Mr. Tim M. Carnahan Profile

Tim M. Carnahan

at NASA/GSFC

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 22 August 2024 Presentation

Overview and inflight performance of the resolve high-resolution soft X-Ray spectrometer on the X-Ray imaging and spectroscopy mission

Richard Kelley, Hisamitsu Awaki, Jesus Balleza, Kim Barnstable, Thomas Bialas, Rozenn Boissay-Malaquin, Gregory Brown, Edgar Canavan, Timothy Carnahan, Meng Chiao, Brian Comber, Elisa Costantini, Renata Cumbee, Jan-Willem den Herder, Johannes Dercksen, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Nathalie Gorter, Steven Graham, Martin Grim, Leslie Hartz, Ryota Hayakawa, Takayuki Hayashi, Natalie Hell, Akio Hoshino, Yuto Ichinohe, Daiki Ishi, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Bryan James, Yoshiaki Kanemaru, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Brian McLaughlin, Joseph Miko, Erik van der Meer, Misaki Mizumoto, Takashi Okajima, Atsushi Okamoto, Stéphane Paltani, Frederick Porter, Lillian Reichenthal, Kosuke Sato, Toshiki Sato, Yoichi Sato, Makoto Sawada, Keisuke Shinozaki, Russell Shipman, Peter Shirron, Gary Sneiderman, Soong Yang, Richard Szymkiewicz, Andrew Szymkowiak, Yoh Takei, Mai Takeo, Tsubasa Tamba, Keisuke Tamura, Masahiro Tsujimoto, Yuusuke Uchida, Stephen Wasserzug, Michael Witthoeft, Rob Wolfs, Shinya Yamada, Susumu Yasuda

Proceedings Volume 13093, 130931J (2024) https://doi.org/10.1117/12.3017731

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Proceedings Article | 22 August 2024 Presentation

Initial in-orbit operation of the soft x-ray spectrometer Resolve onboard the XRISM satellite

Yoshitomo Maeda, Ryuichi Fujimoto, Hisamitsu Awaki, Jesus Balleza, Kim Barnstable, Thomas Bialas, Rozenn Boissay-Malaquin, Gregory Brown, Edgar Canavan, Timothy Carnahan, Meng Chiao, Brian Comber, Elisa Costantini, Renata Cumbee, Jan-Willem den Herder, Johannes Dercksen, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Nathalie Gorter, Steven Graham, Martin Grim, Leslie Hartz, Ryota Hayakawa, Takayuki Hayashi, Natalie Hell, Akio Hoshino, Yuto Ichinohe, Daiki Ishi, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Bryan James, Yoshiaki Kanemaru, Richard Kelley, Steve Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Maurice Leutenegger, Dan McCammon, Brian McLaughlin, Joseph Miko, Erik van der Meer, Misaki Mizumoto, Takashi Okajima, Atsushi Okamoto, Stéphane Paltani, Frederick Porter, Lillian Reichenthal, Kosuke Sato, Toshiki Sato, Yoichi Sato, Makoto Sawada, Keisuke Shinozaki, Russell Shipman, Peter Shirron, Gary Sneiderman, Soong Yang, Richard Szymkiewicz, Andrew Szymkowiak, Yoh Takei, Mai Takeo, Tsubasa Tamba, Keisuke Tamura, Masahiro Tsujimoto, Yuusuke Uchida, Stephen Wasserzug, Michael Witthoeft, Rob Wolfs, Shinya Yamada, Susumu Yasuda

Proceedings Volume 13093, 130931H (2024) https://doi.org/10.1117/12.3013008

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Proceedings Article | 21 August 2024 Poster + Paper

Pre- and post-launch operation of the soft x-ray spectrometer Resolve on board the XRISM satellite

Kosuke Sato, Yoshitaka Ishisaki, Richard Kelley, Hisamitsu Awaki, Jesus Balleza, Kim Barnstable, Thomas Bialas, Rozenn Boissay-Malaquin, Gregory Brown, Edgar Canavan, Renata Cumbee, Timothy Carnahan, Meng Chiao, Brian Comber, Elisa Costantini, Jan-Willem den Herder, Johannes Dercksen, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Nathalie Gorter, Steven Graham, Martin Grim, Leslie Hartz, Ryota Hayakawa, Takayuki Hayashi, Natalie Hell, Akio Hoshino, Yuto Ichinohe, Daiki Ishi, Manabu Ishida, Kumi Ishikawa, Bryan James, Yoshiaki Kanemaru, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Brian McLaughlin, Joseph Miko, Erik van der Meer, Misaki Mizumoto, Takashi Okajima, Atsushi Okamoto, Stéphane Paltani, Frederick Porter, Lillian Reichenthal, Toshiki Sato, Yoichi Sato, Makoto Sawada, Keisuke Shinozaki, Russell Shipman, Peter Shirron, Gary Sneiderman, Yang Soong, Richard Szymkiewicz, Andrew Szymkowiak, Yoh Takei, Mai Takeo, Tsubasa Tamba, Keisuke Tamura, Masahiro Tsujimoto, Yuusuke Uchida, Stephen Wasserzug, Michael Witthoeft, Rob Wolfs, Shinya Yamada, Susumu Yasuda, Seiji Yoshida

Proceedings Volume 13093, 1309362 (2024) https://doi.org/10.1117/12.3019327

KEYWORDS: Cryocoolers, Rockets, Space operations, X-rays, Satellites, Sensors, Porosity, Physics, Liquids, Spectroscopy

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Proceedings Article | 31 August 2022 Presentation + Paper

Status of resolve instrument onboard X-Ray Imaging and Spectroscopy Mission (XRISM)

Yoshitaka Ishisaki, Richard Kelley, Hisamitsu Awaki, Jesus Balleza, Kim Barnstable, Thomas Bialas, Rozenn Boissay-Malaquin, Gregory Brown, Edgar Canavan, Renata Cumbee, Timothy Carnahan, Meng Chiao, Brian Comber, Elisa Costantini, Jan-Willem den Herder, Johannes Dercksen, Cor de Vries, Michael DiPirro, Megan Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Nathalie Gorter, Steven Graham, Martin Grim, Leslie Hartz, Ryota Hayakawa, Takayuki Hayashi, Natalie Hell, Akio Hoshino, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Bryan James, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Shunji Kitamoto, Maurice Leutenegger, Yoshitomo Maeda, Dan McCammon, Joseph Miko, Misaki Mizumoto, Takashi Okajima, Atsushi Okamoto, Stephane Paltani, Frederick Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Keisuke Shinozaki, Russell Shipman, Peter Shirron, Gary Sneiderman, Yang Soong, Richard Szymkiewicz, Andrew Szymkowiak, Yoh Takei, Keisuke Tamura, Masahiro Tsujimoto, Yuusuke Uchida, Stephen Wasserzug, Michael Witthoeft, Rob Wolfs, Shinya Yamada, Susumu Yasuda

Proceedings Volume 12181, 121811S (2022) https://doi.org/10.1117/12.2630654

KEYWORDS: Sensors, X-rays, Space operations, Helium, Cryocoolers, Calibration, Optical filters, Sensor performance, X-ray detectors, Signal processing

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Proceedings Article | 6 July 2018 Presentation + Paper

Concept of the X-ray Astronomy Recovery Mission

Makoto Tashiro, Hironori Maejima, Kenichi Toda, Richard Kelley, Lillian Reichenthal, James Lobell, Robert Petre, Matteo Guainazzi, Elisa Costantini, Mark Edison, Ryuichi Fujimoto, Martin Grim, Kiyoshi Hayashida, Jan-Willem den Herder, Yoshitaka Ishisaki, Stéphane Paltani, Kyoko Matsushita, Koji Mori, Gary Sneiderman, Yoh Takei, Yukikatsu Terada, Hiroshi Tomida, Hiroki Akamatsu, Lorella Angelini, Yoshitaka Arai, Hisamitsu Awaki, Lurli Babyk, Aya Bamba, Peter Barfknecht, Kim Barnstable, Thomas Bialas, Branimir Blagojevic, Joseph Bonafede, Clifford Brambora, Laura Brenneman, Greg Brown, Kimberly Brown, Laura Burns, Edgar Canavan, Tim Carnahan, Meng Chiao, Brian Comber, Lia Corrales, Cor de Vries, Johannes Dercksen, Maria Diaz-Trigo, Tyrone Dillard, Michael DiPirro, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan Eckart, Teruaki Enoto, Yuichiro Ezoe, Carlo Ferrigno, Yasushi Fukazawa, Yutaka Fujita, Akihiro Furuzawa, Luigi Gallo, Steve Graham, Liyi Gu, Kohichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Dean Hawes, Takayuki Hayashi, Cailey Hegarty, Natalie Hell, Junko Hiraga, Edmund Hodges-Kluck, Matt Holland, Ann Hornschemeier, Akio Hoshino, Yuto Ichinohe, Ryo Iizuka, Kazunori Ishibashi, Manabu Ishida, Kumi Ishikawa, Kosei Ishimura, Bryan James, Timothy Kallman, Erin Kara, Satoru Katsuda, Steven Kenyon, Caroline Kilbourne, Mark Kimball, Takao Kitaguti, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Shu Koyama, Aya Kubota, Maurice Leutenegger, Tom Lockard, Mike Loewenstein, Yoshitomo Maeda, Lynette Marbley, Maxim Markevitch, Hironori Matsumoto, Keiichi Matsuzaki, Dan McCammon, Brian McNamara, Joseph Miko, Eric Miller, Jon Miller, Kenji Minesugi, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Hideyuki Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Hideto Nakamura, Shinya Nakashima, Kazuhiro Nakazawa, Chikara Natsukari, Kenichiro Nigo, Yusuke Nishioka, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Mina Ogawa, Takaya Ohashi, Masahiro Ohno, Masayuki Ohta, Takashi Okajima, Atsushi Okamoto, Michitaka Onizuka, Naomi Ota, Masanobu Ozaki, Paul Plucinsky, F. Scott Porter, Katja Pottschmidt, Kosuke Sato, Rie Sato, Makoto Sawada, Hiromi Seta, Ken Shelton, Yasuko Shibano, Maki Shida, Megumi Shidatsu, Peter Shirron, Aurora Simionescu, Randall Smith, Kazunori Someya, Yang Soong, Yasuharu Suagawara, Andy Szymkowiak, Hiromitsu Takahashi, Toru Tamagawa, Takayuki Tamura, Takaaki Tanaka, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Thomas Walsh, Shin Watanabe, Brian Williams, Rob Wolfs, Michael Wright, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Shigeo Yamauchi, Makoto Yamauchi, Keiichi Yanagase, Tahir Yaqoob, Susumu Yasuda, Nasa Yoshioka, Jaime Zabala, Zhuravleva Irina

Proceedings Volume 10699, 1069922 (2018) https://doi.org/10.1117/12.2309455

KEYWORDS: X-rays, Spectroscopy, Plasma, Galactic astronomy, Iron, Physics, Galaxy groups and clusters, Chemical elements, X-ray astronomy, Stars

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The ASTRO-H mission was designed and developed through an international collaboration of JAXA, NASA, ESA, and the CSA. It was successfully launched on February 17, 2016, and then named Hitomi. During the in-orbit verification phase, the on-board observational instruments functioned as expected. The intricate coolant and refrigeration systems for soft X-ray spectrometer (SXS, a quantum micro-calorimeter) and soft X-ray imager (SXI, an X-ray CCD) also functioned as expected. However, on March 26, 2016, operations were prematurely terminated by a series of abnormal events and mishaps triggered by the attitude control system. These errors led to a fatal event: the loss of the solar panels on the Hitomi mission. The X-ray Astronomy Recovery Mission (or, XARM) is proposed to regain the key scientific advances anticipated by the international collaboration behind Hitomi. XARM will recover this science in the shortest time possible by focusing on one of the main science goals of Hitomi,“Resolving astrophysical problems by precise high-resolution X-ray spectroscopy”.¹ This decision was reached after evaluating the performance of the instruments aboard Hitomi and the mission’s initial scientific results, and considering the landscape of planned international X-ray astrophysics missions in 2020’s and 2030’s. Hitomi opened the door to high-resolution spectroscopy in the X-ray universe. It revealed a number of discrepancies between new observational results and prior theoretical predictions. Yet, the resolution pioneered by Hitomi is also the key to answering these and other fundamental questions. The high spectral resolution realized by XARM will not offer mere refinements; rather, it will enable qualitative leaps in astrophysics and plasma physics. XARM has therefore been given a broad scientific charge: “Revealing material circulation and energy transfer in cosmic plasmas and elucidating evolution of cosmic structures and objects”. To fulfill this charge, four categories of science objectives that were defined for Hitomi will also be pursued by XARM; these include (1) Structure formation of the Universe and evolution of clusters of galaxies; (2) Circulation history of baryonic matters in the Universe; (3) Transport and circulation of energy in the Universe; (4) New science with unprecedented high resolution X-ray spectroscopy. In order to achieve these scientific objectives, XARM will carry a 6 × 6 pixelized X-ray micro-calorimeter on the focal plane of an X-ray mirror assembly, and an aligned X-ray CCD camera covering the same energy band and a wider field of view. This paper introduces the science objectives, mission concept, and observing plan of XARM.

Proceedings Article | 6 September 2017 Presentation + Paper

Augmented method to improve thermal data for the figure drift thermal distortion predictions of the JWST OTIS cryogenic vacuum test

Sang Park, Timothy Carnahan, Lester Cohen, Cherie Congedo, Michael Eisenhower, Wes Ousley, Andrew Weaver, Kan Yang

Proceedings Volume 10374, 1037406 (2017) https://doi.org/10.1117/12.2277116

KEYWORDS: James Webb Space Telescope, Distortion, Optical components, Optics manufacturing, Thermal modeling, Cryogenics, Finite element methods, Optical telescopes, Optical fabrication equipment, Infrared telescopes

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Proceedings Article | 29 July 2010 Paper

Design and analysis of the International X-Ray Observatory mirror modules

Ryan McClelland, Timothy Carnahan, David Robinson, Timo Saha

Proceedings Volume 7732, 773247 (2010) https://doi.org/10.1117/12.857535

KEYWORDS: Mirrors, Glasses, Finite element methods, X-rays, Observatories, Computer aided design, Space operations, X-ray telescopes, Safety, Phase only filters

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Proceedings Article | 1 September 2009 Paper

Mirror technology development for the International X-ray Observatory mission

W. Zhang, M. Atanassova, P. Augustin, P. Blake, G. Byron, T. Carnahan, K. Chan, C. Fleetwood, C. He, M. Hill, M. Hong, L. Kolos, J. Lehan, J. Mazzarella, R. McClelland, L. Olsen, R. Petre, D. Robinson, R. Russell, T. Saha, M. Sharpe, M. Gubarev, W. Jones, S. O'Dell, W. Davis, D. Caldwell, M. Freeman, W. Podgorski, P. Reid

Proceedings Volume 7437, 74370Q (2009) https://doi.org/10.1117/12.830226

KEYWORDS: Mirrors, Optical alignment, Glasses, X-rays, Observatories, Actuators, Imaging spectroscopy, Distortion, Coating, Spatial resolution

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Proceedings Article | 31 August 2009 Paper

Preliminary design of the International X-ray Observatory flight mirror assembly

Ryan McClelland, Timoth Carnahan, Michael Choi, David Robinson, Timo Saha

Proceedings Volume 7437, 74370A (2009) https://doi.org/10.1117/12.825364

KEYWORDS: Mirrors, Glasses, X-rays, Finite element methods, Observatories, Safety, Computer aided design, Space operations, X-ray telescopes, Phase only filters

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Proceedings Article | 14 June 2006 Paper

Concept for a large scalable space telescope: in-space assembly

W. Oegerle, L. Purves, J. Budinoff, R. Moe, T. Carnahan, D. Evans, C. Kim

Proceedings Volume 6265, 62652C (2006) https://doi.org/10.1117/12.672244

KEYWORDS: Space telescopes, Mirrors, Robots, Observatories, Robotics, Telescopes, James Webb Space Telescope, Image segmentation, Optical instrument design, Optical design

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Showing 5 of 10 publications

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