Dr. Edward L. Chapin Profile

Dr. Edward L. Chapin

at NRC - Herzberg Astronomy & Astrophysics

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 30 August 2022 Poster + Paper

Poster + Paper

HEART: Gemini Planet Imager upgrade (GPI2.0) Real-Time Controller (RTC) using the Herzberg Extensible Adaptive Real-time Toolkit (HEART)

Jonathan Stocks, Edward Chapin, Malcolm Smith, Darryl Gamroth, Jennifer Dunn, Dan Kerley, Lianne Muller, Jean-Pierre Véran, Jeffrey Chilcote, Quinn Konopacky, B. Macintosh, Christian Marois, Dmitry Savransky, Olivier Lardière, ‪Joeleff Fitzsimmons

Proceedings Volume 12185, 121856H (2022) https://doi.org/10.1117/12.2630705

KEYWORDS: Heart, Real-time computing, Adaptive optics, Gemini Planet Imager, Gemini Observatory, Wavefronts, Wavefront sensors, Telescopes, Control systems, Calibration

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

Infrared on-detector guide-windows in the era of extremely large telescopes

Jordan Lothrop, Edward Chapin, Tim Hardy, Jennifer Dunn, Owen Hubner

Proceedings Volume 12191, 121910R (2022) https://doi.org/10.1117/12.2627979

KEYWORDS: Sensors, Infrared telescopes, Imaging systems, Adaptive optics, Infrared radiation, IRIS Consortium, Cameras, Large telescopes

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

The InfraRed Imaging Spectrograph (IRIS) for TMT: photometric characterization of anisoplanatic PSFs and testing of PSF-Reconstruction via AIROPA

Arun Surya, Jessica Lu, Paolo Turri, Edward Chapin, Eric Chisholm, Tuan Do, Jennifer Dunn, Yutaka Hayano, Chris Johnson, James Larkin, Reed Riddle, Matthias Schöck, Ji Man Sohn, Ryuji Suzuki, Gregory Walth, Andrea Zonca, Andrea Ghez, Nils-Erik Rundquist, Shelley Wright

Proceedings Volume 11447, 114472Z (2020) https://doi.org/10.1117/12.2562773

KEYWORDS: Point spread functions, IRIS Consortium, Thirty Meter Telescope, Infrared Imaging Spectrograph, Adaptive optics, Imaging systems, Monte Carlo methods, Infrared telescopes, Iterated function systems, Device simulation

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: final software design update

Edward Chapin, Jennifer Dunn, Chris Johnson, Takashi Nakamoto, Jiman Simon Sohn, Arun Surya, Shelley Wright, Andrea Zonca, David Andersen, Eric Chisholm, Kim Gillies, Yutaka Hayano, Glen Herriot, Dan Kerley, James Larkin, Ryuji Suzuki

Proceedings Volume 11452, 114520R (2020) https://doi.org/10.1117/12.2561952

KEYWORDS: IRIS Consortium, Infrared Imaging Spectrograph, Control systems, Environmental sensing, Adaptive optics, Observatories, Control systems design, Wavefront sensors, Integral imaging, Cameras

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Fast modulation and dithering for the NFIRAOS pyramid wavefront sensor

David Andersen, Owen Brown, Jeffrey Crane, Adam Densmore, Jennifer Dunn, Glen Herriot, Dan Kerley, Olivier Lardiere, Jean-Pierre Véran, Edward Chapin, Tim Hardy

Proceedings Volume 11451, 114514V (2020) https://doi.org/10.1117/12.2560418

KEYWORDS: Wavefront sensors, Modulation, Thirty Meter Telescope, Mirrors, Sensors, Adaptive optics, Stars, Optical testing, Phase shift keying, Laser guide stars

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Proceedings Article | 16 July 2018 Paper

Paper

The InfraRed Imaging Spectrograph (IRIS) for TMT: photometric precision and ghost analysis

Nils Rundquist, Gregory Walth, Shelley Wright, Ryuji Suzuki, Tuan Do, Edward Chapin, Eric Chisholm, Jennifer Dunn, Yutaka Hayano, Chris Johnson, James Larkin, Reed Riddle, Matthias Schoeck, Ji Man Sohn

Proceedings Volume 10702, 10702A7 (2018) https://doi.org/10.1117/12.2314258

KEYWORDS: IRIS Consortium, Photometry, Imaging systems, Signal to noise ratio, Optical filtering, Point spread functions, Error analysis, Thirty Meter Telescope

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Proceedings Article | 10 July 2018 Paper

Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: advancing the data reduction system

Gregory Walth, Shelley Wright, David Andersen, Edward Chapin, Eric Chisholm, Tuan Do, Jennifer Dunn, Brent Ellerbroek, Kim Gillies, Yutaka Hayano, Chris Johnson, James Larkin, Takashi Nakamoto, Reed Riddle, Nils-Erik Rundquist, Luc Simard, Roger Smith, Ryuji Suzuki, Ji Man Sohn, Robert Weber, Jason Weiss, Kai Zhang

Proceedings Volume 10707, 1070731 (2018) https://doi.org/10.1117/12.2314228

KEYWORDS: IRIS Consortium, Imaging systems, Thirty Meter Telescope, Infrared Imaging Spectrograph, Iterated function systems, Sensors, Infrared telescopes, Optical filters, Image filtering, Point spread functions

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Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

The Real-Time controller (RTC) for the Narrow Field Infrared Adaptive Optics System (NFIRAOS) for TMT final design

Jennifer Dunn, Dan Kerley, Ed Chapin, Glen Herriot, Jean-Pierre Veran, Lianqi Wang, Luc Gilles, Corinne Boyer, Gelys Trancho, Malcolm Smith

Proceedings Volume 10703, 1070317 (2018) https://doi.org/10.1117/12.2314226

KEYWORDS: Real-time computing, Adaptive optics, Control systems, Wavefronts, Wavefront sensors, Telescopes, Prototyping, Stars, Actuators, Laser guide stars

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: closed-loop adaptive optics while dithering

Edward Chapin, Jennifer Dunn, David Andersen, Glen Herriot, Dan Kerley, Takashi Nakamoto, Lianqi Wang, Jimmy Johnson, Gelys Trancho, Eric Chisholm, Brent Ellerbroek, Kim Gillies, Yutaka Hayano, James Larkin, Luc Simard, Ryuji Suzuki, Robert Weber, Shelley Wright, Kai Zhang, Mark Sirota

Proceedings Volume 10707, 107071E (2018) https://doi.org/10.1117/12.2312804

KEYWORDS: IRIS Consortium, Telescopes, Adaptive optics, Java, Control systems, Real-time computing, Motion controllers, Error analysis, Observatories, Wavefront sensors

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Proceedings Article | 9 August 2016 Paper

Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: multi-tiered wavefront measurements and novel mechanical design

Jennifer Dunn, David Andersen, Edward Chapin, Vlad Reshetov, Ramunas Wierzbicki, Glen Herriot, Victor Isbrucker, James Larkin, Anna Moore, Dean Chalmer, Ryuji Suzuki

Proceedings Volume 9908, 9908A9 (2016) https://doi.org/10.1117/12.2234030

KEYWORDS: Thirty Meter Telescope, Interfaces, IRIS Consortium, Adaptive optics, Wavefront sensors, Wavefronts, Stars, Real-time computing, Sensors, Imaging systems

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The InfraRed Imaging Spectrograph (IRIS) will be the first light adaptive optics instrument on the Thirty Meter Telescope (TMT). IRIS is being built by a collaboration between Caltech, the University of California, NAOJ and NRC Herzberg. In this paper we present novel aspects of the Support Structure, Rotator and On-Instrument Wavefront Sensor systems being developed at NRC Herzberg. IRIS is suspended from the bottom port of the Narrow Field Infrared Adaptive Optics System (NFIRAOS), and provides its own image de-rotation to compensate for sidereal rotation of the focal plane. This arrangement is a challenge because NFIRAOS is designed to host two other science instruments, which imposes strict mass requirements on IRIS. As the mechanical design of all elements has progressed, we have been tasked with keeping the instrument mass under seven tonnes. This requirement has resulted in a mass reduction of 30 percent for the support structure and rotator compared to the most recent IRIS designs. To accomplish this goal, while still being able to withstand earthquakes, we developed a new design with composite materials. As IRIS is a client instrument of NFIRAOS, it benefits from NFIRAOS’s superior AO correction. IRIS plays an important role in providing this correction by sensing low-order aberrations with three On-Instrument Wavefront Sensors (OIWFS). The OIWFS consists of three independently positioned natural guide star wavefront sensor probe arms that patrol a 2-arcminute field of view. We expect tip-tilt measurements from faint stars within the IRIS imager focal plane will further stabilize the delivered image quality. We describe how the use of On-Detector Guide Windows (ODGWs) in the IRIS imaging detector can be incorporated into the AO correction. In this paper, we present our strategies for acquiring and tracking sources with this complex AO system, and for mitigating and measuring the various potential sources of image blur and misalignment due to properties of the mechanical structure and interfaces.

Proceedings Article | 8 August 2016 Paper

Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: data reduction system

Gregory Walth, Daniel Marshall, Anna Moore, Luc Simard, Ryuji Suzuki, Jason Weiss, Shelley Wright, Tuan Do, Jennifer Dunn, Yutaka Hayano, Chris Johnson, James Larkin, Edward Chapin, Kim Gillies, Ji Man Sohn, James Wincentsen, Brent Ellerbroek, Reed Riddle

Proceedings Volume 9913, 99134A (2016) https://doi.org/10.1117/12.2233076

KEYWORDS: Astronomy, IRIS Consortium, Imaging systems, Calibration, Iterated function systems, Visualization, Sensors, Optical filters, Spectrographs, Image filtering

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Proceedings Article | 2 August 2016 Paper

Paper

The Infrared Imaging Spectrograph (IRIS) for TMT: motion planning with collision avoidance for the on-instrument wavefront sensors

Anna Moore, Ji Man Sohn, Ryuji Suzuki, Shelley Wright, Edward Chapin, Jennifer Dunn, Jason Weiss, Kim Gillies, Yutaka Hayano, Chris Johnson, James Larkin, Reed Riddle, Roger Smith, Gregory Walth

Proceedings Volume 9913, 99130T (2016) https://doi.org/10.1117/12.2233608

KEYWORDS: IRIS Consortium, Stars, Thirty Meter Telescope, Detection and tracking algorithms, IRIS Consortium, Wavefront sensors, Infrared Imaging Spectrograph, Collision avoidance, Adaptive optics, Astronomy, Observatories

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Proceedings Article | 27 July 2016 Paper

Paper

Thirty Meter Telescope narrow-field infrared adaptive optics system real-time controller prototyping results

Malcolm Smith, Dan Kerley, Jennifer Dunn, Jean-Pierre Véran, Corinne Boyer, Edward Chapin, Glen Herriot, Luc Gilles, Lianqi Wang, Brent Ellerbroek

Proceedings Volume 9909, 99094N (2016) https://doi.org/10.1117/12.2233711

KEYWORDS: Adaptive optics, Prototyping, Infrared telescopes, Thirty Meter Telescope, Adaptive optics, Infrared telescopes, Prototyping, Real-time computing, Wavefronts, Wavefront sensors, Actuators, Deformable mirrors, Data storage

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Proceedings Article | 27 September 2012 Paper

Paper

A new era of wide-field submillimetre imaging: on-sky performance of SCUBA-2

Remo P. Tilanus, Jessica Dempsey, Holly Thomas, Douglas Scott, Per Friberg, Ian Robson, David Berry, Wayne Holland, Andy Gibb, Harriet A. Parsons, Simon Craig, Daniel Bintley, Craig Walther, Antonio Chrysostomou, Tim Jenness, Iain Coulson, Edward Chapin, Gary Davis

Proceedings Volume 8452, 845202 (2012) https://doi.org/10.1117/12.926547

KEYWORDS: Calibration, Bolometers, Astronomy, Mars, Telescopes, Sensors, Galactic astronomy, Camera shutters, Signal attenuation, Interference (communication)

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Proceedings Article | 24 September 2012 Paper

Paper

Scaling the summit of the submillimetre: instrument performance of SCUBA-2

Bryce Burger, Peter A. Ade, Rashmi Sudiwala, Camelia Dunare, William Parkes, Anthony Walton, Matthew Hasselfield, Michael MacIntosh, John Kuroda, Xiaofeng Gao, Adam Woodcraft, Kent Irwin, Edward Chapin, Wayne Holland, Craig Walther, Mark Halpern, Viktoria Asboth, Holly Thomas, Erik Starman, Mandana Amiri, Michael Niemack, Gene Hilton, Per Friberg, Dan Bintley, Jessica Dempsey

Proceedings Volume 8452, 845208 (2012) https://doi.org/10.1117/12.926613

KEYWORDS: Sensors, Technetium, Bolometers, Detector arrays, Multiplexers, Semiconducting wafers, Astronomy, Superconductors, Temperature metrology, Telescopes

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Proceedings Article | 19 July 2010 Paper

Paper

CANFAR: the Canadian Advanced Network for Astronomical Research

Mike Paterson, Séverin Gaudet, David Schade, Duncan Penfold-Brown, Sébastien Fabbro, Jeff Burke, Isabella Ghiurea, Nick Ball, Norman Hill, Michael Peddle, Sharon Goliath, Pat Dowler, Dustin Jenkins, Brian Chapel, Brian Major, Patrick Armstrong, Yuehai Zhang, JJ Kavelaars, Randall Sobie, Stephen Gwyn, Ian Gable, Ed Chapin, Chris Pritchet, Alinga Yeung, John Ouellette, Adrian Damian, David Woods

Proceedings Volume 7740, 77401I (2010) https://doi.org/10.1117/12.858026

KEYWORDS: Clouds, Astronomy, Telescopes, Data storage, Astronomical telescopes, Space telescopes, Web services, Data processing, Observatories, Computer architecture

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Proceedings Article | 19 July 2010 Paper

Paper

JCMT Telescope Control System upgrades for SCUBA-2

Russell Kackley, Per Friberg, Edward Chapin, Douglas Scott

Proceedings Volume 7740, 77401Z (2010) https://doi.org/10.1117/12.857397

KEYWORDS: Telescopes, Control systems, Heterodyning, Astronomy, Astronomical telescopes, Observatories, Human-machine interfaces, Computing systems, Operating systems, Raster graphics

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Proceedings Article | 15 July 2010 Paper

Paper

The balloon-borne large-aperture submillimeter telescope for polarimetry: BLAST-Pol

Gregory Tucker, Carole Tucker, Tony Mroczkowski, Andrei Korotkov, Edward Chapin, David Hughes, Enzo Pascale, Steven Benton, Jamil Shariff, Matthew D. Truch, Tristan Matthews, Natalie Gandilo, Joshua Gundersen, Douglas Scott, Peter A. Ade, Peter Hargrave, Giles Novak, Giorgio Savini, C. Barth Netterfield, Francesco Angilè, Galen Marsden, Laura Fissel, Juan Diego Soler, Nicholas Thomas, Lorenzo Moncelsi, Derek Ward-Thompson, Jeffrey Klein, Donald Wiebe, Luca Olmi, Mark Devlin

Proceedings Volume 7741, 77410E (2010) https://doi.org/10.1117/12.857601

KEYWORDS: Clouds, Polarization, Telescopes, Polarimetry, Magnetism, Sensors, Stars, Mirrors, Physics, Space telescopes

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Proceedings Article | 18 July 2008 Paper

Paper

The Balloon-borne Large-Aperture Submillimeter Telescope for polarization: BLAST-pol

D. Wiebe, J. Chung, J. Klein, G. Tucker, P. Hargrave, E. Pascale, J. Gundersen, C. Tucker, J. Bock, T. Matthews, D. Scott, G. Marsden, M. Halpern, L. Fissel, C. Netterfield, L. Olmi, P. Mauskopf, M. Rex, M. Griffin, S. Dicker, M. D. P. Truch, M. Viero, G. Savini, P. Martin, C. Semisch, E. Chapin, M. Devlin, A. Korotkov, G. Novak, C. MacTavish, P. A. R. Ade, G. Patanchon, L. Moncelsi, D. Hughes, N. Thomas, D. Ward-Thompson, S. Benton, T. Martin

Proceedings Volume 7020, 702002 (2008) https://doi.org/10.1117/12.788413

KEYWORDS: Polarization, Clouds, Sensors, Stars, Mirrors, Telescopes, Polarimetry, Space telescopes, Magnetism, Physics

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Proceedings Article | 6 July 2006 Paper

Paper

SCUBA-2: a 10,000-pixel submillimeter camera for the James Clerk Maxwell Telescope

Gary Davis, Maureen Ellis, David Montgomery, Wayne Holland, Jan Kycia, Andy Gibb, Simon Craig, Carl Reintsema, Frossie Economou, Ian Walker, Adam Woodcraft, Kent Irwin, Mark Halpern, Anthony Walton, Dennis Kelly, Alasdair Fairley, Ian Robson, Dan Bintley, Gene Hilton, Tim Jenness, Camelia Dunare, Tomas Chylek, Ed Chapin, Michael MacIntosh, Douglas Scott, David Gostick, Eli Atad-Ettedgui, William Duncan, Matthew Hollister, William Parkes, Michel Fich, Janos Molnar, Peter Ade

Proceedings Volume 6275, 62751E (2006) https://doi.org/10.1117/12.671186

KEYWORDS: Telescopes, Mirrors, Sensors, Astronomy, Cameras, Camera shutters, Bolometers, Computer aided design, Electronics, Staring arrays

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Proceedings Article | 29 June 2006 Paper

Paper

BLAST autonomous daytime star cameras

Marie Rex, Jeff Klein, Joshua Gundersen, Mark Devlin, Edward Chapin, Enzo Pascale, Donald Wiebe

Proceedings Volume 6269, 62693H (2006) https://doi.org/10.1117/12.671965

KEYWORDS: Stars, Cameras, Sensors, Telescopes, CCD cameras, Control systems, Physics, Astronomy, Gyroscopes, Charge-coupled devices

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Proceedings Article | 1 September 2005 Paper

Paper

First light of a hard-x-ray imaging experiment: the InFOCμS balloon flight

Marie Rex, Takashi Okajima, Hans Krimm, Koujun Yamashita, Machiko Sakashita, Yasushi Ogasaka, Ryo Shibata, Peter Serlemitsos, Scott Owens, Mark Devlin, Yuzuru Tawara, Ed Chapin, Rika Takahashi, Takuya Miyazawa, Kai-Wing Chan, Hideyo Kunieda, Kenta Shimoda, Jack Tueller, Keisuke Tamura, Akihiro Furuzawa, Yang Soong, Scott Barthelmy

Proceedings Volume 5900, 59000R (2005) https://doi.org/10.1117/12.616677

KEYWORDS: Hard x-rays, Sensors, Telescopes, Signal detection, X-ray telescopes, Imaging systems, X-rays, Astronomy, Stars, Observatories

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Proceedings Article | 8 October 2004 Paper

Paper

The Balloon-borne Large Aperture Submillimeter Telescope (BLAST)

Barth Netterfield, Marie Rex, Mark Devlin, Peter Hargrave, Luca Olmi, Donald Weibe, Mark Halpern, Peter Ade, Matt Griffin, Gaelen Marsden, Carole Tucker, Jaspaul Chung, Gregory Tucker, James Bock, Philip Mauskopf, Simon Dicker, Douglas Scott, Itziar Aretxaga, Edward Chapin, Peter Martin, Jeffrey Klein, Anthony Turner, Matthew Truch, Christopher Semisch, Enzo Pascale, David Hughes, Joshua Gundersen

Proceedings Volume 5498, (2004) https://doi.org/10.1117/12.555258

KEYWORDS: Galactic astronomy, Sensors, Mirrors, Telescopes, Stars, Bolometers, Astronomy, Space telescopes, Physics, Cameras

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Showing 5 of 23 publications

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