Tokoku Chihiro

トウコクチヒロ | Tokoku Chihiro

Affiliation and department：
Job title： Research Engineer(Research and Academic Staff)

Research field (1)： Particle, nuclear, cosmic-ray, and astrophysics - experiment

Research keywords (3)： Cryogenic Instrumentation , Instrumentation in Astronomy , Infrared Astronomy

Research theme for competitive and other funds (1)：

2015 - 2018 Pilot study for z-polarization production by using coherent Cherenkov radiation in THz frequency region

Papers (53)：

Yosuke Minowa, Yusei Koyama, Masayuki Akiyama, Sadman Ali, Takamasa Bando, Joshua Carter, David E. Chandler, Chi-Yi Chou, Jesse Cranney, Céline D'Orgeville, et al. Project overview and update on ULTIMATE-Subaru: the next-generation wide-field AO instrument for the Subaru telescope. Ground-based and Airborne Instrumentation for Astronomy X. 2024. 46-46
Mona El Morsy, Julien Lozi, Olivier Guyon, Thayne Currie, Sébastien Vievard, Julia Bryant, Chihiro Tokoku, Vincent Deo, Kyohoon Ahn, Fred Crous, et al. Exo-NINJA at Subaru: fiber-fed spectro-imaging of exoplanets and circumstellar disks at R~4000. Ground-based and Airborne Instrumentation for Astronomy X. 2024
Kenshi Yanagisawa, Chihiro Tokoku, Kentaro Motohara, Shinobu Ozaki, Yoshito Ono, Yosuke Minowa, Takashi Moriya, Masami Ouchi, Nozomu Tominaga, Masayuki Tanaka, et al. Compensation of defective pixels by mechanical shift of an NIR array detector used in the NINJA echelle spectrograph. Ground-based and Airborne Instrumentation for Astronomy X. 2024
Ichi Tanaka, Noboru Ebizuka, Chihiro Tokoku, Takashi Hattori, Yusei Koyama, Kentaro Motohara, Michael Lemmen, Brian Elms, Koji Omata, Yosuke Minowa, et al. Development of novel high-efficiency and wideband medium-dispersion grisms for MOIRCS at Subaru Telescope. Ground-based and Airborne Instrumentation for Astronomy X. 2024
Keisuke Shinozaki, Yoichi Sato, Haruka Fukuoka, Chihiro Tokoku, Takao Nakagawa, Hiroyuki Sugita, Shoji Tsunematsu, Kenichi Kanao, Katsuhiro Narasaki. Cooling performance of Joule Thomson coolers with straight heat exchangers for space science missions. Cryogenics. 2022. 128. 103575-103575

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MISC (37)：

海老塚昇, 細畠拓也, 竹田真宏, 山形豊, 岡本隆之, 佐々木実, 西牧真木夫, 山本和也, 西尾幸暢, 仲内悠祐, et al. 新しい高分散・高効率・広帯域透過型回折格子. 日本天文学会2023年秋季年会. 2023
鈴木竜二, 浦口史寛, 池之上文吾, 田中陽子, 東谷千比呂, 服部雅之, 早野裕. TMT 第一期観測装置 IRIS の開発(冷却下における高反射低波面誤差鏡の実現にむけて). 日本天文学会2023年秋季年会. 2023
西川淳, 早野裕, 入部正継, 山本広大, 津久井遼, 米田謙太, 東谷千比呂, 村上尚史, 淺野瑞基, 田村元秀, et al. 高コントラスト観測法 Coherent Differential Imaging on Speckle Area Nulling (CDI-SAN) の開発. 日本天文学会2022年秋季年会. 2022
守屋尭, 吉田道利, 東谷千比呂, 本原顕太郎, 尾崎忍夫, 柳澤顕史, 大野良人, 小山佑世, 冨永望, 大内正己, et al. すばる望遠鏡広帯域分光装置 NINJA:科学目標. 日本天文学会2022年秋季年会. 2022
戸部裕史, 石川和毅, 澤田健一郎, 東谷千比呂, 中川貴雄, 佐藤英一. Cu-Al-Mn形状記憶合金を用いた機械式ヒートスイッチの開発. 銅と銅合金. 2022. 2022年第61巻. 1. 334-338

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Lectures and oral presentations (14)：

NINJA : Subaru Optical-to-NIR spectrograph optimized for LTAO
(SUPER-IRNET Workshop 2023 in Mitaka 2023)
すばる望遠鏡広帯域分光装置 NINJA:装置概要
(日本天文学会2022年秋季年会(新潟大学, ハイブリッド開催) 2022)
NINJA : an LTAO assisted optical and near-infrared spectrograph of Subaru Telescope
(SPIE Astronomical Telescopes + Instrumentation, Ground-based and Airborne Instrumentation for Astronomy IX (Montreal, Quebec, Canada) 2022)
冷却宇宙望遠鏡を構成する低温要素技術開発
(日本天文学会2021年春季年会(東京工業大学, ハイブリッド開催) 2021)
SPICA ペイロードモジュールの概念設計
(日本天文学会2018年秋季年会(兵庫県立大学) 2018)

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Education (2)：

2001 - 2006 Tohoku University Astronomical Institute Doctor Course
1999 - 2001 Tohoku University Astronomical Institute Master Course

Professional career (1)：

Ph.D. (Tohoku University)

Work history (11)：

2023/09 - 現在 National Institutes of Natural Sciences, National Astronomical Observatory of Japan Advanced Technology Center Research Engineer
2022/02 - 2023/08 National Institutes of Natural Sciences, Astronomical Observatory of Japan Advanced Technology Center Project Assistant Professor
2021/04 - 2022/01 National Institutes of Natural Sciences, National Astronomical Observatory of Japan Advanced Technology Center Senior Specialist
2016/04 - 2021/03 Japan Aerospace Exploration Agency Department of Space Astronomy and Astrophysics Invited Researcher
2014/04 - 2016/03 Research Center for Electron Photon Science, Tohoku University Technical Staff

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