System design and implementation of the detector assembly of the Astro-H soft x-ray spectrometer

Meng P. Chiao; Joseph S. Adams; Phillip A. Goodwin; Clair W. Hobson; Caroline A. Kilbourne; Daniel McCammon; Daniel S. McGuinness; Samuel J. Moseley; Frederick S. Porter; Sandy A. Shuman; Tomomi Watanabe

doi:10.1117/1.JATIS.4.2.021404

19 March 2018 System design and implementation of the detector assembly of the Astro-H soft x-ray spectrometer

Meng P. Chiao, Joseph S. Adams, Phillip A. Goodwin, Clair W. Hobson, Caroline A. Kilbourne, Daniel McCammon, Daniel S. McGuinness, Samuel J. Moseley, Frederick S. Porter, Sandy A. Shuman, Tomomi Watanabe

Author Affiliations +

Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 4, Issue 2, 021404 (March 2018). https://doi.org/10.1117/1.JATIS.4.2.021404

Abstract

The soft x-ray spectrometer (SXS) on-board Astro-H presents to the science community unprecedented capability (<7 eV full width half max at 6 keV) for high-resolution spectral measurements in the range of 0.5 to 12 keV to study extended celestial sources. At the heart of the SXS is the x-ray calorimeter spectrometer (XCS) where detectors (calorimeter array and anticoincidence detector) operate at 50 mK, the bias circuit operates at nominal 1.3 K, and the first stage amplifiers operate at 130 K, all within a nominal 20-cm envelope. The design of the detector assembly (DA) in the XCS originates from the Astro-E x-ray spectrometer (XRS) and lessons learned from Astro-E and Suzaku. After the production of our engineering model, additional changes were made to improve our flight assembly process for better reliability and overall performance. We present the final design and implementation of the flight DA, compare its parameters and performance with Suzaku’s XRS, and list susceptibilities to other subsystems as well as our lessons learned.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

Citation Download Citation

Meng P. Chiao, Joseph S. Adams, Phillip A. Goodwin, Clair W. Hobson, Caroline A. Kilbourne, Daniel McCammon, Daniel S. McGuinness, Samuel J. Moseley, Frederick S. Porter, Sandy A. Shuman, and Tomomi Watanabe "System design and implementation of the detector assembly of the Astro-H soft x-ray spectrometer," Journal of Astronomical Telescopes, Instruments, and Systems 4(2), 021404 (19 March 2018). https://doi.org/10.1117/1.JATIS.4.2.021404

Received: 29 July 2017; Accepted: 20 February 2018; Published: 19 March 2018

ACCESS THE FULL ARTICLE

JOURNAL ARTICLE
16 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY