Mr. Ramon L. Galvez Profile

Ramon L. Galvez

Electrical Engineer at Gemini Observatory

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Author

Publications (20)

Proceedings Article | 27 July 2016 Paper

Characterizing the vibration environments of the Gemini telescopes

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

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

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Proceedings Article | 7 August 2014 Paper

The Gemini planet imager: first light and commissioning

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

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

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Proceedings Article | 7 August 2014 Paper

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

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

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

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Proceedings Article | 7 August 2014 Paper

Life with quintuplets: transitioning GeMS into regular operations

Gaetano Sivo, Vanessa Montes, Vincent Garrel, Marcos Van Dam, Benoît Neichel, Fabrice Vidal, Eduardo Marin, 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

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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

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

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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

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Proceedings Article | 25 September 2012 Paper

Science readiness of the Gemini MCAO System: GeMS

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, Matthieu Bec, Claudio Marchant, Fabian Collao, Eleazar Carrasco, Michelle Edwards, Peter Pessev, Ariel Lopez, Herman Diaz, Gelys Trancho, Benoit Neichel

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

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Proceedings Article | 24 September 2012 Paper

The Gemini Planet Imager: integration and status

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

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

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Proceedings Article | 13 September 2012 Paper

Science readiness of the Gemini MCAO system: GeMS

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

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

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Proceedings Article | 13 September 2012 Paper

GeMS first on-sky results

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

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

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Proceedings Article | 28 July 2010 Paper

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

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

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

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Proceedings Article | 21 July 2010 Paper

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

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

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

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Proceedings Article | 15 July 2010 Paper

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

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

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

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Proceedings Article | 15 July 2008 Paper

The Gemini MCAO bench: system overview and lab integration

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

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

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Proceedings Article | 9 July 2008 Paper

Gemini helium closed cycle cooling system

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

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

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Proceedings Article | 7 July 2008 Paper

GeMS: Gemini Mcao System: current status and commissioning plans

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

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

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Proceedings Article | 30 September 2004 Paper

The SOAR optical imager: status and first results

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

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

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Proceedings Article | 30 September 2004 Paper

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

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

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

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Proceedings Article | 7 March 2003 Paper

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

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

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

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Proceedings Article | 7 March 2003 Paper

SOAR Optical Imager

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

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

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Showing 5 of 20 publications

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