Prof. Ryuichi Fujimoto
Professor at Institute of Space and Astronautical Science, JAXA
SPIE Involvement:
Author
Area of Expertise:
x-ray astronomy , x-ray microcalorimeter , cryogenics
Profile Summary

I received my BS, MS, and Ph.D. degrees in physics from the University of Tokyo in 1991, 1993, and 1996, respectively. I devoted myself to the XRS experiments onboard ASTRO-E and ASTRO-E2 (Suzaku), to the SXS experiment onboard ASTRO-H (Hitomi), and to the Resolve instrument onboard the X-ray astronomy recovery mission (XRISM). My current research interests include high-energy astrophysics, high-resolution X-ray spectroscopy, instrumentation, and cryogenics.
Publications (69)

SPIE Journal Paper | 1 March 2023
Takashi Hasebe, Ryuta Imamura, Masahiro Tsujimoto, Hisamitsu Awaki, Meng Chiao, Ryuichi Fujimoto, Leslie Hartz, Caroline Kilbourne, Gary Sneiderman, Yoh Takei, Susumu Yasuda, the XRISM Resolve team
JATIS, Vol. 9, Issue 01, 014003, (March 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.1.014003
KEYWORDS: Space operations, X-rays, Accelerometers, Equipment, X-ray imaging, Cryocoolers, Spectroscopy, Imaging spectroscopy, Vibration, Sensors

Proceedings Article | 31 August 2022 Presentation + Paper
Kosuke Sato, Noriko Yamasaki, Shinya Yamada, Ikuyuki Mitsuishi, Yuto Ichinohe, Hajime Omamiuda, Yuusuke Uchida, Kazuhisa Mitsuda, Daisuke Nagai, Kohji Yoshikawa, Ken Osato, Kyoko Matsushita, Yutaka Fujita, Yoshitaka Ishisaki, Yuichiro Ezoe, Manabu Ishida, Yoshitomo Maeda, Nobuyuki Kawai, Ryuichi Fujimoto, Takeshi Tsuru, Naomi Ota, Yuki Nakashima
Proceedings Volume 12181, 1218123 (2022) https://doi.org/10.1117/12.2629066
KEYWORDS: X-rays, Physics, Graphene, X-ray telescopes, Magnetism, Cooling systems, Spatial resolution, Sensors, Radio optics, Galactic astronomy

Proceedings Article | 31 August 2022 Poster + Paper
Proceedings Volume 12181, 1218163 (2022) https://doi.org/10.1117/12.2629782
KEYWORDS: Space operations, Sensors, Cryocoolers, X-rays, X-ray imaging, X-ray detectors, Spectroscopy, Magnetic sensors, Imaging spectroscopy, Electronics

Proceedings Article | 31 August 2022 Poster + Paper
Proceedings Volume 12181, 1218164 (2022) https://doi.org/10.1117/12.2630133
KEYWORDS: Calibration, Light emitting diodes, Spectroscopy, X-rays, Sensors, Copper, Space operations, Optimization (mathematics)

Proceedings Article | 31 August 2022 Presentation + Paper
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