Dr. Megan E. Eckart Profile

Dr. Megan E. Eckart

Physicist at Lawrence Livermore National Lab

SPIE Involvement:

Board of Editors | Publications Committee | Conference Program Committee | Editor-in-Chief: Journal of Astronomical Telescopes, Instruments, and Systems | Author

Publications (65)

SPIE Journal Paper | 14 November 2023 Open Access

Line Emission Mapper: an X-ray probe mission concept to study the cosmic ecosystems and the physics of galaxy formation

Daniel Patnaude, Ralph Kraft, Caroline Kilbourne, Simon Bandler, Akos Bogdan, Renata Cumbee, Megan Eckart, Cecilia Garraffo, Edmund Hodges-Kluck, Richard Kelley, Maxim Markevitch, Anna Ogorzalek, Paul Plucinsky, Frederick Porter, John ZuHone, Irina Zhuravleva, Jeremy Drake, Maurice Leutenegger, Steve Kenyon, Stephen Smith, William Zhang, Stephen DePalo, Xiaoyi Li, Nathan Williams, Edward Amatucci, Janice Houston, Deme Apostolou, Hugh Kanner, Kathleen Coderre, Isaac Hayden, Kyle Martin, Elizabeth Osborne, Jeffrey Olson, Steven Ramm, Scott Richardson

JATIS, Vol. 9, Issue 04, 041008, (November 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.041008

KEYWORDS: X-rays, Galactic astronomy, Design, Sensors, Equipment, X-ray optics, Astrophysics, Stars, Ecosystems, Tunable filters

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SPIE Journal Paper | 19 October 2023 Open Access

Line emission mapper microcalorimeter spectrometer

Simon Bandler, Joseph Adams, Edward Amatucci, Edgar Canavan, James Chervenak, Renata Cumbee, Johannes P. Dercksen, Michael DiPirro, William Doriese, Megan Eckart, Manuel Gonzalez, Janice Houston, Brian Jackson, Amir Jahromi, Steven Kenyon, Caroline Kilbourne, Edmund Hodges-Kluck, Ralph Kraft, Xiaoyi Li, Maxim Markevitch, Dan McCammon, Jeffrey Olson, Elizabeth Osborne, Kazuhiro Sakai, Daniel Patnaude, Frederick Porter, Damien Prêle, Peter Shirron, Stephen Smith, Terrence Smith, Nicholas Wakeham, Henk van Weers

JATIS, Vol. 9, Issue 04, 041002, (October 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.041002

KEYWORDS: Tunable filters, Design, Sensors, Time division multiplexing, X-rays, Staring arrays, Cryocoolers, Spectroscopy, Equipment, Detector arrays

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SPIE Journal Paper | 20 July 2023

First flight performance of the Micro-X microcalorimeter X-ray sounding rocket

The Micro-X Collaboration, Joseph S. Adams, Robert Baker, Simon R. Bandler, Noëmie Bastidon, Daniel Castro, Meredith E. Danowksi, William B. Doriese, Megan E. Eckart, Enectalí Figueroa-Feliciano, Joshua Fuhrman, David C. Goldfinger, Sarah N. T. Heine, Gene Hilton, Antonia J. F. Hubbard, Daniel Jardin, Richard L. Kelley, Caroline A. Kilbourne, Steven W. Leman, Renée E. Manzagol-Harwood, Dan McCammon, Philip H. H. Oakley, Takashi Okajima, Frederick Scott Porter, Carl D. Reintsema, John Rutherford, Tarek Saab, Kosuke Sato, Peter Serlemitsos, Stephen J. Smith, Yang Soong, Patrick Wikus

JATIS, Vol. 9, Issue 03, 034001, (July 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.3.034001

KEYWORDS: X-rays, Magnetism, Equipment, Rockets, Finite element methods, Niobium, Superconductors, Tunable filters, Cryostats, Calibration

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SPIE Journal Paper | 19 March 2023

Ground test results of the electromagnetic interference for the x-ray microcalorimeter onboard XRISM

Miki Kurihara, Masahiro Tsujimoto, Megan Eckart, Caroline Kilbourne, Frederick Matsuda, Brian McLaughlin, Shugo Oguri, Frederick Porter, Yoh Takei, on behalf of the XRISM Resolve team, Yoichi Kochibe

JATIS, Vol. 9, Issue 01, 018004, (March 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.1.018004

KEYWORDS: Magnetism, Electromagnetic coupling, Space operations, X-rays, Antennas, X band, Electromagnetic interference, Equipment, Device simulation, S band

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Proceedings Article | 31 August 2022 Poster + Paper

Ground calibration of the x-ray mirror assembly for the x-ray imaging and spectroscopy mission (XRISM) III-performance variation across the aperture

Takayuki Hayashi, Keisuke Tamura, Rozenn Boissay-Malaquin, Takashi Okajima, Toshiki Sato, Lawrence Olsen, Richard Koenecke, Wilson Lara, Leor Bleier, Megan Eckart, Maurice Leutenegger, Tahir Yaqoob, Meng Chiao

Proceedings Volume 12181, 121815Y (2022) https://doi.org/10.1117/12.2627975

KEYWORDS: Reflectors, X-rays, X-ray imaging, Mirrors, Calibration, Aerospace engineering, Spectroscopy, Space operations, Reflectivity, Space mirrors

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Proceedings Article | 31 August 2022 Poster + Paper

Pulse parameters optimization of the modulated x-ray sources for the resolve microcalorimeter spectrometer on XRISM

Cor de Vries, Frederick Porter, Caroline Kilbourne, Masahiro Tsujimoto, Renata Cumbee, Maurice Leutenegger, Megan Eckart, Shunji Kitamoto, Ryuichi Fujimoto, Yoh Takei, Yoshitaka Ishisaki, Makoto Sawada

Proceedings Volume 12181, 1218164 (2022) https://doi.org/10.1117/12.2630133

KEYWORDS: Calibration, Light emitting diodes, Spectroscopy, X-rays, Sensors, Copper, Space operations, Optimization (mathematics)

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Proceedings Article | 31 August 2022 Poster + Paper

Ground test results of the electromagnetic interference for the x-ray microcalorimeter onboard XRISM

Brian McLaughlin, Frederick Porter, Caroline Kilbourne, Yoichi Kochibe, Megan Eckart, Yoh Takei, Miki Kurihara, Masahiro Tsujimoto, Shugo Oguri, Frederick Matsuda

Proceedings Volume 12181, 121815W (2022) https://doi.org/10.1117/12.2627632

KEYWORDS: Magnetism, Electromagnetic coupling, Space operations, Sensors, Antennas, X-rays, X band, S band, Electronics, Device simulation

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Proceedings Article | 31 August 2022 Presentation + Paper

Ground calibration of the x-ray mirror assembly for the X-Ray Imaging and Spectroscopy Mission (XRISM) II: imaging performance and stray light

Keisuke Tamura, Takayuki Hayashi, Rozenn Boissay-Malaquin, Takashi Okajima, Toshiki Sato, Lawrence Olsen, Richard Koenecke, Wilson Lara, Leor Bleier, Megan Eckart, Maurice Leutenegger, Tahir Yaqoob, Meng Chiao

Proceedings Volume 12181, 121811V (2022) https://doi.org/10.1117/12.2629534

KEYWORDS: X-rays, Stray light, Reflectors, Point spread functions, Mirrors, X-ray imaging, Sensors, Charge-coupled devices, Calibration, Aerospace engineering

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Proceedings Article | 31 August 2022 Presentation + Paper

Ground calibration of the x-ray mirror assembly for the X-Ray Imaging and Spectroscopy Mission (XRISM) I-measurement setup and effective area

Rozenn Boissay-Malaquin, Takayuki Hayashi, Keisuke Tamura, Takashi Okajima, Toshiki Sato, Lawrence Olsen, Richard Koenecke, Wilson Lara, Leor Bleier, Megan Eckart, Maurice Leutenegger, Tahir Yaqoob, Meng Chiao

Proceedings Volume 12181, 121811U (2022) https://doi.org/10.1117/12.2627563

KEYWORDS: X-rays, Calibration, Mirrors, X-ray telescopes, Vignetting, X-ray imaging, Telescopes, Sensors, Aerospace engineering, Raster graphics

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Proceedings Article | 31 August 2022 Presentation + Paper

Status of resolve instrument onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

Yuto Ichinohe, Jesus Balleza, Rozenn Boissay-Malaquin, Takayuki Hayashi, Keisuke Tamura, Ryuichi Fujimoto, Yoshitaka Ishisaki, Richard Kelley, Hisamitsu Awaki, Thomas Bialas, Gregory Brown, Meng Chiao, Elisa Costantini, Jan-Willem den Herder, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Steven Graham, Martin Grim, Akio Hoshino, Manabu Ishida, Kumi Ishikawa, Caroline Kilbourne, Shunji Kitamoto, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Misaki Mizumoto, Takashi Okajima, Stephane Paltani, Frederick Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Peter Shirron, Gary Sneiderman, Yang Soong, Andrew Szymkowiak, Yoh Takei, Masahiro Tsujimoto, Shinya Yamada, Susumu Yasuda, Cor de Vries, Kim Barnstable, Edgar Canavan, Timothy Carnahan, Brian Comber, Johannes Dercksen, Nathalie Gorter, Leslie Hartz, Ryota Hayakawa, Natalie Hell, Bryan James, Steven Kenyon, Mark Kimball, Joseph Miko, Atsushi Okamoto, Keisuke Shinozaki, Russell Shipman, Richard Szymkiewicz, Yuusuke Uchida, Stephen Wasserzug, Michael Witthoeft, Rob Wolfs, Renata Cumbee

Proceedings Volume 12181, 121811S (2022) https://doi.org/10.1117/12.2630654

KEYWORDS: Sensors, X-rays, Space operations, Helium, Cryocoolers, Calibration, Optical filters, Sensor performance, X-ray detectors, Signal processing

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Proceedings Article | 31 August 2022 Poster + Paper

High count rate effects in event processing for XRISM/Resolve x-ray microcalorimeter

Makoto Sawada, Yuusuke Uchida, Frederick Porter, Caroline Kilbourne, Maurice Leutenegger, Misaki Mizumoto, Masahiro Tsujimoto, Edmund Hodges-Kluck, Yoshitaka Ishisaki, Shin'ya Yamada, Megan Eckart, Renata Cumbee, Yoh Takei

Proceedings Volume 12181, 121815Z (2022) https://doi.org/10.1117/12.2628784

KEYWORDS: Nickel, Absorption, Distortion, Optical filtering, Iron, X-ray sources, Signal attenuation, Image resolution

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Proceedings Article | 31 August 2022 Poster + Paper

Relative timing calibration of the Resolve x-ray microcalorimeter onboard XRISM using the modulated x-ray source

Tomoki Omama, Masahiro Tsujimoto, Makoto Sawada, Yoshitaka Ishisaki, Shunji Kitamoto, Rob Wolfs, Megan Eckart, Maurice Leutenegger, Cor de Vries, Caroline Kilbourne, Frederick Porter

Proceedings Volume 12181, 1218162 (2022) https://doi.org/10.1117/12.2629753

KEYWORDS: X-rays, Calibration, Space operations, Light emitting diodes, X-ray sources, X-ray imaging, Aerospace engineering, Modulation, Sensors, Spectroscopy

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Proceedings Article | 4 January 2021 Presentation + Paper

First operation of transition-edge sensors in space with the Micro-X sounding rocket

Antonia J. Hubbard, Joseph Adams, Robert Baker, Simon Bandler, Noëmie Bastidon, Meredith Danowski, William Doriese, Megan Eckart, Enectalí Figueroa-Feliciano, David Goldfinger, Sarah N. Heine, Gene Hilton, Richard Kelley, Caroline Kilbourne, Renée Manzagol-Harwood, Dan McCammon, Takashi Okajima, Frederick Porter, Carl Reintsema, Peter Serlemitsos, Stephen Smith, Patrick Wikus, Joshua Fuhrman, Daniel Jardin

Proceedings Volume 11454, 1145414 (2021) https://doi.org/10.1117/12.2562645

KEYWORDS: Sensors, Rockets, Space sensors, Space operations, Signal to noise ratio, X-rays, Physics, Calibration, Calcium, Aerospace engineering

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Proceedings Article | 13 December 2020 Presentation + Paper

Planning in-flight calibration for XRISM

Eric Miller, Masahiro Tsujimoto, Makoto Tashiro, Matteo Guainazzi, Robert Petre, Brian Williams, Hiroya Yamaguchi, Richard Kelley, Megan Eckart, Takayuki Hayashi, Caroline Kilbourne, F. Scott Porter, Maurice Leutenegger, Takashi Okajima, Makoto Sawada, Cor de Vries, Hironori Matsumoto, Koji Mori, Hiroshi Nakajima, Takaaki Tanaka, Michael Loewenstein, Yukikatsu Terada, Tahir Yaqoob, Laura Brenneman, Lia Corrales, Renata Cumbee, Teruaki Enoto, Edmund Hodges-Kluck, Yoshitomo Maeda, Maxim Markevitch, Paul Plucinsky, Katja Pottschmidt, Aurora Simionescu, Liyi Gu, Rozenn Boissay-Malaquin, Keisuke Tamura, Marc Audard, Ehud Behar

Proceedings Volume 11444, 1144426 (2020) https://doi.org/10.1117/12.2561608

KEYWORDS: Calibration, Imaging systems, Error analysis, X-rays, Observatories, Spectral resolution, X-ray imaging, Spectroscopy, Aerospace engineering, Space operations

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Proceedings Article | 13 December 2020 Presentation + Paper

Status of x-ray imaging and spectroscopy mission (XRISM)

Makoto Tashiro, Hironori Maejima, Kenichi Toda, Matteo Guainazzi, Elisa Costantini, Ryuichi Fujimoto, Caroline Kilbourne, Mike Loewenstein, Kiyoshi Hayashida, Joy Henegar-Leon, Matt Holland, Yoshitaka Ishisaki, Koji Mori, Shin Watanabe, Hiroki Akamatsu, Yoshitaka Arai, Marc Audard, Hisamitsu Awaki, Iurii Babyk, Aya Bamba, Nobutaka Bando, Ehud Behar, Thomas Bialas, Rozenn Boissay-Malaquin, Laura Brenneman, Greg Brown, Edgar Canavan, Meng Chiao, Brian Comber, Renata Cumbee, Cor de Vries, Yutaka Fujita, Yasushi Fukazawa, Takafumi Horiuchi, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Sayuri Iga, Ryo Iizuka, Manabu Ishida, Naoki Ishihama, Kumi Ishikawa, Kosei Ishimura, Tess Jaffe, Jelle Kaastra, Timothy Kallman, Erin Kara, Mark Kimball, Takao Kitaguchi, Takayoshi Kohmura, Jon Miller, Kenji Minesugi, Shinji Mitani, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Kazuhiro Nakazawa, Chikara Natsukari, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Atsushi Okamoto, Naomi Ota, Masanobu Ozaki, Stephane Paltani, Paul Plucinsky, Katja Pottschmidt, Michael Sampson, Takahiro Sasaki, Kosuke Sato, Rie Sato, Kazunori Someya, Yang Soong, Keisuke Sugawara, Yasuharu Sugawara, Rob Wolfs, Shinya Yamada, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Kyoko Matsushita, Hiroya Yamaguchi, Richard Kelley, Lillian Reichenthal, Leslie Hartz, Robert Petre, Brian Williams, Takashi Okajima, F. Scott Porter, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Lia Corrales, Jan-Willem den Herder, Johannes Dercksen, Maria Diaz-Trigo, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Dominique Eckert, Satoshi Eguchi, Teruaki Enoto, Yuichiro Ezoe, Carlo Ferrigno, Akihiro Furuzawa, Luigi Gallo, Nathalie Gorter, Martin Grim, Liyi Gu, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, David Hawthorn, Katsuhiro Hayashi, Natalie Hell, Junko Hiraga, Edmund Hodges-Kluck, Satoru Katsuda, Steven Kenyon, Shunji Kitamoto, Shogo Kobayashi, Akihide Kobayashi, Aya Kubota, Maurice Leutenegger, Muzi Li, Tom Lockard, Yoshitomo Maeda, Maxim Markevitch, Connor Martz, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McLaughlin, Brian McNamara, Joseph Miko, Eric Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Kenichiro Nigo, Yusuke Nishioka, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Toshiki Sato, Makoto Sawada, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Shuhei Shigeto, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Randall Smith, Andy Szymkowiak, Hiromitsu Takahashi, Toru Tamagawa, Toshiaki Takeshima, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yoshihiro Ueda, Yuusuke Uchida, Jacco Vink, Shinichiro Uno, Tomomi Watanabe, Michael Witthoeft, Susumu Yasuda, Tessei Yoshida, Nasa Yoshioka, Irina Zhuravleva

Proceedings Volume 11444, 1144422 (2020) https://doi.org/10.1117/12.2565812

KEYWORDS: X-rays, X-ray imaging, Imaging spectroscopy, Spectroscopy, Spectroscopes, X-ray astronomy, Space operations, Control systems, Image resolution, Mirrors

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Proceedings Article | 13 December 2020 Presentation

Initial ground calibration of the Resolve detector system on XRISM

Frederick Porter, Megan Eckart, Maurice Leutenegger, Tomomi Watanabe, Caroline Kilbourne, Richard Kelley, Michaell Witthoeft, Renata Cumbee, Makoto Sawada, Natalie Hell, Gregory Brown, Yoshitaka Ishisaki, Shinya Yamada

Proceedings Volume 11444, 1144424 (2020) https://doi.org/10.1117/12.2561477

KEYWORDS: Calibration, Spectroscopy, Sensors, Temperature metrology, Electron beams, Ions, X-rays

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SPIE Journal Paper | 11 June 2019 Open Access

Design of optical/IR blocking filters for the Lynx X-ray Microcalorimeter

Megan E. Eckart, Wonsik Yoon, Benjamin Zeiger, Simon R. Bandler, Dan McCammon

JATIS, Vol. 5, Issue 02, 021020, (June 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.021020

KEYWORDS: Optical filters, X-rays, Aluminum, X-ray optics, Thin films, Silicon, Waveguides, Digital filtering, Optical design, X-ray telescopes

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SPIE Journal Paper | 31 May 2019 Open Access

Lynx x-ray microcalorimeter

Simon Bandler, James Chervenak, Aaron Datesman, Archana Devasia, Michael DiPirro, Kazuhiro Sakai, Stephen Smith, Thomas Stevenson, Wonsik Yoon, Douglas Bennett, Benjamin Mates, Daniel Swetz, Joel Ullom, Kent Irwin, Megan Eckart, Enectali Figueroa-Feliciano, Dan McCammon, Kevin Ryu, Jeffrey Olson, Ben Zeiger

JATIS, Vol. 5, Issue 02, 021017, (May 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.021017

KEYWORDS: X-rays, Sensors, Field effect transistors, Electronics, Microwave radiation, Staring arrays, Prototyping, Image resolution, Cryocoolers, Superconductors

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SPIE Journal Paper | 29 May 2019 Open Access

Lynx X-Ray Observatory: an overview

Jessica Gaskin, Douglas Swartz, Alexey Vikhlinin, Feryal Özel, Karen E. Gelmis, Jonathan Arenberg, Simon Bandler, Mark Bautz, Marta Civitani, Alexandra Dominguez, Megan Eckart, Abraham Falcone, Enectali Figueroa-Feliciano, Mark Freeman, Hans Günther, Keith Havey, Ralf Heilmann, Kiranmayee Kilaru, Ralph Kraft, Kevin McCarley, Randall McEntaffer, Giovanni Pareschi, William Purcell, Paul Reid, Mark Schattenburg, Daniel Schwartz, Eric Schwartz, Harvey Tananbaum, Grant Tremblay, William Zhang, John Zuhone

JATIS, Vol. 5, Issue 02, 021001, (May 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.021001

KEYWORDS: X-rays, Mirrors, Observatories, Galactic astronomy, Spatial resolution, Sensors, Space operations, X-ray imaging, Spectroscopy, Image resolution

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SPIE Journal Paper | 8 April 2019 Open Access

Multiabsorber transition-edge sensors for x-ray astronomy

Stephen J. Smith, Joseph Adams, Simon Bandler, James Chervenak, Aaron Datesman, Megan Eckart, Fred Finkbeiner, Ruslan Hummatov, Richard Kelley, Caroline Kilbourne, Antoine Miniussi, Frederick Porter, John Sadleir, Kazuhiro Sakai, Nicholas Wakeham, Edward Wassell

JATIS, Vol. 5, Issue 02, 021008, (April 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.021008

KEYWORDS: Sensors, X-rays, X-ray astronomy, Image resolution, Gold, Lithium, Phonons, Signal to noise ratio, Digital filtering, Resistance

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Proceedings Article | 31 July 2018 Presentation + Paper

The ATHENA X-ray Integral Field Unit (X-IFU)

Didier Barret, Jan-Willem den Herder, Thien Lam Trong, Luigi Piro, Massimo Cappi, Juhani Houvelin, Richard Kelley, J. Miguel Mas-Hesse, Kazuhisa Mitsuda, Stéphane Paltani, Gregor Rauw, Agata Rozanska, Joern Wilms, Simon Bandler, Marco Barbera, Xavier Barcons, Enrico Bozzo, Maria Teresa Ceballos, Ivan Charles, Elisa Costantini, Anne Decourchelle, Roland den Hartog, Lionel Duband, Jean-Marc Duval, Fabrizio Fiore, Flavio Gatti, Andrea Goldwurm, Brian Jackson, Peter Jonker, Caroline Kilbourne, Claudio Macculi, Mariano Mendez, Silvano Molendi, Piotr Orleanski, François Pajot, Etienne Pointecouteau, Frederick Porter, Gabriel Pratt, Damien Prêle, Laurent Ravera, Kosuke Sato, Joop Schaye, Keisuke Shinozaki, Tanguy Thibert, Luca Valenziano, Véronique Valette, Jacco Vink, Natalie Webb, Michael Wise, Noriko Yamasaki, Françoise Douchin, Jean-Michel Mesnager, Bernard Pontet, Alice Pradines, Graziella Branduardi-Raymont, Esra Bulbul, Mauro Dadina, Stefano Ettori, Alexis Finoguenov, Yasushi Fukazawa, Agnieszka Janiuk, Jelle Kaastra, Pasquale Mazzotta, Jon Miller, Giovanni Miniutti, Yael Naze, Fabrizio Nicastro, Salavtore Scioritino, Aurora Simonescu, Jose Miguel Torrejon, Benoit Frezouls, Hervé Geoffray, Philippe Peille, Corinne Aicardi, Jérôme André, Christophe Daniel, Antoine Clénet, Christophe Etcheverry, Emilie Gloaguen, Gilles Hervet, Antoine Jolly, Aurélien Ledot, Irwin Paillet, Roseline Schmisser, Bruno Vella, Jean-Charles Damery, Kevin Boyce, Mike Dipirro, Simone Lotti, Denis Schwander, Stephen Smith, Bert-Joost Van Leeuwen, Henk van Weers, Nicolas Clerc, Beatriz Cobo, Thomas Dauser, Christian Kirsch, Edoardo Cucchetti, Megan Eckart, Philippe Ferrando, Lorenzo Natalucci

Proceedings Volume 10699, 106991G (2018) https://doi.org/10.1117/12.2312409

KEYWORDS: Spectral resolution, X-rays, Sensors, Cryogenics, Optical filters, Wind energy, Electronics, X-ray astronomy, Mirrors, X-ray sources

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Proceedings Article | 10 July 2018 Presentation

The Design of the Lynx x-ray microcalorimeter (LXM) (Conference Presentation)

Simon Bandler, Michael DiPirro, Megan Eckart, Kazuhiro Sakai, Stephen Smith, Wonsik Yoon, Douglas Bennett, Ben J. Mates, Daniel Swetz, Joel Ullom, Kent Irwin, Dan McCammon, Enectali Figueroa-Feliciano, Kevin Ryu, Ben Zeiger, Jeffrey Olson

Proceedings Volume 10699, 1069913 (2018) https://doi.org/10.1117/12.2314079

KEYWORDS: X-rays, Image resolution, X-ray optics, Oxygen, Amplifiers, Cryogenics, X-ray telescopes, Satellites, X-ray imaging, Spectroscopy

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Lynx is an x-ray telescope that is one of four large satellite mission concepts currently being studied by NASA to be the next flagship mission. One of Lynx’s three instruments is the Lynx X-ray Microcalorimeter (LXM), an imaging spectrometer placed at the focus of an x-ray optic with 0.5 arc-second angular resolution and approximately 2 m2 area at 1 keV. It will be used for a wide variety of observations, and the driving performance requirements are met through different sub-regions of the array. It will provide an energy resolution of better than 3 eV over the energy range of 0.2 to 7 keV, with pixels sizes that vary in scale from 0.5 to 1 arc-seconds in the inner 5 arc-minute field-of-view, and to 5 arc-seconds in the extended 20 arc-minute field-of-view. The Main Array consists mostly of 1 arc-second pixels in the central 5 arc-minutes with less than 3 eV energy resolution (FWHM) in the energy range of 0.2 to 7 keV. It is enhanced in the inner 1 arc-minute region with 0.5 arc-second pixels that will better sample the point spread function of the X-ray optic. The inner 5 arc-minute region is designed specifically for the observations related to cosmic feedback studies, investigating the interactions of AGN with the local regions surrounding them. The 0.5" pixel size allows detailed studies of winds and jets on a finer angular scale. It is also optimized for spatially resolved measurements of cluster cores. The outer regions of the array are designed to operate during a completely different set of observations. The Extended Array will be utilized for surveys over large regions of the sky, the 20 arc-minute field-of-view making it practical to make observations of the soft diffuse emission from larger scale-structure such as extended galaxies, the outer regions of galaxy groups and clusters and also cosmic filaments. This array is optimized for high energy resolution up to 2 keV through the use of thin (0.5 um) gold absorbers. The Ultra-High-Res Array is designed specifically to enable the study turbulent line broadening around individual through the study of the highly ionized oxygen lines. It is optimized for energy resolution for the oxygen VII and VIII lines, with better than 0.4 eV energy resolution. In this paper we present the design of the baseline configuration and the scientific motivation. We discuss the technologies that are being developed for this instrument, in particular the transition-edge sensor (TES) and metallic magnetic calorimeter (MMC) sensor technologies. We place these technologies in the context of the required energy resolution, energy range, pixel size, and count-rate, as well as strategies for the pixel layout and wiring. We will discuss the use of microwave SQUIDs, HEMT amplifiers, and parametric amplifiers for the read-out and the implications for the cryogenic design. We also describe the design of the full instrument, including the strawman cryogenic design, as well as an estimate for the mass, power and data rate.

Proceedings Article | 10 July 2018 Presentation

Status of resolve instrument for x-ray astronomy recovery mission (Conference Presentation)

Yoshitaka Ishisaki, Richard Kelley, Hiroki Akamatsu, Hisamitsu Awaki, Thomas Bialas, Gregory Brown, Meng Chiao, Elisa Costantini, Jan-Willem den Herder, Michael Dipirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Akihiro Furuzawa, Steven Graham, Martin Grim, Takayuki Hayashi, Akio Hoshino, Yuto Ichinohe, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Caroline Kilbourne, Shunji Kitamoto, Shu Koyama, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Ikuyuki Mitsuishi, Hideyuki Mori, Shinya Nakashima, Hirofumi Noda, Takaya Ohashi, Takashi Okajima, Stephane Paltani, F. Scott Porter, Kosuke Sato, Makoto Sawada, Hiromi Seta, Peter Shirron, Gary Sneiderman, Yang Soong, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Masahiro Tsujimoto, Shutaro Ueda, Cor de Vries, Shinya Yamada, Noriko Yamasaki, Kumi Ishikawa

Proceedings Volume 10699, 1069924 (2018) https://doi.org/10.1117/12.2313440

KEYWORDS: X-ray astronomy, X-rays, Silicon, Mirrors, Spectroscopy, Image resolution, Spectroscopes, X-ray telescopes, Optical instrument design

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Proceedings Article | 10 July 2018 Presentation

Transition-edge sensor array development for the ATHENA x-ray itegral field unit (Conference Presentation)

Joesph Adams, Simon Bandler, James Chervenak, Megan Eckart, Fred Finkbeiner, Richard Kelley, Antoine Miniussi, F. Scott Porter, Kazuhiro Sakai, Nicholas Wakeham, Edward Wassell, Wonsik Yoon, John Sadleir, Hiroki Akamatsu, Luciano Gottardi, Roland den Hartog, Brian Jackson, Jan van der Kuur, Caroline Kilbourne, Stephen Smith

Proceedings Volume 10699, 106991L (2018) https://doi.org/10.1117/12.2313428

KEYWORDS: X-rays, Sensors, Transition metals, Observatories, Spectral resolution, Multiplexing, Fused deposition modeling, Telescopes, Metals

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The X-ray integral field unit (X-IFU) proposed for ESA’s Athena X-ray observatory will consist of 3840 transition edge sensor (TES) microcalorimeters optimized for the energy range of 0.2 to 12 keV. The instrument will provide unprecedented spectral resolution of ~ 2.5 eV at energies of up to 7 keV and will accommodate photon fluxes of 10’s mcrab (1000’s cps). Over the past two years the baseline configuration has evolved from the original proposal. The current baseline consists of a uniform large pixel array (LPA) of 5” pixels, AC-biased within their superconducting-to-normal transition and read out using frequency domain multiplexing (FDM). The baseline pixel design is approximately a factor of two times slower than in the original concept. High count-rate accommodation, needed for bright point source observations, is now achieved by defocusing the telescope optic to spread the photons over a larger number of pixels. In this paper we report on Mo/Au TES designs that are being optimized to meet the baseline pixel parameters and performance goals. This includes detailed studies on the optimization of the thermal heat sink and the impact of different TES geometries (including TES size and normal metal feature geometries) on the DC-biased transition shape. We discuss how these geometric effects ultimately impact important performance metrics such as energy resolution, decay time, slew-rate and array scale uniformity. Our Mo/Au TESs have historically been designed and optimized for DC-biased operation, however, the primary readout technology uses an AC drive to bias the TES. Depending upon the drive frequency, the AC bias affects the TES transition shape in two ways. Firstly, due to losses from the bias current coupling to metallic components in close proximity to the TES and secondly introducing fine structure in the transition due to Josephson effects. We present latest pixel design optimizations targeted at mitigating these frequency dependent effects in order to achieve commensurate performance with that obtained in the DC case.

Proceedings Article | 6 July 2018 Paper

Testing the X-IFU calibration requirements: an example for quantum efficiency and energy resolution

Megan Eckart, Simon Bandler, Caroline Kilbourne, Edoardo Cucchetti, François Pajot, Etienne Pointecouteau, Philippe Peille, Gabriele Betancourt-Martinez, Stephen Smith, Marco Barbera, Massimo Cappi, Didier Barret

Proceedings Volume 10699, 106994O (2018) https://doi.org/10.1117/12.2312188

KEYWORDS: Quantum efficiency, Calibration, Sensors, Error analysis, X-rays

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Proceedings Article | 6 July 2018 Presentation + Paper

Concept of the X-ray Astronomy Recovery Mission

Hironori Maejima, Lorella Angelini, Elisa Costantini, Mark Edison, Jan-Willem den Herder, Yoshitaka Ishisaki, Kyoko Matsushita, Koji Mori, Matteo Guainazzi, Richard Kelley, Kenichi Toda, Lillian Reichenthal, James Lobell, Robert Petre, Ryuichi Fujimoto, Martin Grim, Kiyoshi Hayashida, Stéphane Paltani, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Makoto Tashiro, Hiroki Akamatsu, Yoshitaka Arai, Hisamitsu Awaki, Lurli Babyk, Aya Bamba, Peter Barfknecht, Kim Barnstable, Thomas Bialas, Branimir Blagojevic, Joseph Bonafede, Clifford Brambora, Laura Brenneman, Greg Brown, Kimberly Brown, Laura Burns, Edgar Canavan, Tim Carnahan, Meng Chiao, Brian Comber, Lia Corrales, Cor de Vries, Johannes Dercksen, Maria Diaz-Trigo, Tyrone Dillard, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Teruaki Enoto, Yuichiro Ezoe, Carlo Ferrigno, Yasushi Fukazawa, Akihiro Furuzawa, Luigi Gallo, Steve Graham, Liyi Gu, Kohichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Dean Hawes, Takayuki Hayashi, Cailey Hegarty, Natalie Hell, Junko Hiraga, Edmund Hodges-Kluck, Matt Holland, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Bryan James, Timothy Kallman, Erin Kara, Satoru Katsuda, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Takao Kitaguti, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Shu Koyama, Aya Kubota, Maurice Leutenegger, Tom Lockard, Mike Loewenstein, Yoshitomo Maeda, Lynette Marbley, Maxim Markevitch, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McNamara, Joseph Miko, Eric Miller, Jon Miller, Kenji Minesugi, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Hideyuki Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Shinya Nakashima, Kazuhiro Nakazawa, Chikara Natsukari, Kenichiro Nigo, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Michitaka Onizuka, Naomi Ota, Masanobu Ozaki, Paul Plucinsky, F. Scott Porter, Katja Pottschmidt, Kosuke Sato, Rie Sato, Makoto Sawada, Hiromi Seta, Ken Shelton, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Peter Shirron, Aurora Simionescu, Randall Smith, Kazunori Someya, Yang Soong, Yasuharu Suagawara, Andy Szymkowiak, Hiromitsu Takahashi, Toru Tamagawa, Takayuki Tamura, Takaaki Tanaka, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Thomas Walsh, Shin Watanabe, Brian Williams, Rob Wolfs, Michael Wright, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Shigeo Yamauchi, Makoto Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Susumu Yasuda, Nasa Yoshioka, Jaime Zabala, Zhuravleva Irina, Yutaka Fujita

Proceedings Volume 10699, 1069922 (2018) https://doi.org/10.1117/12.2309455

KEYWORDS: X-rays, Spectroscopy, Plasma, Galactic astronomy, Iron, Physics, Galaxy groups and clusters, Chemical elements, X-ray astronomy, Stars

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The ASTRO-H mission was designed and developed through an international collaboration of JAXA, NASA, ESA, and the CSA. It was successfully launched on February 17, 2016, and then named Hitomi. During the in-orbit verification phase, the on-board observational instruments functioned as expected. The intricate coolant and refrigeration systems for soft X-ray spectrometer (SXS, a quantum micro-calorimeter) and soft X-ray imager (SXI, an X-ray CCD) also functioned as expected. However, on March 26, 2016, operations were prematurely terminated by a series of abnormal events and mishaps triggered by the attitude control system. These errors led to a fatal event: the loss of the solar panels on the Hitomi mission. The X-ray Astronomy Recovery Mission (or, XARM) is proposed to regain the key scientific advances anticipated by the international collaboration behind Hitomi. XARM will recover this science in the shortest time possible by focusing on one of the main science goals of Hitomi,“Resolving astrophysical problems by precise high-resolution X-ray spectroscopy”.¹ This decision was reached after evaluating the performance of the instruments aboard Hitomi and the mission’s initial scientific results, and considering the landscape of planned international X-ray astrophysics missions in 2020’s and 2030’s. Hitomi opened the door to high-resolution spectroscopy in the X-ray universe. It revealed a number of discrepancies between new observational results and prior theoretical predictions. Yet, the resolution pioneered by Hitomi is also the key to answering these and other fundamental questions. The high spectral resolution realized by XARM will not offer mere refinements; rather, it will enable qualitative leaps in astrophysics and plasma physics. XARM has therefore been given a broad scientific charge: “Revealing material circulation and energy transfer in cosmic plasmas and elucidating evolution of cosmic structures and objects”. To fulfill this charge, four categories of science objectives that were defined for Hitomi will also be pursued by XARM; these include (1) Structure formation of the Universe and evolution of clusters of galaxies; (2) Circulation history of baryonic matters in the Universe; (3) Transport and circulation of energy in the Universe; (4) New science with unprecedented high resolution X-ray spectroscopy. In order to achieve these scientific objectives, XARM will carry a 6 × 6 pixelized X-ray micro-calorimeter on the focal plane of an X-ray mirror assembly, and an aligned X-ray CCD camera covering the same energy band and a wider field of view. This paper introduces the science objectives, mission concept, and observing plan of XARM.

Proceedings Article | 6 July 2018 Paper

Super DIOS: future x-ray spectroscopic mission to search for dark baryons

T. Ohashi, Y. Ishisaki, Y. Ezoe, S. Yamada, Y. Tawara, I. Mitsuishi, K. Mitsuda, N. Yamasaki, K. Sato, N. Ota, K. Ohtsuka, R. Hayakawa, K. Nunomura, T. Kikuchi, T. Hayashi, H. Muramatsu, Y. Nakashima, K. Osato, Y. Ichinohe, M. Eckart, S. Bandler, R. Kelley, C. Kilbourne

Proceedings Volume 10699, 1069928 (2018) https://doi.org/10.1117/12.2313122

KEYWORDS: X-rays, Spatial resolution, Telescopes, Microwave radiation, Spectroscopy, X-ray telescopes, Coating, Cooling systems, Space telescopes, Sensors

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Proceedings Article | 6 July 2018 Paper

Energy scale calibration and drift correction of the X-IFU

Cor de Vries, Edoardo Cucchetti, Megan Eckart, François Pajot, Frederick Porter, Etienne Pointecouteau, Caroline Kilbourne, Maurice Leutenegger, Philippe Peille

Proceedings Volume 10699, 106994M (2018) https://doi.org/10.1117/12.2312170

KEYWORDS: Calibration, Error analysis, X-rays

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SPIE Journal Paper | 28 April 2018 Open Access

Cryogen-free operation of the Soft X-ray Spectrometer instrument

Gary Sneiderman, Peter Shirron, Ryuichi Fujimoto, Thomas Bialas, Kevin Boyce, Meng Chiao, Michael DiPirro, Megan Eckart, Leslie Hartz, Yoshitaka Ishisaki, Caroline Kilbourne, Candace Masters, Daniel McCammon, Kazuhisa Mitsuda, Hirofumi Noda, Frederick Porter, Andrew Szymkowiak, Yoh Takei, Masahiro Tsujimoto, Seiji Yoshida

JATIS, Vol. 4, Issue 02, 021408, (April 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021408

KEYWORDS: Helium, X-rays, Cooling systems, Spectroscopy, Sensors, Liquids, Cryocoolers, Cryogenics, X-ray detectors, Temperature metrology

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SPIE Journal Paper | 13 April 2018 Open Access

Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer

Megan Eckart, Joseph Adams, Kevin Boyce, Gregory Brown, Meng Chiao, Ryuichi Fujimoto, Daniel Haas, Jan-Willem den Herder, Akio Hoshino, Yoshitaka Ishisaki, Caroline Kilbourne, Shunji Kitamoto, Maurice Leutenegger, Daniel McCammon, Kazuhisa Mitsuda, F. Scott Porter, Kosuke Sato, Makoto Sawada, Hiromi Seta, Gary Sneiderman, Andrew Szymkowiak, Yoh Takei, Makoto Tashiro, Masahiro Tsujimoto, Cor de Vries, Tomomi Watanabe, Shinya Yamada, Noriko Yamasaki

JATIS, Vol. 4, Issue 02, 021406, (April 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021406

KEYWORDS: Calibration, X-rays, Sensors, Beryllium, Optical filters, Spectroscopy, Iron, Epoxies, Photons, Silicon

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SPIE Journal Paper | 19 March 2018 Open Access

In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-ray Spectrometer

Maurice A. Leutenegger, Marc Audard, Kevin R. Boyce, Gregory V. Brown, Meng P. Chiao, Megan E. Eckart, Ryuichi Fujimoto, Akihiro Furuzawa, Matteo Guainazzi, Daniel Haas, Takayuki Hayashi, Jan-Willem den Herder, Ryo Iizuka, Manabu Ishida, Yoshitaka Ishisaki, Naomichi Kikuchi, Caroline A. Kilbourne, Shu Koyama, Sho Kurashima, Yoshitomo Maeda, Maxim Markevitch, Dan McCammon, Kazuhisa Mitsuda, Hideyuki Mori, Nozomi Nakaniwa, Takashi Okajima, Stéphane Paltani, Robert Petre, F. Scott Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Peter J. Serlemitsos, Hiromi Seta, Gary Sneiderman, Yang Soong, Satoshi Sugita, Andrew Szymkowiak, Yoh Takei, Makoto Tashiro, Yuzuru Tawara, Masahiro Tsujimoto, Cor de Vries, Tomomi Watanabe, Shinya Yamada, Noriko Yamasaki

JATIS, Vol. 4, Issue 02, 021407, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021407

KEYWORDS: Calibration, X-rays, Iron, Spectroscopy, Image resolution, Aerospace engineering, Sensors, Beryllium, Physics, X-ray imaging

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SPIE Journal Paper | 13 March 2018 Open Access

Hitomi (ASTRO-H) X-ray Astronomy Satellite

Tadayuki Takahashi, Motohide Kokubun, Kazuhisa Mitsuda, Richard Kelley, Takaya Ohashi, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steven Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Gregory Brown, Esra Bulbul, Edward Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Stephen O’ Dell, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Megan E. Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Ilana Harrus, Isamu Hatsukade, Takayuki Hayashi, Katsuhiro Hayashi, Kiyoshi Hayashida, Jan-Willem den Herder, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Yuto Ichinohe, Ryo Iizuka, Hajime Inoue, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Masachika Iwai, Naoko Iwata, Naoko Iyomoto, Christopher Jewell, Jelle Kaastra, Timothy Kallman, Tsuneyoshi Kamae, Erin Kara, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangulyan, Caroline Kilbourne, Mark Kimball, Ashley King, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Saori Konami, Tatsuro Kosaka, Alexander Koujelev, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, Shiu-Hang Lee, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Daniel McCammon, Daniel McGuinness, Brian McNamara, Missagh Mehdipour, Joseph Miko, Eric Miller, Jon Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Franco Moroso, Samuel Moseley, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Hosei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Toshio Nakano, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Masaharu Nomachi, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frederik B. Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Jelle de Plaa, Martin Pohl, James Pontius, Frederick Porter, Katja Pottschmidt, Brian Ramsey, Christopher Reynolds, Helen Russell, Samar Safi-Harb, Shinya Saito, Kazuhiro Sakai, Shin-ichiro Sakai, Hiroaki Sameshima, Toru Sasaki, Goro Sato, Kosuke Sato, Rie Sato, Yoichi Sato, Makoto Sawada, Norbert Schartel, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Satoshi Sugita, Hiroyuki Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Go Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yasunobu Uchiyama, Shutaro Ueda, Yoshihiro Ueda, Shiro Ueno, Shin’ichiro Uno, C. Megan Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Daniel R. Wik, Dan R. Wilkins, Brian J. Williams, Shinya Yamada, Takahiro Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Y. Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi

JATIS, Vol. 4, Issue 02, 021402, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.2.021402

KEYWORDS: Sensors, X-ray astronomy, Satellites, Physics, X-rays, Space operations, Aerospace engineering, Astronomy, Space telescopes, X-ray telescopes

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SPIE Journal Paper | 1 March 2018 Open Access

In-flight performance of pulse-processing system of the ASTRO-H/Hitomi soft x-ray spectrometer

Yoshitaka Ishisaki, Shinya Yamada, Hiromi Seta, Makoto Tashiro, Sawako Takeda, Yukikatsu Terada, Yuka Kato, Masahiro Tsujimoto, Shu Koyama, Kazuhisa Mitsuda, Makoto Sawada, Kevin Boyce, Meng Chiao, Tomomi Watanabe, Maurice Leutenegger, Megan Eckart, Frederick Scott Porter, Caroline Anne Kilbourne

JATIS, Vol. 4, Issue 01, 011217, (March 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011217

KEYWORDS: Field programmable gate arrays, X-rays, Electroluminescence, Sensors, Space operations, Calibration, Spectroscopy, Optimal filtering, Signal processing, Aerospace engineering

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SPIE Journal Paper | 26 February 2018 Open Access

Design, implementation, and performance of the Astro-H soft x-ray spectrometer aperture assembly and blocking filters

Caroline Kilbourne, Joseph Adams, Petar Arsenovic, Travis Ayers, Meng Chiao, Michael DiPirro, Megan Eckart, Ryuichi Fujimoto, John Kazeva, Kari Kripps, Bruce Lairson, Maurice Leutenegger, Heidi Lopez, Daniel McCammon, Daniel McGuinness, Kazuhisa Mitsuda, Samuel Moseley, F. Scott Porter, Andrea Schweiss, Yoh Takei, Rosemary Thorpe, Tomomi Watanabe, Noriko Yamasaki, Seiji Yoshida

JATIS, Vol. 4, Issue 01, 011215, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011215

KEYWORDS: Optical filters, X-rays, Spectroscopy, Silicon, Thin films, Sensors, Interfaces, Contamination, Fermium, Frequency modulation

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SPIE Journal Paper | 23 February 2018 Open Access

Design, implementation, and performance of the Astro-H SXS calorimeter array and anticoincidence detector

Caroline Kilbourne, Joseph Adams, Regis Brekosky, James Chervenak, Meng Chiao, Megan Eckart, Enectali Figueroa-Feliciano, Massimiliano Galeazzi, Christoph Grein, Christine Jhabvala, Daniel Kelly, Maurice Leutenegger, Daniel McCammon, F. Scott Porter, Andrew Szymkowiak, Tomomi Watanabe, Jun Zhao

JATIS, Vol. 4, Issue 01, 011214, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011214

KEYWORDS: Sensors, Gold, X-rays, Silicon, Resistance, Resistors, Mercury, Detector arrays, Spectral resolution, Particles

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SPIE Journal Paper | 20 February 2018 Open Access

In-flight performance of the soft x-ray spectrometer detector system on Astro-H

Frederick S. Porter, Kevin R. Boyce, Meng P. Chiao, Megan E. Eckart, Ryuichi Fujimoto, Yoshitaka Ishisaki, Caroline Anne Kilbourne, Maurice A. Leutenegger, Daniel McCammon, Kazuhisa Mitsuda, Kosuke Sato, Hiromi Seta, Makoto Sawada, Gary A. Sneiderman, Andrew E. Szymkowiak, Yoh Takei, Makoto S. Tashiro, Masahiro Tsujimoto, Tomomi Watanabe, Shinya Yamada

JATIS, Vol. 4, Issue 01, 011218, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011218

KEYWORDS: Sensors, X-rays, Field effect transistors, Calibration, Space operations, Spectroscopy, X-ray detectors, Staring arrays, Control systems, Helium

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SPIE Journal Paper | 15 February 2018 Open Access

Vibration isolation system for cryocoolers of soft x-ray spectrometer on-board ASTRO-H (Hitomi)

Yoh Takei, Susumu Yasuda, Kosei Ishimura, Naoko Iwata, Atsushi Okamoto, Yohichi Sato, Mina Ogawa, Makoto Sawada, Taro Kawano, Shingo Obara, Chikara Natsukari, Atsushi Wada, Shinya Yamada, Ryuichi Fujimoto, Motohide Kokubun, Noriko Yamasaki, Hiroyuki Sugita, Kenji Minesugi, Yasuo Nakamura, Kazuhisa Mitsuda, Tadayuki Takahashi, Seiji Yoshida, Shoji Tsunematsu, Kenichi Kanao, Katsuhiro Narasaki, Kiyomi Otsuka, Frederick Porter, Caroline Kilbourne, Meng Chiao, Megan Eckart, Gary Sneiderman, James Pontius, Dan McCammon, Paul Wilke, John Basile

JATIS, Vol. 4, Issue 01, 011216, (February 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011216

KEYWORDS: Sensors, Frequency modulation, Temperature metrology, Cryocoolers, Vibration isolation, X-rays, Space operations, Spectroscopy, Fermium, Head

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SPIE Journal Paper | 29 December 2017 Open Access

Performance of the helium dewar and the cryocoolers of the Hitomi soft x-ray spectrometer

Ryuichi Fujimoto, Yoh Takei, Kazuhisa Mitsuda, Noriko Yamasaki, Masahiro Tsujimoto, Shu Koyama, Kumi Ishikawa, Hiroyuki Sugita, Yoichi Sato, Keisuke Shinozaki, Atsushi Okamoto, Shunji Kitamoto, Akio Hoshino, Kosuke Sato, Yuichiro Ezoe, Yoshitaka Ishisaki, Shinya Yamada, Hiromi Seta, Takaya Ohashi, Toru Tamagawa, Hirofumi Noda, Makoto Sawada, Makoto Tashiro, Yoichi Yatsu, Ikuyuki Mitsuishi, Kenichi Kanao, Seiji Yoshida, Mikio Miyaoka, Shoji Tsunematsu, Kiyomi Otsuka, Katsuhiro Narasaki, Michael DiPirro, Peter Shirron, Gary Sneiderman, Caroline Kilbourne, Frederick Scott Porter, Meng Chiao, Megan Eckart

JATIS, Vol. 4, Issue 01, 011208, (December 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011208

KEYWORDS: Cryocoolers, Helium, X-rays, Spectroscopy, Sensors, Liquids, Space operations, Rockets, Chemical mechanical planarization, Physics

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SPIE Journal Paper | 6 November 2017 Open Access

In-orbit operation of the soft x-ray spectrometer onboard the Hitomi satellite

Masahiro Tsujimoto, Kazuhisa Mitsuda, Richard Kelley, Jan-Willem den Herder, Thomas Bialas, Kevin Boyce, Meng Chiao, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Caroline Kilbourne, Shu Koyama, Maurice Leutenegger, Candace Masters, Ikuyuki Mitsuishi, Hirofumi Noda, Takashi Okajima, Atsushi Okamoto, Frederick Porter, Kosuke Sato, Yohichi Sato, Joseph Savinell, Makoto Sawada, Hiromi Seta, Peter Shirron, Gary Sneiderman, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Tomomi Watanabe, Shinya Yamada, Noriko Y. Yamasaki, Yoichi Yatsu

JATIS, Vol. 4, Issue 01, 011205, (November 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011205

KEYWORDS: X-rays, Satellites, Spectroscopy, Space operations, Sensors, Physics, Filtering (signal processing), Calibration, Control systems, Field effect transistors

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SPIE Journal Paper | 27 October 2017 Open Access

Calibration sources and filters of the soft x-ray spectrometer instrument on the Hitomi spacecraft

Cor P. de Vries, Daniel Haas, Noriko Y. Yamasaki, Jan-Willem den Herder, Stéphane Paltani, Caroline Kilbourne, Masahiro Tsujimoto, Megan Eckart, Maurice A. Leutenegger, Elisa Costantini, Johannes P. C. Dercksen, Luc Dubbeldam, Martin Frericks, Phillip P. Laubert, Sander van Loon, Paul Lowes, Alec J. McCalden, Frederick S. Porter, Jos Ruijter, Rob Wolfs

JATIS, Vol. 4, Issue 01, 011204, (October 2017) https://doi.org/10.1117/12.10.1117/1.JATIS.4.1.011204

KEYWORDS: Calibration, X-rays, Light emitting diodes, Optical filters, Beryllium, Spectroscopy, Iron, Satellites, Sensors, Photons

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Proceedings Article | 29 August 2017 Presentation + Paper

The evaluation of the Hitomi (Astro-H)/SXS spare beryllium window in 3.8-30 keV

Akio Hoshino, Yuki Yoshida, Shunji Kitamoto, Ryuichi Fujimoto, Noriko Yamasaki, Toshiaki Ina, Tomoya Uruga, Megan Eckart, Maurice Leutenegger

Proceedings Volume 10397, 103970E (2017) https://doi.org/10.1117/12.2272899

KEYWORDS: Beryllium, X-rays, X-ray fluorescence spectroscopy, Space operations, X-ray optics, Calibration, Space telescopes

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Proceedings Article | 26 August 2016 Paper

Status of the micro-X sounding rocket x-ray spectrometer

D. Goldfinger, E. Figueroa-Feliciano, W. Doriese, M. Eckart, G. Hilton, A. J. Hubbard, R. Kelley, C. Kilbourne, P. Serlemitsos, P. Wikus, J. Adams, R. Baker, S. Bandler, M. Danowski, D. McCammon, T. Okajima, F. Porter, C. Reintsema, S. Smith, S. N. T. Heine

Proceedings Volume 9905, 99054S (2016) https://doi.org/10.1117/12.2233299

KEYWORDS: Rockets, X-ray telescopes, Sensors, X-rays, Image resolution, Electronics, Multiplexers, Multiplexing, Spectroscopy, X-ray astronomy

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Proceedings Article | 17 August 2016 Paper

The Astro-H high resolution soft x-ray spectrometer

Phillipp Azzarello, Tom Bialas, Gregory Brown, Meng Chiao, Michael DiPirro, Ryuichi Fujimoto, Daniel Haas, Jan-Willem den Herder, Akio Hoshino, Yoshitaka Ishisaki, Naoko Iyomoto, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Dan McCammon, Kazuhisa Mitsuda, Ikuyuki Mitsuishi, Harvey Moseley, Hiroshi Murakami, Hirofumi Noda, Mina Ogawa, Stéphane Paltani, F. Porter, Kazuhiro Sakai, Hiromi Seta, Keisuke Shinozaki, Andrew Szymkowiak, Yoh Takei, Cor de Vries, Noriko Yamasaki, Yoichi Yatsu, Richard Kelley, Hiroki Akamatsu, Kevin Boyce, Edgar Canavan, Elisa Costantini, Megan Eckart, Yuichiro Ezoe, Kumi Ishikawa, Saori Konami, Shu Koyama, Maurice Leutenegger, Masahide Murakami, Takaya Ohashi, Atsushi Okamoto, Naomi Ota, Kosuke Sato, Yohichi Sato, Makoto Sawada, Peter Shirron, Gary Sneiderman, Hiroyuki Sugita, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Masahiro Tsujimoto, Shinya Yamada

Proceedings Volume 9905, 99050V (2016) https://doi.org/10.1117/12.2232509

KEYWORDS: X-rays, Sensors, Spectroscopy, Space operations, Lithium, Field effect transistors, Satellites, Calibration, Single crystal X-ray diffraction, Magnetic sensors

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Proceedings Article | 26 July 2016 Paper

In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-Ray Spectrometer

Hideyuki Mori, Ryo Iizuka, Manabu Ishida, Naomichi Kikuchi, Yuzuru Tawara, Akihiro Furuzawa, Satoshi Sugita, Jan-Willem den Herder, Cor de Vries, Daniel Haas, Marc Audard, Stéphane Paltani, Maurice Leutenegger, Megan Eckart, Kevin Boyce, Meng Chiao, Richard Kelley, Caroline Kilbourne, Takashi Okajima, Robert Petre, F. Scott Porter, Peter Serlemitsos, Gary Sneiderman, Yang Soong, Tomomi Watanabe, Takayuki Hayashi, Dan McCammon, Andrew Szymkowiak, Gregory Brown, Ryuichi Fujimoto, Yoshitaka Ishisaki, Shinya Yamada, Matteo Guainazzi, Sho Kurashima, Yoshitomo Maeda, Kazuhisa Mitsuda, Nozomi Nakaniwa, Toshiki Sato, Yoh Takei, Masahiro Tsujimoto, Noriko Yamasaki, Makoto Sawada, Makoto Tashiro, Kosuke Sato, Hiromi Seta, Shu Koyama, Maxim Markevitch

Proceedings Volume 9905, 99053U (2016) https://doi.org/10.1117/12.2234230

KEYWORDS: X-ray imaging, X-rays, Calibration, Spectroscopy, Sensors, X-ray imaging, Image resolution, Beryllium, X-ray technology, Space telescopes, Manganese

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Proceedings Article | 26 July 2016 Paper

Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer

M. Leutenegger, G. Brown, M. Chiao, D. Haas, J. W. den Herder, Y. Ishisaki, R. Kelley, C. Kilbourne, D. McCammon, F. Porter, G. Sneiderman, A. Szymkowiak, M. Tsujimoto, C. de Vries, S. Yamada, M. Eckart, J. Adams, K. Boyce, R. Fujimoto, K. Mitsuda, M. Sawada, Y. Takei, M. Tashiro, T. Watanabe, N. Yamasaki, K. Sato, H. Seta

Proceedings Volume 9905, 99053W (2016) https://doi.org/10.1117/12.2233053

KEYWORDS: X-rays, Optical filters, Sensors, Silicon, X-rays, Thin films, Interfaces, Fermium, Frequency modulation, Temperature metrology, Contamination

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Proceedings Article | 20 July 2016 Paper

The ASTRO-H (Hitomi) x-ray astronomy satellite

Tadayuki Takahashi, Motohide Kokubun, Kazuhisa Mitsuda, Takaya Ohashi, Richard Kelley, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Magnus Axelsson, Philipp Azzarello, Chris Baluta, Aya Bamba, Nobutaka Bando, Marshall Bautz, Thomas Bialas, Roger Blandford, Kevin Boyce, Laura Brenneman, Greg Brown, Esra Bulbul, Edward Cackett, Edgar Canavan, Maria Chernyakova, Meng Chiao, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Megan Eckart, Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Akihiro Furuzawa, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Kirk Gilmore, Margherita Giustini, Andrea Goldwurm, Liyi Gu, Matteo Guainazzi, Daniel Haas, Yoshito Haba, Kouichi Hagino, Kenji Hamaguchi, Atsushi Harayama, Ilana Harrus, Isamu Hatsukade, Takayuki Hayashi, Katsuhiro Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Yuto Ichinohe, Ryo Iizuka, Yoshiyuki Inoue, Hajime Inoue, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Itoh, Naoko Iwata, Naoko Iyomoto, Chris Jewell, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Erin Kara, Jun Kataoka, Satoru Katsuda, Junichiro Katsuta, Madoka Kawaharada, Nobuyuki Kawai, Taro Kawano, Shigeo Kawasaki, Dmitry Khangulyan, Caroline Kilbourne, Mark Kimball, Ashley King, Takao Kitaguchi, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Tatsuro Kosaka, Alex Koujelev, Katsuji Koyama, Shu Koyama, Peter Kretschmar, Hans Krimm, Aya Kubota, Hideyo Kunieda, Philippe Laurent, François Lebrun, Shiu-Huang Lee, Maurice Leutenegger, Olivier Limousin, Michael Loewenstein, Knox Long, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Daniel Maier, Kazuo Makishima, Maxim Markevitch, Candace Masters, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Daniel McGuinness, Brian McNamara, Missagh Mehdipour, Joseph Miko, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Koji Mori, Hideyuki Mori, Franco Moroso, Harvey Moseley, Theodore Muench, Koji Mukai, Hiroshi Murakami, Toshio Murakami, Richard Mushotzky, Housei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Toshio Nakano, Shinya Nakashima, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Kumiko Nobukawa, Hirofumi Noda, Masaharu Nomachi, Steve O'Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Frederik Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Ciro Pinto, Martin Pohl, James Pontius, F. Scott Porter, Katja Pottschmidt, Brian Ramsey, Christopher Reynolds, Helen Russell, Samar Safi-Harb, Shinya Saito, Shin-ichiro Sakai, Kazuhiro Sakai, Hiroaki Sameshima, Toru Sasaki, Goro Sato, Yoichi Sato, Kosuke Sato, Rie Sato, Makoto Sawada, Norbert Schartel, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Łukasz Stawarz, Yasuharu Sugawara, Hiroyuki Sugita, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Shin'ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yasunobu Uchiyama, Hideki Uchiyama, Yoshihiro Ueda, Shutaro Ueda, Shiro Ueno, Shin'ichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Tomomi Watanabe, Norbert Werner, Daniel Wik, Dan Wilkins, Brian Williams, Takahiro Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Irina Zhuravleva, Abderahmen Zoghbi

Proceedings Volume 9905, 99050U (2016) https://doi.org/10.1117/12.2232379

KEYWORDS: X-rays, X-ray astronomy, Sensors, Satellites, X-ray telescopes, Space operations, Physics, Space telescopes, Aerospace engineering, Calibration

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Proceedings Article | 20 July 2016 Paper

Transition-edge sensor pixel parameter design of the microcalorimeter array for the x-ray integral field unit on Athena

S. Smith, M. Eckart, F. Finkbeiner, G. Betancourt-Martinez, R. Kelley, D. Swetz, J. Adams, S. Bandler, J. Chervenak, M. Chiao, C. Kilbourne, F. Porter, J. Sadleir, E. Wassell, W. Yoon, J. Ullom, W. Doriese, D. Bennett, H. Akamatsu, L. Gottardi, B. Jackson, J. van der Kuur, R. den Hartog, D. Barret, P. Peille, G. Hilton, J. Fowler, K. Morgan, C. Pappas, N. Wakeham, K. Sakai, A. Miniussi, C. Reintsema, K. Irwin

Proceedings Volume 9905, 99052H (2016) https://doi.org/10.1117/12.2231749

KEYWORDS: X-rays, Sensors, Multiplexing, Sensors, Staring arrays, Cryogenics, Helium, Magnetism, Photons, Temperature metrology, Resistance

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Proceedings Article | 19 July 2016 Paper

In-flight performance of the Soft X-ray Spectrometer detector system on Astro-H

Megan Eckart, Richard Kelley, Maurice Leutenegger, Makoto Sawada, Frederick Porter, Kevin Boyce, Meng Chiao, Caroline Kilbourne, Gary Sneiderman, Tomomi Watanabe, Dan McCammon, Andrew Szymkowiak, Ryuichi Fujimoto, Yoh Takei, Masahiro Tsujimoto, Makoto Tashiro, Yoshitaka Ishisaki, Kazuhisa Mitsuda, Shinya Yamada, Kosuke Sato, Hiromi Seta

Proceedings Volume 9905, 99050W (2016) https://doi.org/10.1117/12.2232799

KEYWORDS: Sensors, X-rays, X-ray detectors, Spectroscopy, Space operations, Cryocoolers, Temperature metrology, Vibration isolation, Fermium, Frequency modulation

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Proceedings Article | 19 July 2016 Paper

Cryogen-free operation of the Soft X-ray Spectrometer instrument

Hirofumi Noda, Seiji Yoshida, Dan McCammon, Andrew Szymkowiak, Gary Sneiderman, Thomas Bialas, Kevin Boyce, Meng Chiao, Michael DiPirro, Megan Eckart, Leslie Hartz, Richard Kelley, Caroline Kilbourne, Candace Masters, Frederick Porter, Peter Shirron, Kazuhisa Mitsuda, Ryuichi Fujimoto, Yoh Takei, Masahiro Tsujimoto, Yoshitaka Ishisaki

Proceedings Volume 9905, 99053N (2016) https://doi.org/10.1117/12.2232045

KEYWORDS: Sensors, X-rays, Spectroscopy, Gold, Silicon, Phase modulation, Resistance, Particles, Epoxies, Physics

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Proceedings Article | 19 July 2016 Paper

Development of x-ray microcalorimeter imaging spectrometers for the X-ray Surveyor mission concept

Simon Bandler, Joseph Adams, James Chervenak, Megan Eckart, Fred Finkbeiner, Richard Kelley, Caroline Kilbourne, Frederick Porter, John Sadleir, Stephen Smith, Thomas Stevenson, Wonsik Yoon, Dan Becker, Edward Wassell, Douglas Bennett, William Doriese, Gene Hilton, Benjamin Mates, Carl Reintsema, Daniel Swetz, Joel Ullom, Kent Irwin, Sang-Jun Lee, Alexey Vikhlinin, Johnathan Gard, Aaron Datesman, Gabriele Betancourt-Martinez, Antoine Miniussi, Kazuhiro Sakai, Nicholas Wakeham, Joseph Fowler, Kelsey Morgan, Saptarshi Chaudhuri

Proceedings Volume 9905, 99050Q (2016) https://doi.org/10.1117/12.2232156

KEYWORDS: Sensors, X-rays, Tantalum, Superconductors, Computer aided design, Silver, Matrices, Field effect transistors, Electronics, Spectral resolution

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Proceedings Article | 18 July 2016 Paper

Performance of the helium dewar and cryocoolers of ASTRO-H SXS

Ryuichi Fujimoto, Yoh Takei, Kazuhisa Mitsuda, Noriko Yamasaki, Masahiro Tsujimoto, Hiroyuki Sugita, Yoichi Sato, Keisuke Shinozaki, Atsushi Okamoto, Kosuke Sato, Yuichiro Ezoe, Yoshitaka Ishisaki, Takaya Ohashi, Toru Tamagawa, Hirofumi Noda, Makoto Sawada, Kenichi Kanao, Seiji Yoshida, Shoji Tsunematsu, Katsuhiro Narasaki, Shu Koyama, Kumi Ishikawa, Shinya Yamada, Hiromi Seta, Makoto Tashiro, Yoichi Yatsu, Ikuyuki Mitsuishi, Caroline Kilbourne, F. Scott Porter, Meng Chiao, Shunji Kitamoto, Akio Hoshino, Mikio Miyaoka, Kiyomi Otsuka, Michael DiPirro, Peter Shirron, Gary Sneiderman, Richard Kelley, Megan Eckart

Proceedings Volume 9905, 99053S (2016) https://doi.org/10.1117/12.2232933

KEYWORDS: Cryocoolers, Helium, X-rays, Sensors, Spectroscopy, Cryocoolers, Satellites, Contamination, X-ray telescopes, Space telescopes, X-ray imaging

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Proceedings Article | 18 July 2016 Paper

In-flight performance of pulse processing system of the ASTRO-H soft x-ray spectrometer

Yoshitaka Ishisaki, Masahiro Tsujimoto, Makoto Sawada, Kevin Boyce, Meng Chiao, Tomomi Watanabe, Megan Eckart, Maurice Leutenegger, F. Scott Porter, Caroline Kilbourne, Richard Kelley, Yukikatsu Terada, Yuka Kato, Shu Koyama, Shinya Yamada, Hiromi Seta, Makoto Tashiro, Sawako Takeda, Kazuhisa MItsuda

Proceedings Volume 9905, 99053T (2016) https://doi.org/10.1117/12.2234222

KEYWORDS: X-rays, Spectroscopy, Digital signal processing, Sensors, Field programmable gate arrays, Space operations, Calibration, Electroluminescence, Optimal filtering, Satellites

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Proceedings Article | 18 July 2016 Paper

The design, implementation, and performance of the Atro-H SXS calorimeter array and anti-coincidence detector

Caroline Kilbourne, Christoph Grein, Joseph Adams, Regis Brekosky, James Chervenak, Meng Chiao, Megan Eckart, Massimiliano Galeazzi, Enectali Figueroa-Feliciano, Christine Jhabvala, Richard Kelley, Daniel Kelly, Maurice Leutenegger, F. Porter, Tomomi Watanabe, Dan McCammon, Andrew Szymkowiak, Jun Zhao

Proceedings Volume 9905, 99053L (2016) https://doi.org/10.1117/12.2231415

KEYWORDS: Sensors, X-rays, Detector arrays, X-rays, Detector arrays, Helium, Liquids, Cryocoolers, Switches, Observatories, X-ray telescopes, Cryogenics

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Proceedings Article | 18 July 2016 Paper

In-orbit operation of the ASTRO-H SXS

Masahiro Tsujimoto, Kevin Boyce, Gregory Brown, Meng Chiao, Elisa Costantini, Jan-Willem den Herder, Cor de Vries, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Daniel Haas, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Naoko Iyomoto, Caroline Kilbourne, Shunji Kitamoto, Maurice Leutenegger, Hiroshi Murakami, Masahide Murakami, Mina Ogawa, Naomi Ota, Stéphane Paltani, Frederick Porter, Makoto Sawada, Yoichi Yatsu, Kazuhisa Mitsuda, Richard Kelley, Hiroki Akamatsu, Dan McCammon, Ikuyuki Mitsuishi, Kosuke Sato, Yoichi Sato, Hiromi Seta, Keisuke Shinozaki, Hiroyuki Sugita, Andrew Szymkowiak, Yoh Takei, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Shinya Yamada, Noriko Yamasaki, Shu Koyama, Thomas Bialas, Peter Shirron, Michael DiPirro, Gary Sneiderman, Hirofumi Noda

Proceedings Volume 9905, 99050Y (2016) https://doi.org/10.1117/12.2231784

KEYWORDS: X-rays, Spectroscopy, Satellites, Sensors, Space operations, Lithium, Field effect transistors, Calibration, Satellite communications, Single crystal X-ray diffraction

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Proceedings Article | 11 July 2016 Paper

The design, implementation, and performance of the Astro-H SXS aperture assembly and blocking filters

Caroline Kilbourne, Joseph Adams, Petar Arsenovic, Meng Chiao, Megan Eckart, John Kazeva, Richard Kelley, Maurice Leutenegger, Daniel McGuinness, Samuel Moseley, F. Porter, Kari Kripps, Dan McCammon, Andrea Schweiss, Rosemary Thorpe, Tomomi Watanabe, Travis Ayers, Heidi Lopez, Bruce Lairson, Ryuichi Fujimoto, Yoh Takei, Kazuhisa Mitsuda, Noriko Yamasaki, Seiji Yoshida, Michael Dipirro

Proceedings Volume 9905, 99053Q (2016) https://doi.org/10.1117/12.2232240

KEYWORDS: X-rays, Field effect transistors, Sensors, Resistors, Calibration, Lead, Gold, Helium, Epoxies, Connectors

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Proceedings Article | 11 July 2016 Paper

Vibration isolation system for cryocoolers of Soft X-ray Spectrometer (SXS) onboard ASTRO-H (Hitomi)

Susumu Yasuda, Kosei Ishimura, Naoko Iwata, Atsushi Okamoto, Yoichi Sato, Mina Ogawa, Makoto Sawada, Taro Kawano, Shingo Obara, Chikara Natsukari, Ryuichi Fujimoto, Noriko Yamasaki, Kazuhisa Mitsuda, Seiji Yoshida, Kenichi Kanao, Katsuhiro Narasaki, Yoh Takei, Atsushi Wada, Shinya Yamada, Motohide Kokubun, Hiroyuki Sugita, Kenji Minesugi, Yasuo Nakamura, Tadayuki Takahashi, Shoji Tsunematsu, Kiyomi Otsuka, Richard Kelley, F. Porter, Caroline Kilbourne, Meng Chiao, Megan Eckart, Gary Sneiderman, James Pontius, Paul Wilke, John Basile, Dan McCammon

Proceedings Volume 9905, 99050X (2016) https://doi.org/10.1117/12.2231832

KEYWORDS: Vibration isolation, Sensors, Cryocoolers, X-rays, Spectroscopy, X-rays, Space operations, Temperature metrology, Fermium, Frequency modulation, Head

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Proceedings Article | 25 September 2014 Paper

The transition-edge EBIT microcalorimeter spectrometer

James Chervenak, Randy Doriese, Kent Irwin, Gabriele Betancourt-Martinez, Joseph Adams, Simon Bandler, Peter Beiersdorfer, Gregory Brown, Megan Eckart, Richard Kelley, Caroline Kilbourne, Maurice Leutenegger, F. Porter, Carl Reintsema, Stephen Smith, Joel Ullom

Proceedings Volume 9144, 91443U (2014) https://doi.org/10.1117/12.2055568

KEYWORDS: Transmission electron microscopy, Spectroscopy, Ions, Sensors, Electron beams, X-rays, Image resolution, Multiplexing, Time division multiplexing, Superconductors

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Proceedings Article | 24 July 2014 Paper

Soft x-ray spectrometer (SXS): the high-resolution cryogenic spectrometer onboard ASTRO-H

Yoh Takei, Kazuhisa Mitsuda, Richard Kelley, Hiroki Akamatsu, Kevin Boyce, Gregory Brown, Meng Chiao, Elisa Costantini, Jan-Willem den Herder, Cor de Vries, Megan Eckart, Yuichiro Ezoe, Ryuichi Fujimoto, Daniel Haas, Akio Hoshino, Kumi Ishikawa, Yoshitaka Ishisaki, Naoko Iyomoto, Caroline Kilbourne, Shunji Kitamoto, Saori Konami, Maurice Leutenegger, Dan McCammon, Ikuyuki Mitsuishi, Hiroshi Murakami, Masahide Murakami, Mina Ogawa, Takaya Ohashi, Atsushi Okamoto, Naomi Ota, F. Scott Porter, Kosuke Sato, Yoichi Sato, Stéphane Paltani, Makoto Sawada, Hiromi Seta, Hiroyuki Sugita, Andrew Szymkowiak, Toru Tamagawa, Makoto Tashiro, Yukikatsu Terada, Masahiro Tsujimoto, Shinya Yamada, Noriko Yamasaki, Thomas Bialas, Edgar Canavan, Michael DiPirro, Mark Kimball, Joseph Miko, Hirofumi Noda, Peter Shirron, Gary Sneiderman, Keisuke Shinozaki

Proceedings Volume 9144, 91442A (2014) https://doi.org/10.1117/12.2057199

KEYWORDS: X-rays, Fermium, Frequency modulation, Spectroscopy, Optical isolators, Sensors, Cryogenics, X-ray detectors, Image resolution, Calibration

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Proceedings Article | 17 September 2012 Paper

Update on the Micro-X Sounding Rocket payload

J. Adams, R. Baker, S. Bandler, D. Dewey, W. Doriese, M. Eckart, R. Hamersma, G. Hilton, U. Hwang, K. Irwin, R. Kelley, C. Kilbourne, S. Kissel, S. Leman, D. McCammon, P. H. Oakley, T. Okajima, R. O'Neal, R. Petre, F. Porter, C. Reintsema, J. Rutherford, T. Saab, P. Serlemitsos, Y. Soong, S. Trowbridge, P. Wikus, E. Figueroa-Feliciano

Proceedings Volume 8443, 84431B (2012) https://doi.org/10.1117/12.927167

KEYWORDS: Sensors, X-rays, Rockets, Mirrors, Silicon, Signal to noise ratio, Data modeling, Electronics, Plasma, Detector arrays

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Proceedings Article | 17 September 2012 Paper

The ASTRO-H X-ray Observatory

Teruaki Enoto, Yuichiro Ezoe, Andrew Fabian, Carlo Ferrigno, Adam Foster, Ryuichi Fujimoto, Yasushi Fukazawa, Stefan Funk, Akihiro Furuzawa, Philippe Laurent, Francois Lebrun, Maurice Leutenegger, Olivier Limousin, Knox Long, Michael Loewenstein, David Lumb, Grzegorz Madejski, Yoshitomo Maeda, Kazuo Makishima, Genevieve Marchand, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, Jon Miller, Eric Miller, Shin Mineshige, Kenji Minesugi, Ikuyuki Mitsuishi, Takuya Miyazawa, Tsunefumi Mizuno, Hideyuki Mori, Koji Mori, Koji Mukai, Toshio Murakami, Hiroshi Murakami, Richard Mushotzky, Hosei Nagano, Ryo Nagino, Takao Nakagawa, Hiroshi Nakajima, Takeshi Nakamori, Kazuhiro Nakazawa, Yoshiharu Namba, Chikara Natsukari, Yusuke Nishioka, Masayoshi Nobukawa, Masaharu Nomachi, Steve O'Dell, Hirokazu Odaka, Hiroyuki Ogawa, Mina Ogawa, Keiji Ogi, Takaya Ohashi, Masanori Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Tsuyoshi Okazaki, Naomi Ota, Masanobu Ozaki, Fritzs Paerels, Stéphane Paltani, Arvind Parmar, Robert Petre, Martin Pohl, F. Scott Porter, Brian Ramsey, Rubens Reis, Christopher Reynolds, Helen Russell, Samar Safi-Harb, Shin-ichiro Sakai, Hiroaki Sameshima, Jeremy Sanders, Goro Sato, Yohichi Sato, Kosuke Sato, Makoto Sawada, Peter Serlemitsos, Hiromi Seta, Yasuko Shibano, Maki Shida, Takanobu Shimada, Keisuke Shinozaki, Peter Shirron, Aurora Simionescu, Cynthia Simmons, Randall Smith, Gary Sneiderman, Yang Soong, Lukasz Stawarz, Yasuharu Sugawara, Henri Aarts, Felix Aharonian, Hiroki Akamatsu, Fumie Akimoto, Steve Allen, Naohisa Anabuki, Lorella Angelini, Keith Arnaud, Makoto Asai, Marc Audard, Hisamitsu Awaki, Philipp Azzarello, Aya Bamba, Nobutaka Bando, Mark Bautz, Roger Blandford, Kevin Boyce, Greg Brown, Mara Chernyakova, Paolo Coppi, Elisa Costantini, Jelle de Plaa, Jan-Willem den Herder, Michael DiPirro, Chris Done, Tadayasu Dotani, John Doty, Ken Ebisawa, Megan Eckart, Massimiliano Galeazzi, Luigi Gallo, Poshak Gandhi, Keith Gendreau, Kirk Gilmore, Daniel Haas, Yoshito Haba, Kenji Hamaguchi, Isamu Hatsukade, Takayuki Hayashi, Kiyoshi Hayashida, Junko Hiraga, Kazuyuki Hirose, Ann Hornschemeier, Akio Hoshino, John Hughes, Una Hwang, Ryo Iizuka, Yoshiyuki Inoue, Kazunori Ishibashi, Manabu Ishida, Kosei Ishimura, Yoshitaka Ishisaki, Masayuki Ito, Naoko Iwata, Naoko Iyomoto, Jelle Kaastra, Timothy Kallman, Tuneyoshi Kamae, Jun Kataoka, Satoru Katsuda, Hajime Kawahara, Madoka Kawaharada, Shigeo Kawasaki, Caroline Kilbourne, Masashi Kimura, Kenzo Kinugasa, Shunji Kitamoto, Tetsu Kitayama, Takayoshi Kohmura, Motohide Kokubun, Tatsuro Kosaka, Alex Koujelev, Katsuji Koyama, Hans Krimm, Aya Kubota, Hideyo Kunieda, Stephanie LaMassa, Hiroyuki Sugita, Satoshi Sugita, Andrew Szymkowiak, Hiroyasu Tajima, Hiromitsu Takahashi, Shin-ichiro Takeda, Yoh Takei, Toru Tamagawa, Takayuki Tamura, Keisuke Tamura, Takaaki Tanaka, Yasuo Tanaka, Makoto Tashiro, Yuzuru Tawara, Yukikatsu Terada, Yuichi Terashima, Francesco Tombesi, Hiroshi Tomida, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Yasunobu Uchiyama, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Meg Urry, Eugenio Ursino, Cor de Vries, Atsushi Wada, Shin Watanabe, Norbert Werner, Nicholas White, Takahiro Yamada, Shinya Yamada, Hiroya Yamaguchi, Noriko Yamasaki, Shigeo Yamauchi, Makoto Yamauchi, Yoichi Yatsu, Daisuke Yonetoku, Atsumasa Yoshida, Takayuki Yuasa, Chris Baluta, Ed Cackett, Nobuyuki Kawai, Dmitry Khangaluyan, Rie Sato, Shiro Ueno, Tadayuki Takahashi, Richard Kelley, Kazuhisa Mitsuda

Proceedings Volume 8443, 84431Z (2012) https://doi.org/10.1117/12.926190

KEYWORDS: Sensors, X-rays, Hard x-rays, X-ray telescopes, Physics, X-ray astronomy, Iron, Spectroscopy, X-ray imaging, Galaxy groups and clusters

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Proceedings Article | 30 July 2010 Paper

High-spectral resolution high-cadence imaging x-ray microcalorimeters for solar physics

Richard Kelley, Randall Smith, Jay Chervenak, John Sadleir, Fred Finkbeiner, Edward DeLuca, Frederick Porter, Caroline Kilbourne, Simon Bandler, Catherine Bailey, Jay Bookbinder, Daniel Kelley, Stephen Smith, Megan Eckart

Proceedings Volume 7732, 773238 (2010) https://doi.org/10.1117/12.857783

KEYWORDS: X-rays, Sensors, Solar processes, Plasma, Image resolution, Solar energy, Gold, Imaging spectroscopy, Rockets, X-ray imaging

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Proceedings Article | 29 July 2010 Paper

Progress on the Micro-X sounding rocket x-ray telescope: completion of flight hardware

J. Rutherford, C. Reintsema, D. Dewey, M. Eckart, T. Okajima, R. O'Neal, S. Trowbridge, J. Adams, S. Leman, C. Kilbourne, K. Irwin, K. Sato, E. Figueroa-Feliciano, R. Hamersma, W. Doriese, S. Bandler, F. Porter, W. Brys, U. Hwang, G. Hilton, T. Saab, R. Kelley, Y. Soong, P. Serlemitsos, R. Baker, R. Goeke, P. Wikus, D. McCammon

Proceedings Volume 7732, 77321P (2010) https://doi.org/10.1117/12.857034

KEYWORDS: X-rays, Mirrors, Sensors, Rockets, Silicon, Cryogenics, Aluminum, X-ray telescopes, Space telescopes, Calibration

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Proceedings Article | 29 July 2010 Paper

The x-ray microcalorimeter spectrometer onboard of IXO

G. Torrioli, M. Eckart, F. Porter, L. Piro, M. Bruin, S. Paltani, G. Hilton, Y. Ishisaki, J. W. den Herder, M. DiPirro, A. Kashani, J. van der Kuur, H. van Weers, P. de Korte, R. Kelley, H. Hoevers, P. Shirron, P. Bastia, L. Ferrari, K. Irwin, W. B. Doriese, J. H. Nieland, S. Smith, Y. Takei, K. Boyce, T. Mineo, K. Gendreau, K. Mitsuda, E. Perinati, M. Tsujimoto, L. Colasanti, N. Yamasaki, M. Tashiro, R. den Hartog, S. Bandler, T. Ohashi, Y. Ezoe, R. Fujimoto, E. Figueroa-Feliciano, C. Kilbourne, L. Gottardi, F. Gatti, J. Chervenak, C. Macculi

Proceedings Volume 7732, 77321H (2010) https://doi.org/10.1117/12.856018

KEYWORDS: Sensors, X-rays, Image resolution, Magnetism, Spectroscopy, Spectral resolution, Multiplexing, Cooling systems, Magnetic sensors, Optical filters

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Proceedings Article | 15 July 2008 Paper

Development of arrays of position-sensitive microcalorimeters for Constellation-X

Caroline Kilbourne, Megan Eckart, Fred Finkbeiner, John Sadleir, Stephen Smith, James Chervenak, Enectali Figueroa-Feliciano, Richard Kelley, Ari-D. Brown, Regis Brekosky, F. Scott Porter, Simon Bandler

Proceedings Volume 7011, 701126 (2008) https://doi.org/10.1117/12.790100

KEYWORDS: Image resolution, Semiconducting wafers, Sensors, Tellurium, Gold, X-rays, Composites, Bismuth, Optimal filtering, Silicon

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Proceedings Article | 14 July 2008 Paper

Multiplexed readout of uniform arrays of TES x-ray microcalorimeters suitable for Constellation-X

W. Bertrand Doriese, Kent Irwin, Joel Ullom, Richard Kelley, Stephen Smith, Naoko Iyomoto, Megan Eckart, Gene Hilton, Ari-David Brown, James Chervenak, F. Scott Porter, Regis Brekosky, Caroline Kilbourne, Carl Reintsema, Simon Bandler, Fred Finkbeiner

Proceedings Volume 7011, 701104 (2008) https://doi.org/10.1117/12.790027

KEYWORDS: Sensors, Multiplexing, Multiplexers, Image resolution, X-rays, Superconductors, Terbium, Signal to noise ratio, Inductance, Staring arrays

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Following our development of a superconducting transition-edge-sensor (TES) microcalorimeter design that en- ables reproducible, high performance (routinely better than 3 eV FWHM energy resolution at 6 keV) and is compatible with high-fill-factor arrays, we have directed our efforts towards demonstrating arrays of identical pixels using the multiplexed read-out concept needed for instrumenting the Constellation-X X-ray Microcalorime- ter Spectrometer (XMS) focal plane array. We have used a state-of-the-art, time-division SQUID multiplexer system to demonstrate 2 ×8 multiplexing (16 pixels read out with two signal channels) with an acceptably modest level of degradation in the energy resolution. The average resolution for the 16 multiplexed pixels was 2.9 eV, and the distribution of resolution values had a relative standard deviation of 5%. The performance of the array while multiplexed is well understood. The technical path to realizing multiplexing for the XMS instrument on the scale of 32 pixels per signal channel includes increasing the system bandwidth by a factor of four and reducing the non-multiplexed SQUID noise by a factor of two. In this paper we discuss the characteristics of a uniform 8 ×8 array and its performance when read out non- multiplexed and with various degrees of multiplexing. We present data acquired through the readout chain from the multiplexer electronics, through the real-time demultiplexer software, to storage for later signal processing. We also report on a demonstration of real-time data processing. Finally, because the multiplexer provides unprecedented simultaneous access to the pixels of the array, we were able to measure the array-scale uniformity of TES calorimeter parameters such as the individual thermal conductances and superconducting transition temperatures of the pixels. Detector uniformity is essential for optimal operation of a multiplexed array, and we found that the distributions of thermal conductances, transition temperatures, and transition slopes were sufficiently tight to avoid significant compromises in the operation of any pixel.

Showing 5 of 65 publications

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