Mr. Ramon L. Galvez Profile

Ramon L. Galvez

Electrical Engineer at Gemini Observatory

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 27 July 2016 Paper

Characterizing the vibration environments of the Gemini telescopes

T. Hayward, M. Rippa, H. Bonnet, C. Cavedoni, R. Galvez, G. Gausachs, M. Cho

Proceedings Volume 9906, 99065N (2016) https://doi.org/10.1117/12.2232140

KEYWORDS: Cryocoolers, Mirrors, Telescopes, Gemini Observatory, Adaptive optics, Cryocoolers, Gemini Planet Imager, Mirrors, Fluctuations and noise, Chromium, Ions, Sensors

Read Abstract +

Proceedings Article | 7 August 2014 Paper

The Gemini planet imager: first light and commissioning

Bruce Macintosh, Andre Anthony, Jenny Atwood, Brian Bauman, Andrew Cardwell, Kris Caputa, Jeffery Chilcote, Robert De Rosa, Daren Dillon, René Doyon, Jennifer Dunn, Darren Erickson, Michael Fitzgerald, Donald Gavel, Ramon Galvez, Stephen Goodsell, James Graham, Alexandra Greenbaum, Markus Hartung, Pascale Hibon, Patrick Ingraham, Dan Kerley, Quinn Konopacky, Kathleen Labrie, James Larkin, Jerome Maire, Franck Marchis, Christian Marois, Max Millar-Blanchaer, Katie Morzinski, Arturo Nunez, Rebecca Oppenheimer, David Palmer, John Pazder, Marshall Perrin, Lisa Poyneer, Laurent Pueyo, Carlos Quiroz, Fredrik Rantakyro, Vlad Reshetov, Les Saddlemyer, Naru Sadakuni, Dmitry Savransky, Andrew Serio, Anand Sivaramakrishnan, Malcolm Smith, Remi Soummer, Sandrine Thomas, J. Wallace, Jason Wang, Jason Weiss, Sloane Wiktorowicz, Schuyler Wolff

Proceedings Volume 9148, 91480J (2014) https://doi.org/10.1117/12.2056709

KEYWORDS: Gemini Planet Imager, Adaptive optics, Stars, Coronagraphy, Telescopes, Gemini Observatory, Calibration, Wavefront sensors, Planets, Iterated function systems

Read Abstract +

Proceedings Article | 7 August 2014 Paper

On-sky vibration environment for the Gemini Planet Imager and mitigation effort

Markus Hartung, Tom Hayward, Les Saddlemyer, Lisa Poyneer, Andrew Cardwell, Chas Cavedoni, Myung Cho, Jeffrey Chilcote, Paul Collins, Daren Dillon, Ramon Galvez, Gaston Gausachs, Stephen Goodsell, Andrés Guesalaga, Pascale Hibon, James Larkin, Bruce Macintosh, Dave Palmer, Naru Sadakuni, Dmitry Savransky, Andrew Serio, Fredrik Rantakyrö, Kent Wallace

Proceedings Volume 9148, 91480N (2014) https://doi.org/10.1117/12.2057200

KEYWORDS: Gemini Planet Imager, Telescopes, Cryocoolers, Sensors, Mirrors, Gemini Observatory, Wavefronts, Adaptive optics, Observatories, Iterated function systems

Read Abstract +

Proceedings Article | 7 August 2014 Paper

Life with quintuplets: transitioning GeMS into regular operations

Vincent Garrel, Marcos Van Dam, Benoît Neichel, Fabrice Vidal, Gaetano Sivo, Eduardo Marin, Vanessa Montes, Andrew Serio, Gustavo Arriagada, Chadwick Trujillo, William Rambold, Pedro Gigoux, Ramon Galvez, Cristian Moreno, Constanza Araujo Hauck, Tomislav Vucina Parga, Jeff Donahue, Claudio Marchant, Gaston Gausachs, Fabian Collao, Eleazar Carrasco Damele, Peter Pessev, Ariel Lopez

Proceedings Volume 9148, 914829 (2014) https://doi.org/10.1117/12.2056378

KEYWORDS: Adaptive optics, Stars, Gemini Observatory, Telescopes, Wavefront sensors, Electroluminescent displays, Laser guide stars, Actuators, K band, Software development

Read Abstract +

The Gemini Multi-conjugate adaptive optics System (GeMS) at the Gemini South telescope in Cerro Pachon is the first sodium Laser Guide Star (LGS) adaptive optics (AO) system with multiple guide stars. It uses five LGSs and two deformable mirrors (DMs) to measure and compensate for distortions induced by atmospheric turbulence. After its 2012 commissioning phase, it is now transitioning into regular operations. Although GeMS has unique scientific capabilities, it remains a challenging instrument to maintain, operate and upgrade. In this paper, we summarize the latest news and results. First, we describe the engineering work done this past year, mostly during our last instrument shutdown in 2013 austral winter, covering many subsystems: an erroneous reconjugation of the Laser guide star wavefront sensor, the correction of focus field distortion for the natural guide star wavefront sensor and engineering changes dealing with our laser and its beam transfer optics. We also describe our revamped software, developed to integrate the instrument into the Gemini operational model, and the new optimization procedures aiming to reduce GeMS time overheads. Significant software improvements were achieved on the acquisition of natural guide stars by our natural guide star wavefront sensor, on the automation of tip-tilt and higher-order loop optimization, and on the tomographic non-common path aberration compensation. We then go through the current operational scheme and present the plan for the next years. We offered 38 nights in our last semester. We review the current system efficiency in term of raw performance, completed programs and time overheads. We also present our current efforts to merge GeMS into the Gemini base facility project, where night operations are all reliably driven from our La Serena headquarter, without the need for any spotter. Finally we present the plan for the future upgrades, mostly dedicated toward improving the performance and reliability of the system. Our first upgrade called NGS2, a project lead by the Australian National University, based a focal plane camera will replace the current low throughput natural guide wavefront sensor. On a longer term, we are also planning the (re-)integration of our third deformable mirror, lost during the early phase of commissioning. Early plans to improve the reliability of our laser will be presented.

Proceedings Article | 6 August 2014 Paper

Gemini planet imager integration to the Gemini South telescope software environment

Fredrik Rantakyrö, Andrew Cardwell, Jeffrey Chilcote, Jennifer Dunn, Stephen Goodsell, Pascale Hibon, Bruce Macintosh, Carlos Quiroz, Marshall Perrin, Naru Sadakuni, Leslie Saddlemyer, Dmitry Savransky, Andrew Serio, Claudia Winge, Ramon Galvez, Gaston Gausachs, Kayla Hardie, Markus Hartung, Javier Luhrs, Lisa Poyneer, Sandrine Thomas

Proceedings Volume 9149, 91492B (2014) https://doi.org/10.1117/12.2055654

KEYWORDS: Gemini Planet Imager, Telescopes, Gemini Observatory, Control systems, Adaptive optics, Iterated function systems, Calibration, Human-machine interfaces, Databases, Logic

Read Abstract +

Proceedings Article | 10 July 2014 Paper

Characterization of the atmospheric dispersion corrector of the Gemini planet imager

Pascale Hibon, Sandrine Thomas, Jennifer Dunn, Jennifer Atwood, Leslie Saddlemyer, Naru Sadakuni, Stephen Goodsell, Bruce Macintosh, James Graham, Marshall Perrin, Fredrik Rantakyro, Vincent Fesquet, Andrew Serio, Carlos Quiroz, Andrew Cardwell, Gaston Gausachs, Dmitry Savransky, Dan Kerley, Markus Hartung, Ramon Galvez, Kayla Hardie

Proceedings Volume 9147, 91474U (2014) https://doi.org/10.1117/12.2055545

KEYWORDS: Gemini Planet Imager, Prisms, Telescopes, Zemax, Gemini Observatory, Coronagraphy, Stars, Solids, Refraction, Data modeling

Read Abstract +

Proceedings Article | 25 September 2012 Paper

Science readiness of the Gemini MCAO System: GeMS

Benoit Neichel, Franҫois Rigaut, Andrew Serio, Gustavo Arriagada, Maxime Boccas, Céline d'Orgeville, Vincent Fesquet, Chadwick Trujillo, William Rambold, Ramon Galvez, Gaston Gausachs, Tomislav Vucina, Vanessa Montes, Cristian Urrutia, Cristian Moreno, Sarah Diggs, Claudio Araya, Javier Lührs, Gelys Trancho, Matthieu Bec, Claudio Marchant, Fabian Collao, Eleazar Carrasco, Michelle Edwards, Peter Pessev, Ariel Lopez, Herman Diaz

Proceedings Volume 8447, 84474Q (2012) https://doi.org/10.1117/12.925285

KEYWORDS: Telescopes, Stars, Electroluminescent displays, Gemini Observatory, Adaptive optics, Sensors, Mirrors, Observatories, Beam splitters, Turbulence

Read Abstract +

Proceedings Article | 24 September 2012 Paper

The Gemini Planet Imager: integration and status

Bruce Macintosh, Andre Anthony, Jennifer Atwood, Nicolas Barriga, Brian Bauman, Kris Caputa, Jeffery Chilcote, Daren Dillon, René Doyon, Jennifer Dunn, Donald Gavel, Ramon Galvez, Stephen Goodsell, James Graham, Markus Hartung, Joshua Isaacs, Dan Kerley, Quinn Konopacky, Kathleen Labrie, James Larkin, Jerome Maire, Christian Marois, Max Millar-Blanchaer, Arturo Nunez, Ben Oppenheimer, David Palmer, John Pazder, Marshall Perrin, Lisa Poyneer, Carlos Quirez, Frederik Rantakyro, Vlad Reshtov, Leslie Saddlemyer, Naru Sadakuni, Dmitry Savransky, Anand Sivaramakrishnan, Malcolm Smith, Remi Soummer, Sandrine Thomas, J. Kent Wallace, Jason Weiss, Sloane Wiktorowicz

Proceedings Volume 8446, 84461U (2012) https://doi.org/10.1117/12.926721

KEYWORDS: Gemini Planet Imager, Adaptive optics, Iterated function systems, Actuators, Wavefronts, Sensors, Microelectromechanical systems, Coronagraphy, Planets, Stars

Read Abstract +

Proceedings Article | 13 September 2012 Paper

Science readiness of the Gemini MCAO system: GeMS

Benoit Neichel, François Rigaut, Andrew Serio, Gustavo Arriagada, Maxime Boccas, Céline d'Orgeville, Vincent Fesquet, Chadwick Trujillo, William Rambold, Ramon Galvez, Gaston Gausachs, Tomislav Vucina, Vanessa Montes, Cristian Urrutia, Cristian Moreno, Sarah Diggs, Claudio Araya, Javier Lührs, Gelys Trancho, Matthieu Bec, Claudio Marchant, Fabian Collao, Eleazar Carrasco, Michelle Edwards, Peter Pessev, Ariel Lopez, Hernan Diaz

Proceedings Volume 8447, 84470W (2012) https://doi.org/10.1117/12.925915

KEYWORDS: Telescopes, Stars, Electroluminescent displays, Gemini Observatory, Adaptive optics, Sensors, Mirrors, Observatories, Beam splitters, Turbulence

Read Abstract +

Proceedings Article | 13 September 2012 Paper

GeMS first on-sky results

Franҫois Rigaut, Benoit Neichel, Maxime Boccas, Céline d'Orgeville, Gustavo Arriagada, Vincent Fesquet, Sarah Diggs, Claudio Marchant, Gaston Gausach, William Rambold, Javier Luhrs, Shane Walker, Eleazar Carrasco-Damele, Michelle Edwards, Peter Pessev, Ramon Galvez, Tomislav Vucina, Claudio Araya, Alejandro Gutierrez, Angelic Ebbers, Andrew Serio, Cristian Moreno, Cristian Urrutia, Rolando Rogers, Roberto Rojas, Chadwick Trujillo, Bryan Miller, Douglas Simons, Ariel Lopez, Vanessa Montes, Herman Diaz, Felipe Daruich, Felipe Colazo, Matthieu Bec, Gelys Trancho, Michael Sheehan, Peter McGregor, Peter Young, Matthew Doolan, Jan van Harmelen, Brent Ellerbroek, Damien Gratadour, Aurea Garcia-Rissmann

Proceedings Volume 8447, 84470I (2012) https://doi.org/10.1117/12.927061

KEYWORDS: Stars, Adaptive optics, Point spread functions, Error analysis, Calibration, Gemini Observatory, Actuators, Turbulence, Image quality, Observatories

Read Abstract +

Proceedings Article | 28 July 2010 Paper

The Gemini MCAO System GeMS: nearing the end of a lab-story

B. Neichel, F. Rigaut, M. Bec, M. Boccas, F. Daruich, C. D'Orgeville, V. Fesquet, R. Galvez, A. Garcia-Rissmann, G. Gausachs, M. Lombini, G. Perez, G. Trancho, V. Upadhya, T. Vucina

Proceedings Volume 7736, 773606 (2010) https://doi.org/10.1117/12.856716

KEYWORDS: Adaptive optics, Telescopes, Calibration, Gemini Observatory, Actuators, Real-time computing, Laser guide stars, Data modeling, Laser systems engineering, Mirrors

Read Abstract +

Proceedings Article | 21 July 2010 Paper

Design and implementation of an improved chilled water glycol system for GeMS: CANOPUS thermal enclosures

Gaston Gausachs, Matthieu Bec, Ramon Galvez, Chas Cavedoni, Vicente Vergara, Herman Diaz, German Fernandez

Proceedings Volume 7735, 77356D (2010) https://doi.org/10.1117/12.857338

KEYWORDS: Sensors, Fluctuations and noise, Gemini Observatory, Adaptive optics, Human-machine interfaces, Cooling systems, Deformable mirrors, Logic, Chemical elements, Telescopes

Read Abstract +

Proceedings Article | 15 July 2010 Paper

Gemini Observatory instrumentation: a review of the past, present, and future on our 10th anniversary

Eric Tollestrup, Scot Kleinman, Stephen Goodsell, Gustavo Arriagada, Manuel Lazo, Rolando Rogers, Ramon Galvez, John White

Proceedings Volume 7735, 773505 (2010) https://doi.org/10.1117/12.857563

KEYWORDS: Gemini Observatory, Observatories, Spectrographs, Adaptive optics, Telescopes, Gemini Planet Imager, Imaging systems, Charge-coupled devices, Sensors, Astronomical imaging

Read Abstract +

Proceedings Article | 15 July 2008 Paper

The Gemini MCAO bench: system overview and lab integration

Matthieu Bec, Francois Rigaut, Ramon Galvez, Gustavo Arriagada, Maxime Boccas, Gaston Gausachs, Damien Gratadour, Eric James, Roberto Rojas, Rolando Rogers, Michael Sheehan, Gelys Trancho, Tomislav Vucina

Proceedings Volume 7015, 701568 (2008) https://doi.org/10.1117/12.790354

KEYWORDS: Gemini Observatory, Electronics, Telescopes, Real-time computing, Wavefront sensors, Mirrors, Sensors, Stars, Control systems, Laser guide stars

Read Abstract +

Proceedings Article | 9 July 2008 Paper

Gemini helium closed cycle cooling system

Manuel Lazo, Ramon Galvez, Rolando Rogers, Hernan Solis, Eduardo Tapia, Diego Maltes, Paul Collins, John White, Chas Cavedoni, Chris Yamasaki, Michael Sheehan, Brian Walls

Proceedings Volume 7014, 70147G (2008) https://doi.org/10.1117/12.787736

KEYWORDS: Gemini Observatory, Helium, Cryocoolers, Current controlled current source, Sensors, Cooling systems, Telescopes, Copper, Head, Cryogenics

Read Abstract +

Proceedings Article | 7 July 2008 Paper

GeMS: Gemini Mcao System: current status and commissioning plans

Maxime Boccas, François Rigaut, Damien Gratadour, Céline d'Orgeville, Matthieu Bec, Felipe Daruich, Gabriel Perez, Gustavo Arriagada, Stacy Bombino, Chris Carter, Chas Cavedoni, Fabian Collao, Paul Collins, Pablo Diaz, Angelic Ebbers, Ramon Galvez, Gaston Gausachs, Steve Hardash, Eric James, Stan Karewicz, Manuel Lazo, Diego Maltes, Ron Mouser, Rolando Rogers, Roberto Rojas, Michael Sheehan, Gelys Trancho, Vicente Vergara, Tomislav Vucina

Proceedings Volume 7015, 70150X (2008) https://doi.org/10.1117/12.788958

KEYWORDS: Telescopes, Gemini Observatory, Adaptive optics, Mirrors, Calibration, Laser stabilization, Sensors, Stars, Laser safety, Laser guide stars

Read Abstract +

Proceedings Article | 30 September 2004 Paper

The SOAR optical imager: status and first results

Hugo Schwarz, Michael Ashe, Maxime Boccas, Marco Bonati, Francisco Delgado, Ramon Gavez, Manuel Martinez, Patricio Schurter, Ricardo Schmidt, Roberto Tighe, Alistair Walker

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.553185

KEYWORDS: Telescopes, Charge-coupled devices, Prisms, Space telescopes, Imaging systems, Gemini Observatory, Astronomy, Optical filters, Image filtering, Sensors

Read Abstract +

Proceedings Article | 30 September 2004 Paper

ISPI: a wide-field NIR imager for the CTIO Blanco 4-m telescope

Nicole van der Bliek, Dara Norman, Robert Blum, Ronald Probst, Andres Montane, Ramon Galvez, Michael Warner, Roberto Tighe, Francisco Delgado, Manuel Martinez

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550973

KEYWORDS: Telescopes, Image quality, Infrared telescopes, Infrared imaging, Sensors, Imaging systems, Space telescopes, Collimators, Infrared radiation, Optical filters

Read Abstract +

Proceedings Article | 7 March 2003 Paper

ISPI: the infrared side port imager for the CITO 4-m telescope

Ronald Probst, Andres Montane, Michael Warner, Maxime Boccas, Marco Bonati, Ramon Galvez, Roberto Tighe, Michael Ashe, Nicole van der Bliek, Robert Blum

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461435

KEYWORDS: Telescopes, Space telescopes, Sensors, Infrared imaging, Cameras, Imaging systems, Infrared telescopes, Infrared radiation, Collimators, Optical design

Read Abstract +

Proceedings Article | 7 March 2003 Paper

SOAR Optical Imager

Alistair Walker, Maxime Boccas, Marco Bonati, Ramon Galvez, Manual Martinez, Patricio Schurter, Ricardo Schmidt, Michael Ashe, Francisco Delgado, Roberto Tighe

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.457977

KEYWORDS: Telescopes, Charge-coupled devices, Prisms, Imaging systems, Sensors, Optical instrument design, Gemini Observatory, Camera shutters, Space telescopes, Image filtering

Read Abstract +

Showing 5 of 20 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years