Mr. William Rusty Gardhouse Profile

William Rusty Gardhouse

at LMI Technologies Inc

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Author

Publications (11)

Proceedings Article | 21 July 2014 Paper

Adaptive optics for space debris tracking

Francis Bennet, Celine D’Orgeville, Yue Gao, William Gardhouse, Nicolas Paulin, Ian Price, Francois Rigaut, Ian Ritchie, Craig Smith, Kristina Uhlendorf, Yanjie Wang

Proceedings Volume 9148, 91481F (2014) https://doi.org/10.1117/12.2055560

KEYWORDS: Space telescopes, Adaptive optics, Telescopes, Satellites, Optical tracking, Pulsed laser operation, Wavefront sensors, Radar, Ranging, LIDAR

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Space debris in Low Earth Orbit (LEO) is becoming an increasing threat to satellite and spacecraft. A reliable and cost effective method for detecting possible collisions between orbiting objects is required to prevent an exponential growth in the number of debris. Current RADAR survey technologies used to monitor the orbits of thousands of space debris objects are relied upon to manoeuvre operational satellites to prevent possible collisions. A complimentary technique, ground-based laser LIDAR (Light Detection and Ranging) have been used to track much smaller objects with higher accuracy than RADAR, giving greater prediction of possible collisions and avoiding unnecessary manoeuvring. Adaptive optics will play a key role in any ground based LIDAR tracking system as a cost effective way of utilising smaller ground stations or less powerful lasers. The use of high power and high energy lasers for the orbital modification of debris objects will also require an adaptive optic system to achieve the high photon intensity on the target required for photon momentum transfer and laser ablation. EOS Space Systems have pioneered the development of automated laser space debris tracking for objects in low Earth orbit. The Australian National University have been developing an adaptive optics system to improve this space debris tracking capability at the EOS Space Systems Mount Stromlo facility in Canberra, Australia. The system is integrated with the telescope and commissioned as an NGS AO system before moving on to LGS AO and tracking operations. A pulsed laser propagated through the telescope is used to range the target using time of flight data. Adaptive optics is used to increase the maximum range and number or targets available to the LIDAR system, by correcting the uplink laser beam. Such a system presents some unique challenges for adaptive optics: high power lasers reflecting off deformable mirrors, high slew rate tracking, and variable off-axis tracking correction. A low latency real time computer system is utilised to control the systems, with a Shack-Hartmann wavefront sensor and deformable mirror running at 1500 frames per second. A laser guide star is used to probe the atmosphere and the tracked debris object is used as a natural guide star for tip-tilt correction.

Proceedings Article | 24 September 2012 Paper

FLAMINGOS-2: the facility near-infrared wide-field imager and multi-object spectrograph for Gemini

Stephen Eikenberry, Reba Bandyopadhyay, J. Greg Bennett, Aaron Bessoff, Matt Branch, Miguel Charcos, Richard Corley, Curtis Dewitt, John-David Eriksen, Richard Elston, Skip Frommeyer, Anthony Gonzalez, Kevin Hanna, Michael Herlevich, David Hon, Jeff Julian, Roger Julian, Nestor Lasso, Antonio Marin-Franch, Jose Marti, Charlie Murphey, S. Raines, William Rambold, David Rashkind, Craig Warner, Brian Leckie, W. Gardhouse, Murray Fletcher, Tim Hardy, Jennifer Dunn, Robert Wooff, John Pazder

Proceedings Volume 8446, 84460I (2012) https://doi.org/10.1117/12.925679

KEYWORDS: Molybdenum, Gemini Observatory, Telescopes, Astronomical imaging, Image quality, Cryogenics, Detector arrays, Spectrographs, Cameras, Imaging spectroscopy

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Proceedings Article | 13 September 2012 Paper

The Giant Magellan Telescope laser tomography adaptive optics system

R. Conan, F. Bennet, A. Bouchez, M. van Dam, B. Espeland, W. Gardhouse, C. d'Orgeville, S. Parcell, P. Piatrou, I. Price, F. Rigaut, G. Trancho, K. Uhlendorf

Proceedings Volume 8447, 84473P (2012) https://doi.org/10.1117/12.924865

KEYWORDS: Telescopes, Adaptive optics, Wavefronts, Sodium, Tomography, Sensors, Mirrors, Wavefront sensors, Stars, Laser guide stars

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Proceedings Article | 13 September 2012 Paper

The Giant Magellan Telescope adaptive optics program

Antonin Bouchez, D. Scott Acton, Guido Agapito, Carmelo Arcidiacono, Francis Bennet, Valdemaro Biliotti, Marco Bonaglia, Runa Briguglio, Guido Brusa-Zappellini, Lorenzo Busoni, Luca Carbonaro, Johanan Codona, Rodolphe Conan, Thomas Connors, Oliver Durney, Brady Espeland, Simone Esposito, Luca Fini, Rusty Gardhouse, Thomas Gauron, Michael Hart, Philip Hinz, Srikrishna Kanneganti, Edward Kibblewhite, Russell Knox, Brian McLeod, Thomas McMahon, Manny Montoya, Timothy Norton, Mark Ordway, Celine d'Orgeville, Simon Parcell, Piotr Piatrou, Enrico Pinna, Ian Price, Alfio Puglisi, Fernando Quiros-Pacheco, Armando Riccardi, John Roll, Gelys Trancho, Kristina Uhlendorf, Vidhya Vaitheeswaran, Marcos van Dam, David Weaver, Marco Xompero

Proceedings Volume 8447, 84471I (2012) https://doi.org/10.1117/12.926691

KEYWORDS: Adaptive optics, Wavefront sensors, Telescopes, Mirrors, Sensors, Laser guide stars, Wavefronts, Tomography, Calibration, Atmospheric optics

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Proceedings Article | 9 July 2008 Paper

FLAMINGOS-2: the facility near-infrared wide-field imager and multi-object spectrograph for Gemini

Stephen Eikenberry, Richard Elston, S. Nicholas Raines, Jeff Julian, Kevin Hanna, Craig Warner, Roger Julian, Reba Bandyopadhyay, J. Greg Bennett, Aaron Bessoff, Matt Branch, Richard Corley, Curtis Dewitt, John-David Eriksen, Skip Frommeyer, Anthony Gonzalez, Michael Herlevich, David Hon, Antonio Marin-Franch, Jose Marti, Charlie Murphey, William Rambold, David Rashkin, Brian Leckie, W. Rusty Gardhouse, Murray Fletcher, Tim Hardy, Jennifer Dunn, Robert Wooff

Proceedings Volume 7014, 70140V (2008) https://doi.org/10.1117/12.788326

KEYWORDS: Molybdenum, Gemini Observatory, Telescopes, Astronomical imaging, Spectrographs, Detector arrays, Cameras, Prisms, Imaging systems, Cryogenics

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Proceedings Article | 11 July 2006 Paper

The MOAO system of the IRMOS near-infrared multi-object spectrograph for TMT

David Andersen, Stephen Eikenberry, Murray Fletcher, William Gardhouse, Brian Leckie, Jean-Pierre Véran, Don Gavel, Richard Clare, Rafael Guzman, Laurent Jolissaint, Roger Julian, William Rambold

Proceedings Volume 6269, 62694K (2006) https://doi.org/10.1117/12.672177

KEYWORDS: Molybdenum, Mirrors, Monochromatic aberrations, Adaptive optics, Point spread functions, Actuators, Tomography, Charge-coupled devices, Telescopes, Microelectromechanical systems

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Proceedings Article | 29 June 2006 Paper

FLAMINGOS-2 OIWFS

Brian Leckie, William Gardhouse, Murray Fletcher, Robert Wooff, Tim Hardy

Proceedings Volume 6269, 626945 (2006) https://doi.org/10.1117/12.670834

KEYWORDS: Charge-coupled devices, Stars, Gemini Observatory, Wavefront sensors, Mirrors, Control systems, Telescopes, Motion measurement, Spectrographs, Molybdenum

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Proceedings Article | 28 June 2006 Paper

FLAMINGOS-2: the facility near-infrared wide-field imager and multi-object spectrograph for Gemini

Stephen Eikenberry, Richard Elston, S. Nicholas Raines, Jeff Julian, Kevin Hanna, David Hon, Roger Julian, R. Bandyopadhyay, J. Greg Bennett, Aaron Bessoff, Matt Branch, Richard Corley, John-David Eriksen, Skip Frommeyer, Anthony Gonzalez, Michael Herlevich, Antonio Marin-Franch, Jose Marti, Charlie Murphy, David Rashkin, Craig Warner, Brian Leckie, W. Rusty Gardhouse, Murray Fletcher, Jennifer Dunn, Robert Wooff, Tim Hardy

Proceedings Volume 6269, 626917 (2006) https://doi.org/10.1117/12.672095

KEYWORDS: Molybdenum, Telescopes, Gemini Observatory, Astronomical imaging, Imaging spectroscopy, Imaging systems, Spectrographs, Detector arrays, Cameras, Sensors

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Proceedings Article | 28 June 2006 Paper

A proposed implementation of a ground layer adaptive optics system on the Gemini Telescope

Kei Szeto, David Andersen, David Crampton, Simon Morris, Michael Lloyd-Hart, Richard Myers, Joseph Jensen, Murray Fletcher, W. Rusty Gardhouse, N. Mark Milton, John Pazder, Jeff Stoesz, Doug Simons, Jean-Pierre Véran

Proceedings Volume 6269, 626958 (2006) https://doi.org/10.1117/12.672566

KEYWORDS: Gemini Observatory, Mirrors, Telescopes, Actuators, Adaptive optics, Image quality, Laser guide stars, Wavefront sensors, Space telescopes, Point spread functions

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Proceedings Article | 27 June 2006 Paper

IRMOS: The near-infrared multi-object spectrograph for the TMT

Stephen Eikenberry, David Andersen, Rafael Guzman, John Bally, Salvador Cuevas, Murray Fletcher, Rusty Gardhouse, Don Gavel, Anthony Gonzalez, Nicolas Gruel, Fred Hamann, Sam Hamner, Roger Julian, Jeff Julian, David Koo, Elizabeth Lada, Brian Leckie, J. Alberto Lopez, Roser Pello, Jorge Perez, William Rambold, Carlos Roman, Ata Sarajedini, Jonathan Tan, Kim Venn, Jean-Pierre Veran, John Ziegert

Proceedings Volume 6269, 62695W (2006) https://doi.org/10.1117/12.672266

KEYWORDS: Molybdenum, Mirrors, Spectrographs, Galactic astronomy, Relays, Telescopes, Astronomical imaging, Adaptive optics, Stars, Thirty Meter Telescope

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Proceedings Article | 30 September 2004 Paper

FLAMINGOS-2: the facility near-infrared wide-field imager and multi-object spectrograph for Gemini

Stephen Eikenberry, Richard Elston, S. Nicholas Raines, Jeff Julian, Richard Corley, Kevin Hanna, David Hon, Roger Julian, David Rashkin, Brian Leckie, W. Rusty Gardhouse, Murray Fletcher, Jennifer Dunn, Robert Wooff

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.549796

KEYWORDS: Molybdenum, Gemini Observatory, Telescopes, Astronomical imaging, Spectrographs, Detector arrays, Cameras, Imaging systems, Image quality, Spectroscopy

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Showing 5 of 11 publications

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