Dr. Takahiro Iwata Profile

Dr. Takahiro Iwata

at Institute of Space and Astronautical Science

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 23 August 2024 Poster + Paper

A 1–50 MHz short dipole antenna for observing the 21 cm global signal on the Moon

Yasumasa Yamasaki, Takeru Matsumoto, Satoru Iguchi, Toshikazu Onishi, Toru Yamada, Daisuke Yamauchi, Fuminori Tsuchiya, Keitaro Takahashi, Naoki Isobe, Takahiro Iwata, Naoto Usami, Yutaro Sekimoto, Yasuyuki Miyazaki, Takanao Saiki, Osamu Mori, Tetsuo Yoshimitsu

Proceedings Volume 13092, 1309278 (2024) https://doi.org/10.1117/12.3018545

KEYWORDS: Antennas, Reflection, Receivers, Simulations, Dielectrics, Calibration, Absorption, Signal detection, Resistance

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Proceedings Article | 23 August 2024 Presentation + Paper

Design and performance of MIRS infrared imaging spectrometer onboard MMX mission

P. Bernardi, J.-M. Reess, M. Castelnau, F. Chapron, N. Nguyen-Tuong, S. Gauffre, B. Quertier, J. Parisot, M. Bonafous, D. Zeganadin, A. Barucci, S. Fornasier, F. Merlin, C. Imbert, V. Piou, E. Sawyer, N. Theret, M. Le Du, T. Iwata, H. Nakagawa, T. Nakamura

Proceedings Volume 13092, 130922J (2024) https://doi.org/10.1117/12.3018121

KEYWORDS: Detector arrays, Equipment, Spectroscopy, Mirrors, Design, Calibration, Mars, Infrared spectroscopy, Signal to noise ratio, Scanners, Camera shutters

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Proceedings Article | 23 August 2024 Poster + Paper

Low-frequency antenna design to observe the 21 cm global signal from the Dark Ages with the lunar telescope, TSUKUYOMI

Takeru Matsumoto, Yasumasa Yamasaki, Toshikazu Onishi, Satoru Iguchi, Toru Yamada, Daisuke Yamauchi, Fuminori Tsuchiya, Keitaro Takahashi, Naoki Isobe, Takahiro Iwata, Naoto Usami, Yutaro Sekimoto, Yasuyuki Miyazaki, Takanao Saiki, Osamu Mori, Tetsuo Yoshimitsu

Proceedings Volume 13092, 1309279 (2024) https://doi.org/10.1117/12.3018734

KEYWORDS: Antennas, Calibration, Resistance, Design, Capacitance, Simulations, Signal detection, Telescopes, Temperature metrology, Capacitors

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Proceedings Article | 23 August 2024 Presentation + Paper

Lunar meter-wave telescope (TSUKUYOMI) as one of Japanese lunar plans

Satoru Iguchi, Toru Yamada, Yasumasa Yamasaki, Toshikazu Onishi, Daisuke Yamauchi, Fuminori Tsuchiya, Keitaro Takahashi, Takeru Matsumoto, Naoki Isobe, Takahiro Iwata, Naoto Usami, Yutaro Sekimoto, Yasuyuki Miyazaki, Takanao Saiki, Osamu Mori, Tetsuo Yoshimitsu

Proceedings Volume 13092, 130922L (2024) https://doi.org/10.1117/12.3018410

KEYWORDS: Antennas, Calibration, Signal detection, Cosmology, Astronomy, Telescopes, Design, Exoplanets, Spectroscopy, Absorption

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Proceedings Article | 21 August 2024 Presentation + Paper

Status of geospace x-ray imager mission (GEO-X)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Masaki Numazawa, Yuki Sato, Yosuke Kawabata, Ryota Fuse, Shintaro Nakajima, Ralf Boden, Landon Kamps, Yuki Nobuhara, Shota Hirai, Tomokage Yoneyama, Kouichi Hagino, Yosuke Matsumoto, Keisuke Hosokawa, Satoshi Kasahara, Daiki Ishi, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Takefumi Mitani, Yasuhiro Kawakatsu, Takahiro Iwata, Hiroyuki Koizumi, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita

Proceedings Volume 13093, 130932E (2024) https://doi.org/10.1117/12.3018746

KEYWORDS: Satellites, X-rays, X-ray imaging, Magnetosphere, Spectroscopy

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SPIE Journal Paper | 12 September 2023

GEOspace X-ray imager (GEO-X)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Masaki Numazawa, Yosuke Kawabata, Shintaro Nakajima, Ryota Fuse, Ralf Boden, Landon Kamps, Tomokage Yoneyama, Kouichi Hagino, Yosuke Matsumoto, Keisuke Hosokawa, Satoshi Kasahara, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Takefumi Mitani, Yasuhiro Kawakatsu, Takahiro Iwata, Hiroyuki Koizumi, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita, Daiki Ishi, Aoto Fukushima, Ayata Inagaki, Yoko Ueda, Hiromi Morishita, Yukine Tsuji, Runa Sekiguchi, Takatoshi Murakawa, Kazuma Yamaguchi, Rei Ishikawa, Daiki Morimoto, Yudai Yamada, Shota Hirai, Yuki Nobuhara, Yownin Leung, Yamato Itoigawa, Ryo Onodera, Satoru Kotaki, Shotaro Nakamura, Ayumi Kiuchi, Takuya Matsumoto, Midori Hirota, Kazuto Kashiwakura

JATIS, Vol. 9, Issue 03, 034006, (September 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.3.034006

KEYWORDS: Satellites, X-rays, X-ray imaging, Magnetosphere, Solar processes, X-ray astronomy, Spatial resolution, Satellite imaging, X-ray telescopes, Simulations

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Proceedings Article | 31 August 2022 Presentation + Paper

GEO-X (GEOspace X-ray imager)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Yosuke Kawabata, Shintaro Nakajima, Landon Kamps, Masaki Numazawa, Tomokage Yoneyama, Kouichi Hagino, Yosuke Matsumoto, Keisuke Hosokawa, Satoshi Kasahara, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Takefumi Mitani, Yasuhiro Kawakatsu, Takahiro Iwata, Hiroyuki Koizumi, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita

Proceedings Volume 12181, 1218124 (2022) https://doi.org/10.1117/12.2629107

KEYWORDS: Satellites, X-rays, Magnetosphere, X-ray astronomy

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Proceedings Article | 6 August 2021 Poster + Paper

MIRS: an imaging spectrometer for the MMX mission

A. Bour, J. M. Reess, P. Bernardi, M. A. Barucci, M. Castelnau, M. Le Du, T. Iwata, H. Nakagawa, T. Nakamura, A. Doressoundiram, S. Fornasier

Proceedings Volume 11830, 118300G (2021) https://doi.org/10.1117/12.2600187

KEYWORDS: Spectroscopy, Sensors, Infrared spectroscopy, Mars, Space operations, Scanners, Telescopes, Mirrors, Interfaces, Infrared imaging

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Proceedings Article | 13 December 2020 Paper

GEO-X (GEOspace x-ray imager)

Yuichiro Ezoe, Ryu Funase, Harunori Nagata, Yoshizumi Miyoshi, Satoshi Kasahara, Hiroshi Nakajima, Ikuyuki Mitsuishi, Kumi Ishikawa, Junko Hiraga, Kazuhisa Mitsuda, Masaki Fujimoto, Munetaka Ueno, Atsushi Yamazaki, Hiroshi Hasegawa, Yosuke Matsumoto, Yasuhiro Kawakatsu, Takahiro Iwata, Hironori Sahara, Yoshiaki Kanamori, Kohei Morishita, Hiroyuki Koizumi, Makoto Mita, Takefumi Mitani, Masaki Numazawa, Landon Kamps, Yusuke Kawabata

Proceedings Volume 11444, 1144428 (2020) https://doi.org/10.1117/12.2560780

KEYWORDS: X-ray imaging, X-rays, X-ray astronomy, Satellites, X-ray optics, X-ray technology, Satellite imaging, Magnetosphere, Earth observing sensors, Spectroscopy

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Showing 5 of 9 publications

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