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24 results on '"Mitani, Takefumi"'

1. Transient ionization of the mesosphere during auroral breakup: Arase satellite and ground-based conjugate observations at Syowa Station

Author

80342616, 90785495, Kataoka, Ryuho, Nishiyama, Takanori, Tanaka, Yoshimasa, Kadokura, Akira, Uchida, Herbert Akihito, Ebihara, Yusuke, Ejiri, Mitsumu K., Tomikawa, Yoshihiro, Tsutsumi, Masaki, Sato, Kaoru, Miyoshi, Yoshizumi, Shiokawa, Kazuo, Kurita, Satoshi, Kasahara, Yoshiya, Ozaki, Mitsunori, Hosokawa, Keisuke, Matsuda, Shoya, Shinohara, Iku, Takashima, Takeshi, Sato, Tatsuhiko, Mitani, Takefumi, Hori, Tomoaki, Higashio, Nana, 80342616, 90785495, Kataoka, Ryuho, Nishiyama, Takanori, Tanaka, Yoshimasa, Kadokura, Akira, Uchida, Herbert Akihito, Ebihara, Yusuke, Ejiri, Mitsumu K., Tomikawa, Yoshihiro, Tsutsumi, Masaki, Sato, Kaoru, Miyoshi, Yoshizumi, Shiokawa, Kazuo, Kurita, Satoshi, Kasahara, Yoshiya, Ozaki, Mitsunori, Hosokawa, Keisuke, Matsuda, Shoya, Shinohara, Iku, Takashima, Takeshi, Sato, Tatsuhiko, Mitani, Takefumi, Hori, Tomoaki, and Higashio, Nana

Abstract

Transient mesospheric echo in the VHF range was detected at an altitude of 65–70 km during the auroral breakup that occurred from 2220 to 2226 UT on June 30, 2017. During this event, the footprint of the Arase satellite was located within the field of view of the all-sky imagers at Syowa Station in the Antarctic. Auroral observations at Syowa Station revealed the dominant precipitation of relatively soft electrons during the auroral breakup. A corresponding spike in cosmic noise absorption was also observed at Syowa Station, while the Arase satellite observed a flux enhancement of > 100 keV electrons and a broadband noise without detecting chorus waves or electromagnetic ion cyclotron waves. A general-purpose Monte Carlo particle transport simulation code was used to quantitatively evaluate the ionization in the middle atmosphere. Results of this study indicate that the precipitation of energetic electrons of > 100 keV, rather than X-rays from the auroral electrons, played a dominant role in the transient and deep (65–70 km) mesospheric ionization during the observed auroral breakup.

Published
2019

2. Software-type Wave–Particle Interaction Analyzer on board the Arase satellite

Author

10215254, 80270437, Katoh, Yuto, Kojima, Hirotsugu, Hikishima, Mitsuru, Takashima, Takeshi, Asamura, Kazushi, Miyoshi, Yoshizumi, Kasahara, Yoshiya, Kasahara, Satoshi, Mitani, Takefumi, Higashio, Nana, Matsuoka, Ayako, Ozaki, Mitsunori, Yagitani, Satoshi, Yokota, Shoichiro, Matsuda, Shoya, Kitahara, Masahiro, Shinohara, Iku, 10215254, 80270437, Katoh, Yuto, Kojima, Hirotsugu, Hikishima, Mitsuru, Takashima, Takeshi, Asamura, Kazushi, Miyoshi, Yoshizumi, Kasahara, Yoshiya, Kasahara, Satoshi, Mitani, Takefumi, Higashio, Nana, Matsuoka, Ayako, Ozaki, Mitsunori, Yagitani, Satoshi, Yokota, Shoichiro, Matsuda, Shoya, Kitahara, Masahiro, and Shinohara, Iku

Published
2018

3. Data processing in Software-type Wave–Particle Interaction Analyzer onboard the Arase satellite

Author

10215254, 80270437, Hikishima, Mitsuru, Kojima, Hirotsugu, Katoh, Yuto, Kasahara, Yoshiya, Kasahara, Satoshi, Mitani, Takefumi, Higashio, Nana, Matsuoka, Ayako, Miyoshi, Yoshizumi, Asamura, Kazushi, Takashima, Takeshi, Yokota, Shoichiro, Kitahara, Masahiro, Matsuda, Shoya, 10215254, 80270437, Hikishima, Mitsuru, Kojima, Hirotsugu, Katoh, Yuto, Kasahara, Yoshiya, Kasahara, Satoshi, Mitani, Takefumi, Higashio, Nana, Matsuoka, Ayako, Miyoshi, Yoshizumi, Asamura, Kazushi, Takashima, Takeshi, Yokota, Shoichiro, Kitahara, Masahiro, and Matsuda, Shoya

Abstract

The software-type wave–particle interaction analyzer (S-WPIA) is an instrument package onboard the Arase satellite, which studies the magnetosphere. The S-WPIA represents a new method for directly observing wave–particle interactions onboard a spacecraft in a space plasma environment. The main objective of the S-WPIA is to quantitatively detect wave–particle interactions associated with whistler-mode chorus emissions and electrons over a wide energy range (from several keV to several MeV). The quantity of energy exchanges between waves and particles can be represented as the inner product of the wave electric-field vector and the particle velocity vector. The S-WPIA requires accurate measurement of the phase difference between wave and particle gyration. The leading edge of the S-WPIA system allows us to collect comprehensive information, including the detection time, energy, and incoming direction of individual particles and instantaneous-wave electric and magnetic fields, at a high sampling rate. All the collected particle and waveform data are stored in the onboard large-volume data storage. The S-WPIA executes calculations asynchronously using the collected electric and magnetic wave data, data acquired from multiple particle instruments, and ambient magnetic-field data. The S-WPIA has the role of handling large amounts of raw data that are dedicated to calculations of the S-WPIA. Then, the results are transferred to the ground station. This paper describes the design of the S-WPIA and its calculations in detail, as implemented onboard Arase.

Published
2018

4. Geospace exploration project ERG

Author

Miyoshi, Yoshizumi, Shinohara, Iku, Takashima, Takeshi, Asamura, Kazushi, Higashio, Nana, Mitani, Takefumi, Kasahara, Satoshi, Yokota, Shoichiro, Kazama, Yoichi, Wang, Shiang-Yu, Tam, Sunny W. Y., Ho, Paul T. P., Kasahara, Yoshiya, Kasaba, Yasumasa, Yagitani, Satoshi, Matsuoka, Ayako, Kojima, Hirotsugu, Katoh, Yuto, Shiokawa, Kazuo, Seki, Kanako, 三好, 由純, 篠原, 育, 高島, 健, 浅村, 和史, 東尾, 奈々, 三谷, 烈史, 笠原, 慧, 横田, 勝一郎, 風間, 洋一, 笠原, 禎也, 笠羽, 康正, 八木谷, 聡, 松岡, 彩子, 小嶋, 浩嗣, 加藤, 雄人, 塩川, 和夫, 関, 華奈子, Miyoshi, Yoshizumi, Shinohara, Iku, Takashima, Takeshi, Asamura, Kazushi, Higashio, Nana, Mitani, Takefumi, Kasahara, Satoshi, Yokota, Shoichiro, Kazama, Yoichi, Wang, Shiang-Yu, Tam, Sunny W. Y., Ho, Paul T. P., Kasahara, Yoshiya, Kasaba, Yasumasa, Yagitani, Satoshi, Matsuoka, Ayako, Kojima, Hirotsugu, Katoh, Yuto, Shiokawa, Kazuo, Seki, Kanako, 三好, 由純, 篠原, 育, 高島, 健, 浅村, 和史, 東尾, 奈々, 三谷, 烈史, 笠原, 慧, 横田, 勝一郎, 風間, 洋一, 笠原, 禎也, 笠羽, 康正, 八木谷, 聡, 松岡, 彩子, 小嶋, 浩嗣, 加藤, 雄人, 塩川, 和夫, and 関, 華奈子

Abstract

著者人数: 20名, Accepted: 2018-05-15

Published
2018

5. あらせ (ERG) 衛星が観測した宇宙嵐

Author

東尾, 奈々, 三谷, 烈史, 笠原, 慧, 横田, 勝一郎, 王, 祥宇, 風間, 洋一, 浅村, 和史, 笠原, 禎也, 松岡, 彩子, 三好, 由純, 高島, 健, 篠原, 育, Higashio, Nana, Mitani, Takefumi, Kasahara, Satoshi, Yokota, Shoichiro, Wang, Shiang-Yu, Kazama, Yoichi, Kasahara, Yoshiya, Matsuoka, Ayako, Miyoshi, Yoshizumi, Takashima, Takeshi, Shinohara, Iku, 東尾, 奈々, 三谷, 烈史, 笠原, 慧, 横田, 勝一郎, 王, 祥宇, 風間, 洋一, 浅村, 和史, 笠原, 禎也, 松岡, 彩子, 三好, 由純, 高島, 健, 篠原, 育, Higashio, Nana, Mitani, Takefumi, Kasahara, Satoshi, Yokota, Shoichiro, Wang, Shiang-Yu, Kazama, Yoichi, Kasahara, Yoshiya, Matsuoka, Ayako, Miyoshi, Yoshizumi, Takashima, Takeshi, and Shinohara, Iku

Abstract

会議情報: 第18回宇宙科学シンポジウム (2018年1月9日-10日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 著者人数: 12名, Meeting Information: 18th Space Science Symposium (January 9-10, 2018. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan

Published
2018

6. Pulsating aurora from electron scattering by chorus waves

Author

Kasahara, Satoshi, Miyoshi, Yoshizumi, Yokota, Shoichiro, Mitani, Takefumi, Kasahara, Yoshiya, Matsuda, Shoya, Kumamoto, Atsushi, Matsuoka, Ayako, Kazama, Yoichi, Frey, H. U., Angelopoulos, V., Kurita, Satoshi, Keika, Kunihiro, Seki, Kanako, Shinohara, Iku, 笠原, 慧, 三好, 由純, 横田, 勝一郎, 三谷, 烈史, 笠原, 禎也, 松田, 昇也, 熊本, 篤志, 松岡, 彩子, 風間, 洋一, 栗田, 怜, 桂華, 邦裕, 関, 華奈子, 篠原, 育, Kasahara, Satoshi, Miyoshi, Yoshizumi, Yokota, Shoichiro, Mitani, Takefumi, Kasahara, Yoshiya, Matsuda, Shoya, Kumamoto, Atsushi, Matsuoka, Ayako, Kazama, Yoichi, Frey, H. U., Angelopoulos, V., Kurita, Satoshi, Keika, Kunihiro, Seki, Kanako, Shinohara, Iku, 笠原, 慧, 三好, 由純, 横田, 勝一郎, 三谷, 烈史, 笠原, 禎也, 松田, 昇也, 熊本, 篤志, 松岡, 彩子, 風間, 洋一, 栗田, 怜, 桂華, 邦裕, 関, 華奈子, and 篠原, 育

Abstract

著者人数: 15名, Accepted: 2017-12-21

Published
2018

7. Charged particle measurements in the radiation belts by ERG

Author

Asamura, Kazushi, Higashio, Nana, Hirahara, Masafumi, Kasahara, Satoshi, Matsumoto, Haruhisa, Mitani, Takefumi, Miyake, Wataru, Suto, Yushi, Takashima, Takeshi, Wang, B.-J, Wang, Shiang-Yu, Yamamoto, Kazuhiro, Yokota, Shoichiro, 浅村, 和史, 東尾, 奈々, 平原, 聖文, 笠原, 慧, 風間, 洋一, 松本, 晴久, 三谷, 烈史, 三宅, 亙, 須藤, 雄志, 高島, 健, Shiang-Yu, Wang, 山本, 和弘, 横田, 勝一郎, Asamura, Kazushi, Higashio, Nana, Hirahara, Masafumi, Kasahara, Satoshi, Matsumoto, Haruhisa, Mitani, Takefumi, Miyake, Wataru, Suto, Yushi, Takashima, Takeshi, Wang, B.-J, Wang, Shiang-Yu, Yamamoto, Kazuhiro, Yokota, Shoichiro, 浅村, 和史, 東尾, 奈々, 平原, 聖文, 笠原, 慧, 風間, 洋一, 松本, 晴久, 三谷, 烈史, 三宅, 亙, 須藤, 雄志, 高島, 健, Shiang-Yu, Wang, 山本, 和弘, and 横田, 勝一郎

Abstract

会議情報: 第17回宇宙科学シンポジウム (2017年1月5日-6日. 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)相模原キャンパス), 相模原市, 神奈川県, 著者人数: 14名, Meeting Information: 17th Space Science Symposium (January 5-6, 2017. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)Sagamihara Campus), Sagamihara, Kanagawa Japan

Published
2017

8. 次世代の宇宙ガンマ線検出器用のCdTe半導体と多チャンネルアナログLSIの開発

Author

Nakazawa, Kazuhiro, Takahashi, Tadayuki, Watanabe, Shin, Mitani, Takefumi, Kobayashi, Yoshihito, Tanaka, Takaaki, Inoue, Hokuto, Nomachi, Masaharu, Nakamura, Hidehito, Fukazawa, Yasushi, 中澤 知洋, 高橋 忠幸, 渡辺 伸, 三谷 烈史, 小林 謙仁, 田中 孝明, 井上 北斗, 能町 正治, 中村 秀仁, 深沢 泰司, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Watanabe, Shin, Mitani, Takefumi, Kobayashi, Yoshihito, Tanaka, Takaaki, Inoue, Hokuto, Nomachi, Masaharu, Nakamura, Hidehito, Fukazawa, Yasushi, 中澤 知洋, 高橋 忠幸, 渡辺 伸, 三谷 烈史, 小林 謙仁, 田中 孝明, 井上 北斗, 能町 正治, 中村 秀仁, and 深沢 泰司

Published
2015

9. SpaceWireを用いた読み出しシステムの開発

Author

Nakamura, Hidehito, Nomachi, Masaharu, Ishii, Hiroyasu, Shimada, Yoshihisa, Takahashi, Tadayuki, Nakazawa, Kazuhiro, Mitani, Takefumi, Kobayashi, Yoshihito, Inoue, Hokuto, Tanaka, Takaaki, 中村 秀仁, 能町 正治, 石井 裕康, 島田 芳永, 高橋 忠幸, 中澤 知洋, 三谷 烈史, 小林 謙仁, 井上 北斗, 田中 孝明, Nakamura, Hidehito, Nomachi, Masaharu, Ishii, Hiroyasu, Shimada, Yoshihisa, Takahashi, Tadayuki, Nakazawa, Kazuhiro, Mitani, Takefumi, Kobayashi, Yoshihito, Inoue, Hokuto, Tanaka, Takaaki, 中村 秀仁, 能町 正治, 石井 裕康, 島田 芳永, 高橋 忠幸, 中澤 知洋, 三谷 烈史, 小林 謙仁, 井上 北斗, and 田中 孝明

Published
2015

10. In-Orbit Performance of the Hard X-Ray Detector on Board Suzaku

Author

国分, 紀秀, 牧島, 一夫, 高橋, 忠幸, 村上, 敏夫, 田代, 信, 深沢, 泰司, 釜江, 常好, 中澤, 知洋, 山岡, 和貴, 寺田, 幸功, 米徳, 大輔, 渡辺, 伸, 玉川, 徹, 水野, 恒史, 久保田, あや, 磯部, 直樹, 高橋, 勲, 佐藤, 悟朗, 高橋, 弘充, Hong, Soojing, 川原田, 円, 川埜, 直美, 三谷, 烈史, 村島, 未生, 鈴木, 雅也, 田中, 孝明, 大貫, 宏祐, 田村, 健一, 蛭田, 達朗, 岸下, 徹一, 武田, 伸一郎, 勝田, 隼一郎, 牛尾, 雅佳, 石川, 真之介, 小高, 裕和, Kokubun, Motohide, Makishima, Kazuo, Takahashi, Tadayuki, Murakami, Toshio, Tashiro, Makoto, Fukazawa, Yasushi, Kamae, Tuneyoshi, Madejski, Greg M., Nakazawa, Kazuhiro, Yamaoka, Kazutaka, Terada, Yukikatsu, Yonetoku, Daisuke, Watanabe, Shin, Tamagawa, Toru, Mizuno, Tsunefumi, Kubota, Aya, Isobe, Naoki, Takahashi, Isao, Sato, Goro, Takahashi, Hiromitsu, Kawaharada, Madoka, Kawano, Naomi, Mitani, Takefumi, Murashima, Mio, Suzuki, Masaya, Abe, Keiichi, Miyawaki, Ryouhei, Ohno, Masanori, Tanaka, Takaaki, Yanagida, Takayuki, Itoh, Takeshi, Ohnuki, Kousuke, Tamura, Ken-ichi, Endo, Yasuhiko, Hirakuri, Shinya, Hiruta, Tatsuro, Kitaguchi, Takao, Kishishita, Tetsuichi, Sugita, Satoshi, Takahashi, Takuya, Takeda, Shin'ichiro, Enoto, Teruaki, Hirasawa, Ayumi, Katsuta, Jun'ichiro, Matsumura, Satoshi, Onda, Kaori, Sato, Mitsuhiro, Ushio, Masayoshi, Ishikawa, Shin-nosuke, Murase, Koichi, Odaka, Hirokazu, Suzuki, Masanobu, Yaji, Yuichi, Yamada, Shinya, Yamasaki, Tomonori, Yuasa, Takayuki, the HXD team, 国分, 紀秀, 牧島, 一夫, 高橋, 忠幸, 村上, 敏夫, 田代, 信, 深沢, 泰司, 釜江, 常好, 中澤, 知洋, 山岡, 和貴, 寺田, 幸功, 米徳, 大輔, 渡辺, 伸, 玉川, 徹, 水野, 恒史, 久保田, あや, 磯部, 直樹, 高橋, 勲, 佐藤, 悟朗, 高橋, 弘充, Hong, Soojing, 川原田, 円, 川埜, 直美, 三谷, 烈史, 村島, 未生, 鈴木, 雅也, 田中, 孝明, 大貫, 宏祐, 田村, 健一, 蛭田, 達朗, 岸下, 徹一, 武田, 伸一郎, 勝田, 隼一郎, 牛尾, 雅佳, 石川, 真之介, 小高, 裕和, Kokubun, Motohide, Makishima, Kazuo, Takahashi, Tadayuki, Murakami, Toshio, Tashiro, Makoto, Fukazawa, Yasushi, Kamae, Tuneyoshi, Madejski, Greg M., Nakazawa, Kazuhiro, Yamaoka, Kazutaka, Terada, Yukikatsu, Yonetoku, Daisuke, Watanabe, Shin, Tamagawa, Toru, Mizuno, Tsunefumi, Kubota, Aya, Isobe, Naoki, Takahashi, Isao, Sato, Goro, Takahashi, Hiromitsu, Kawaharada, Madoka, Kawano, Naomi, Mitani, Takefumi, Murashima, Mio, Suzuki, Masaya, Abe, Keiichi, Miyawaki, Ryouhei, Ohno, Masanori, Tanaka, Takaaki, Yanagida, Takayuki, Itoh, Takeshi, Ohnuki, Kousuke, Tamura, Ken-ichi, Endo, Yasuhiko, Hirakuri, Shinya, Hiruta, Tatsuro, Kitaguchi, Takao, Kishishita, Tetsuichi, Sugita, Satoshi, Takahashi, Takuya, Takeda, Shin'ichiro, Enoto, Teruaki, Hirasawa, Ayumi, Katsuta, Jun'ichiro, Matsumura, Satoshi, Onda, Kaori, Sato, Mitsuhiro, Ushio, Masayoshi, Ishikawa, Shin-nosuke, Murase, Koichi, Odaka, Hirokazu, Suzuki, Masanobu, Yaji, Yuichi, Yamada, Shinya, Yamasaki, Tomonori, Yuasa, Takayuki, and the HXD team

Abstract

著者人数: 57名

Published
2015

11. Double-Side Silicon Strip Detector (DSSD) with VA32TA Applied for Medium Energy Particle Detector in High-Count Rate Environment

Author

高島, 健, 三谷, 烈史, 中澤, 知洋, 田島, 宏康, 高橋, 忠幸, 田中, 孝明, Uno, S., 内堀, 幸夫, 北村, 尚, Takashima, Takeshi, Mitani, Takefumi, Nakazawa, Kazuhiro, Tajima, Hiroyasu, Takahashi, Tadayuki, Tanaka, Takaaki, Uchihori, Yukio, Kitamura, Hisashi, 高島, 健, 三谷, 烈史, 中澤, 知洋, 田島, 宏康, 高橋, 忠幸, 田中, 孝明, Uno, S., 内堀, 幸夫, 北村, 尚, Takashima, Takeshi, Mitani, Takefumi, Nakazawa, Kazuhiro, Tajima, Hiroyasu, Takahashi, Tadayuki, Tanaka, Takaaki, Uchihori, Yukio, and Kitamura, Hisashi

Published
2015

12. Hard X-Ray Detector (HXD) on Board Suzaku

Author

高橋, 忠幸, 阿部, 圭一, 遠藤, 康彦, 江副, 祐一郎, 深沢, 泰司, 平栗, 慎也, Hong, Soojing, 堀井, 通宏, 井上, 北斗, 磯部, 直樹, 伊藤, 健, 伊予本, 直子, 釜江, 常好, 笠間, 太介, 片岡, 淳, 加藤, 博, 川原田, 円, 川埜, 直美, 川添, 哲志, 岸下, 徹一, 北口, 貴雄, 小林, 謙仁, 国分, 紀秀, 古宇田, 学, 三谷, 烈史, 中澤, 知洋, 大貫, 宏祐, 佐藤, 悟朗, 武田, 伸一郎, 田村, 健一, 田村, 隆幸, 田中, 孝明, 谷畑, 千春, 内山, 泰伸, 渡辺, 伸, Takahashi, Tadayuki, Abe, Keiichi, Endo, Manabu, Endo, Yasuhiko, Ezoe, Yuuichiro, Fukazawa, Yasushi, Hamaya, Masahito, Hirakuri, Shinya, Horii, Michihiro, Inoue, Hokuto, Isobe, Naoki, Itoh, Takeshi, Iyomoto, Naoko, Kamae, Tuneyoshi, Kasama, Daisuke, Kataoka, Jun, Kato, Hiroshi, Kawaharada, Madoka, Kawano, Naomi, Kawashima, Kengo, Kawasoe, Satoshi, Kishishita, Tetsuichi, Kitaguchi, Takao, Kobayashi, Yoshihito, Kokubun, Motohide, Kotoku, Jun'ichi, Kouda, Manabu, Kubota, Aya, Kuroda, Yoshikatsu, Madejski, Greg, Makishima, Kazuo, Masukawa, Kazunori, Matsumoto, Yukari, Mitani, Takefumi, Miyawaki, Ryohei, Mizuno, Tsunefumi, Mori, Kunishiro, Mori, Masanori, Murashima, Mio, Murakami, Toshio, Nakazawa, Kazuhiro, Niko, Hisako, Nomachi, Masaharu, Okada, Yuu, Ohno, Masanori, Oonuki, Kousuke, Ota, Naomi, Ozawa, Hideki, Sato, Goro, Shinoda, Shingo, Sugiho, Masahiko, Suzuki, Masaya, Taguchi, Koji, Takahashi, Hiromitsu, Takahashi, Isao, Takeda, Shin'ichiro, Tamura, Ken-ichi, Tamura, Takayuki, Tanaka, Takaaki, Tanihara, Chiharu, Tashiro, Makoto, Terada, Yukikatsu, Tominaga, Shin'ya, Uchiyama, Yasunobu, Watanabe, Shin, Yamaoka, Kazutaka, Yanagida, Takayuki, Yonetoku, Daisuke, 高橋, 忠幸, 阿部, 圭一, 遠藤, 康彦, 江副, 祐一郎, 深沢, 泰司, 平栗, 慎也, Hong, Soojing, 堀井, 通宏, 井上, 北斗, 磯部, 直樹, 伊藤, 健, 伊予本, 直子, 釜江, 常好, 笠間, 太介, 片岡, 淳, 加藤, 博, 川原田, 円, 川埜, 直美, 川添, 哲志, 岸下, 徹一, 北口, 貴雄, 小林, 謙仁, 国分, 紀秀, 古宇田, 学, 三谷, 烈史, 中澤, 知洋, 大貫, 宏祐, 佐藤, 悟朗, 武田, 伸一郎, 田村, 健一, 田村, 隆幸, 田中, 孝明, 谷畑, 千春, 内山, 泰伸, 渡辺, 伸, Takahashi, Tadayuki, Abe, Keiichi, Endo, Manabu, Endo, Yasuhiko, Ezoe, Yuuichiro, Fukazawa, Yasushi, Hamaya, Masahito, Hirakuri, Shinya, Horii, Michihiro, Inoue, Hokuto, Isobe, Naoki, Itoh, Takeshi, Iyomoto, Naoko, Kamae, Tuneyoshi, Kasama, Daisuke, Kataoka, Jun, Kato, Hiroshi, Kawaharada, Madoka, Kawano, Naomi, Kawashima, Kengo, Kawasoe, Satoshi, Kishishita, Tetsuichi, Kitaguchi, Takao, Kobayashi, Yoshihito, Kokubun, Motohide, Kotoku, Jun'ichi, Kouda, Manabu, Kubota, Aya, Kuroda, Yoshikatsu, Madejski, Greg, Makishima, Kazuo, Masukawa, Kazunori, Matsumoto, Yukari, Mitani, Takefumi, Miyawaki, Ryohei, Mizuno, Tsunefumi, Mori, Kunishiro, Mori, Masanori, Murashima, Mio, Murakami, Toshio, Nakazawa, Kazuhiro, Niko, Hisako, Nomachi, Masaharu, Okada, Yuu, Ohno, Masanori, Oonuki, Kousuke, Ota, Naomi, Ozawa, Hideki, Sato, Goro, Shinoda, Shingo, Sugiho, Masahiko, Suzuki, Masaya, Taguchi, Koji, Takahashi, Hiromitsu, Takahashi, Isao, Takeda, Shin'ichiro, Tamura, Ken-ichi, Tamura, Takayuki, Tanaka, Takaaki, Tanihara, Chiharu, Tashiro, Makoto, Terada, Yukikatsu, Tominaga, Shin'ya, Uchiyama, Yasunobu, Watanabe, Shin, Yamaoka, Kazutaka, Yanagida, Takayuki, and Yonetoku, Daisuke

Abstract

著者人数: 69名

Published
2015

13. Design and Performance of the Soft Gamma-Ray Detector for the NeXT Mission

Author

田島, 宏康, 釜江, 常好, Madejski, G., 三谷, 烈史, 中澤, 知洋, 田中, 孝明, 高橋, 忠幸, 渡辺, 伸, 深沢, 泰司, 五十川, 知子, 片岡, 淳, 国分, 紀秀, 牧島, 一夫, 寺田, 幸功, 能町, 正治, 田代, 信, Tajima, Hiroyasu, Kamae, Tsuneyoshi, Mitani, Takefumi, Nakazawa, Kazuhiro, Tanaka, Takaaki, Takahashi, Tadayuki, Watanabe, Shin, Fukazawa, Yasushi, Ikagawa, T., Kataoka, Jun, Kokubun, Motohide, Makishima, Kazuo, Terada, Yukikatsu, Nomachi, Masaharu, Tashiro, Makoto, 田島, 宏康, 釜江, 常好, Madejski, G., 三谷, 烈史, 中澤, 知洋, 田中, 孝明, 高橋, 忠幸, 渡辺, 伸, 深沢, 泰司, 五十川, 知子, 片岡, 淳, 国分, 紀秀, 牧島, 一夫, 寺田, 幸功, 能町, 正治, 田代, 信, Tajima, Hiroyasu, Kamae, Tsuneyoshi, Mitani, Takefumi, Nakazawa, Kazuhiro, Tanaka, Takaaki, Takahashi, Tadayuki, Watanabe, Shin, Fukazawa, Yasushi, Ikagawa, T., Kataoka, Jun, Kokubun, Motohide, Makishima, Kazuo, Terada, Yukikatsu, Nomachi, Masaharu, and Tashiro, Makoto

Abstract

著者人数: 16名

Published
2015

14. Performance of a Low Noise Front-end ASIC for Si/CdTe Detectors in Compton Gamma-ray Telescope

Author

田島, 宏康, 中本, 達也, 田中, 孝明, 宇野, 進吾, 三谷, 烈史, Eduardo do Couto e Silva, 深沢, 泰司, 釜江, 常好, Madejski, Grzegorz, Marlow, Daniel, 中澤, 知洋, 能町, 正治, 岡田, 祐, 高橋, 忠幸, Tajima, Hiroyasu, Nakamoto, Tatsuya, Tanaka, Takaaki, Uno, Shingo, Mitani, Takefumi, Fukazawa, Yasushi, Kamae, Tsuneyoshi, Nakazawa, Kazuhiro, Nomachi, Masaharu, Okada, Yu, Takahashi, Tadayuki, 田島, 宏康, 中本, 達也, 田中, 孝明, 宇野, 進吾, 三谷, 烈史, Eduardo do Couto e Silva, 深沢, 泰司, 釜江, 常好, Madejski, Grzegorz, Marlow, Daniel, 中澤, 知洋, 能町, 正治, 岡田, 祐, 高橋, 忠幸, Tajima, Hiroyasu, Nakamoto, Tatsuya, Tanaka, Takaaki, Uno, Shingo, Mitani, Takefumi, Fukazawa, Yasushi, Kamae, Tsuneyoshi, Nakazawa, Kazuhiro, Nomachi, Masaharu, Okada, Yu, and Takahashi, Tadayuki

Abstract

著者人数：14名

Published
2015

15. Application of CdTe for the NeXT Mission

Author

高橋, 忠幸, 中澤, 知洋, 渡辺, 伸, 佐藤, 悟朗, 三谷, 烈史, 田中, 孝明, 大貫, 宏祐, 田村, 健一, 田島, 宏康, 釜江, 常好, Madejski, Greg, 能町, 正治, 深沢, 泰司, 牧島, 一夫, 国分, 紀秀, 寺田, 幸功, 片岡, 淳, 田代, 信, Takahashi, Tadayuki, Nakazawa, Kazuhiro, Watanabe, Shin, Sato, Goro, Mitani, Takefumi, Tanaka, Takaaki, Oonuki, Kousuke, Tamura, Ken'ichi, Tajima, Hiroyasu, Kamae, Tuneyoshi, Nomachi, Masaharu, Fukazawa, Yasushi, Makishima, Kazuo, Kokubun, Motohide, Terada, Yukikatsu, Kataoka, Jun, Tashiro, Makoto, 高橋, 忠幸, 中澤, 知洋, 渡辺, 伸, 佐藤, 悟朗, 三谷, 烈史, 田中, 孝明, 大貫, 宏祐, 田村, 健一, 田島, 宏康, 釜江, 常好, Madejski, Greg, 能町, 正治, 深沢, 泰司, 牧島, 一夫, 国分, 紀秀, 寺田, 幸功, 片岡, 淳, 田代, 信, Takahashi, Tadayuki, Nakazawa, Kazuhiro, Watanabe, Shin, Sato, Goro, Mitani, Takefumi, Tanaka, Takaaki, Oonuki, Kousuke, Tamura, Ken'ichi, Tajima, Hiroyasu, Kamae, Tuneyoshi, Nomachi, Masaharu, Fukazawa, Yasushi, Makishima, Kazuo, Kokubun, Motohide, Terada, Yukikatsu, Kataoka, Jun, and Tashiro, Makoto

Abstract

著者人数：18名

Published
2015

16. Development of low-noise double-sided silicon strip detector for cosmic soft gamma-ray compton camera

Author

Fukazawa, Yasushi, Nakamoto, Tatsuya, Sawamoto, Naoyuki, Uno, Shingo, Ohsugi, Takashi, Tajima, Hiroyasu, Takahashi, Tadayuki, Mitani, Takefumi, Tanaka, Takaaki, Nakazawa, Kazuhiro, Fukazawa, Yasushi, Nakamoto, Tatsuya, Sawamoto, Naoyuki, Uno, Shingo, Ohsugi, Takashi, Tajima, Hiroyasu, Takahashi, Tadayuki, Mitani, Takefumi, Tanaka, Takaaki, and Nakazawa, Kazuhiro

Abstract

Double-sided silicon strip detectors (DSSD) provide a very promising technology for constructing a Compton Camera, which is expected to provide a high-sensitivity soft gamma-ray observation in the 0.1–20 MeV energy range. The merits of DSSD are the high energy resolution, high scattering efficiency, low radio-activation in the orbit, moderate radiation hardness, smaller Doppler broadening, large size, and stable performance. A key feature for optimal performance is the low noise level of the DSSD and the attached frontend electronics. We minimized the noise by optimization of the electrode geometry of the DSSD. We have thus obtained an energy resolution of 1.3 keV (FWHM) for 60 keV and 122 keV at -10◦C. It was found that the detection efficiency for gamma-rays was uniform over the DSSD and the signal charge split between neighboring strips was not significant. We also confirmed that the Compton imaging by two DSSDs achieved a good angular resolution close to the Doppler-broadening limit.

Published
2005

17. Results of a Si/CdTe Compton Telescope

Author

Oonuki, Kousuke, Tanaka, Takaaki, Watanabe, Shin, Takeda, Shin'ichiro, Nakazawa, Kazuhiro, Mitani, Takefumi, Takahashi, Tadayuki, Tajima, Hiroyasu, Fukazawa, Yasushi, Nomachi, Masaharu, Oonuki, Kousuke, Tanaka, Takaaki, Watanabe, Shin, Takeda, Shin'ichiro, Nakazawa, Kazuhiro, Mitani, Takefumi, Takahashi, Tadayuki, Tajima, Hiroyasu, Fukazawa, Yasushi, and Nomachi, Masaharu

Abstract

We have been developing a semiconductor Compton telescope to explore the universe in the energy band from several tens of keV to a few MeV. We use a Si strip and CdTe pixel detector for the Compton telescope to cover an energy range from 60 keV. For energies above several hundred keV, the higher efficiency of CdTe semiconductor in comparison with Si is expected to play an important role as an absorber and a scatterer. In order to demonstrate the spectral and imaging capability of a CdTe-based Compton Telescope, we have developed a Compton telescope consisting of a stack of CdTe pixel detectors as a small scale prototype. With this prototype, we succeeded in reconstructing images and spectra by solving the Compton equation from 122 keV to 662 keV. The energy resolution (FWHM) of reconstructed spectra is 7.3 keV at 511 keV and 3.1 keV at 122 keV, respectively. The angular resolution obtained at 511 keV is measured to be 12.2 degree (FWHM)., Comment: 11 pages, 13 figures, presented at SPIE conference HARD X-RAY AND GAMMA-RAY DETECTOR PHYSICS VII", San Diego, 2005. To be published in Proc. SPIE 2005

Published
2005
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18. Results of a Si/CdTe Compton Telescope

Author

Oonuki, Kousuke, Tanaka, Takaaki, Watanabe, Shin, Takeda, Shin'ichiro, Nakazawa, Kazuhiro, Mitani, Takefumi, Takahashi, Tadayuki, Tajima, Hiroyasu, Fukazawa, Yasushi, Nomachi, Masaharu, Oonuki, Kousuke, Tanaka, Takaaki, Watanabe, Shin, Takeda, Shin'ichiro, Nakazawa, Kazuhiro, Mitani, Takefumi, Takahashi, Tadayuki, Tajima, Hiroyasu, Fukazawa, Yasushi, and Nomachi, Masaharu

Abstract

We have been developing a semiconductor Compton telescope to explore the universe in the energy band from several tens of keV to a few MeV. We use a Si strip and CdTe pixel detector for the Compton telescope to cover an energy range from 60 keV. For energies above several hundred keV, the higher efficiency of CdTe semiconductor in comparison with Si is expected to play an important role as an absorber and a scatterer. In order to demonstrate the spectral and imaging capability of a CdTe-based Compton Telescope, we have developed a Compton telescope consisting of a stack of CdTe pixel detectors as a small scale prototype. With this prototype, we succeeded in reconstructing images and spectra by solving the Compton equation from 122 keV to 662 keV. The energy resolution (FWHM) of reconstructed spectra is 7.3 keV at 511 keV and 3.1 keV at 122 keV, respectively. The angular resolution obtained at 511 keV is measured to be 12.2 degree (FWHM)., Comment: 11 pages, 13 figures, presented at SPIE conference HARD X-RAY AND GAMMA-RAY DETECTOR PHYSICS VII", San Diego, 2005. To be published in Proc. SPIE 2005

Published
2005
Full Text
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19. Gamma-ray Polarimetry with Compton Telescope

Author

Tajima, Hiroyasu, Madejski, Grzegorz, Mitani, Takefumi, Tanaka, Takaaki, Nakamura, Hidehito, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Fukazawa, Yasushi, Kamae, Tuneyoshi, Kokubun, Motohide, Marlow, Daniel, Nomachi, Masaharu, Silva, Eduardo do Couto e, Tajima, Hiroyasu, Madejski, Grzegorz, Mitani, Takefumi, Tanaka, Takaaki, Nakamura, Hidehito, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Fukazawa, Yasushi, Kamae, Tuneyoshi, Kokubun, Motohide, Marlow, Daniel, Nomachi, Masaharu, and Silva, Eduardo do Couto e

Abstract

Compton telescope is a promising technology to achieve very high sensitivity in the soft gamma-ray band (0.1-10 MeV) by utilizing Compton kinematics. Compton kinematics also enables polarization measurement which will open new windows to study gamma-ray production mechanism in the universe. CdTe and Si semiconductor technologies are key technologies to realize the Compton telescope in which their high energy resolution is crucial for high angular resolution and background rejection capability. We have assembled a prototype module using a double-sided silicon strip detector and CdTe pixel detectors. In this paper, we present expected polarization performance of a proposed mission (NeXT/SGD). We also report results from polarization measurements using polarized synchrotron light and validation of EGS4 MC simulation., Comment: 12 pages, 11 figures, submitted to SPIE conference proceedings vol 5488, "UV-Gamma Ray Space Telescope Systems," Glasgow UK, 6/21-6/24 2004

Published
2004
Full Text
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20. A Prototype Si/CdTe Compton Camera and the Polarization Measurement

Author

Mitani, Takefumi, Tanaka, Takaaki, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Takashima, Takeshi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, Fukazawa, Yasushi, Mitani, Takefumi, Tanaka, Takaaki, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Takashima, Takeshi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, and Fukazawa, Yasushi

Abstract

A Compton camera is the most promising approach for gamma-ray detection in the energy region from several hundred keV to MeV, especially for application in high energy astrophysics. In order to obtain good angular resolution, semiconductor detectors such as silicon, germanium and cadmium telluride(CdTe) have several advantages over scintillation detectors, which have been used so far. Based on the recent advances of high resolution CdTe and silicon imaging detectors, we are working on a Si/CdTe Compton camera. We have developed 64-pixel CdTe detectors with a pixel size of 2mmx2mm and double-sided Si strip detectors(DSSDs) with a position resolution of 800 micron. As a prototype Si/CdTe Compton camera, we use a DSSD as a scatterer and two CdTe pixel detectors as an absorber. In order to verify its performance, we irradiate the camera with 100% linearly polarised 170keV gamma-rays and demonstrate the system works properly as a Compton camera. The resolution of the reconstructed scattering angle is 22 degrees(FWHM). Measurement of polarization is also reported. The polarimetric modulation factor is obtained to be 43%, which is consistent with the prediction of Monte Carlo simulations., Comment: 6 pages, 11 figures, to be published in IEEE Trans. Nucl. Sci. Vol. 51 (2004)

Published
2004
Full Text
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21. Development of a Si/CdTe semiconductor Compton telescope

Author

Tanaka, Takaaki, Mitani, Takefumi, Watanabe, Shin, Nakazawa, Kazuhiro, Oonuki, Kousuke, Sato, Goro, Takahashi, Tadayuki, Tamura, Ken'ichi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, Fukazawa, Yasushi, Tanaka, Takaaki, Mitani, Takefumi, Watanabe, Shin, Nakazawa, Kazuhiro, Oonuki, Kousuke, Sato, Goro, Takahashi, Tadayuki, Tamura, Ken'ichi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, and Fukazawa, Yasushi

Abstract

We are developing a Compton telescope based on high resolution Si and CdTe imaging devices in order to obtain a high sensitivity astrophysical observation in sub-MeV gamma-ray region. In this paper, recent results from the prototype Si/CdTe semiconductor Compton telescope are reported. The Compton telescope consists of a double-sided Si strip detector (DSSD) and CdTe pixel detectors, combined with low noise analog LSI, VA32TA. With this detector, we obtained Compton reconstructed images and spectra from line gamma-rays ranging from 81 keV up to 356 keV. The energy resolution is 3.8 keV and 7.9 keV at 122 keV and 356 keV, respectively, and the angular resolution is 9.9 degrees and 5.7 degrees at 122 keV and 356 keV, respectively., Comment: 12 pages, 14 figures, submitted to SPIE conference proceedings vol. 5501, "High-Energy Detectors in Astronomy", Glasgow UK, 6/21-6/24 2004

Published
2004
Full Text
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22. A Prototype Si/CdTe Compton Camera and the Polarization Measurement

Author

Mitani, Takefumi, Tanaka, Takaaki, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Takashima, Takeshi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, Fukazawa, Yasushi, Mitani, Takefumi, Tanaka, Takaaki, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Takashima, Takeshi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, and Fukazawa, Yasushi

Abstract

A Compton camera is the most promising approach for gamma-ray detection in the energy region from several hundred keV to MeV, especially for application in high energy astrophysics. In order to obtain good angular resolution, semiconductor detectors such as silicon, germanium and cadmium telluride(CdTe) have several advantages over scintillation detectors, which have been used so far. Based on the recent advances of high resolution CdTe and silicon imaging detectors, we are working on a Si/CdTe Compton camera. We have developed 64-pixel CdTe detectors with a pixel size of 2mmx2mm and double-sided Si strip detectors(DSSDs) with a position resolution of 800 micron. As a prototype Si/CdTe Compton camera, we use a DSSD as a scatterer and two CdTe pixel detectors as an absorber. In order to verify its performance, we irradiate the camera with 100% linearly polarised 170keV gamma-rays and demonstrate the system works properly as a Compton camera. The resolution of the reconstructed scattering angle is 22 degrees(FWHM). Measurement of polarization is also reported. The polarimetric modulation factor is obtained to be 43%, which is consistent with the prediction of Monte Carlo simulations., Comment: 6 pages, 11 figures, to be published in IEEE Trans. Nucl. Sci. Vol. 51 (2004)

Published
2004
Full Text
View/download PDF

23. Development of a Si/CdTe semiconductor Compton telescope

Author

Tanaka, Takaaki, Mitani, Takefumi, Watanabe, Shin, Nakazawa, Kazuhiro, Oonuki, Kousuke, Sato, Goro, Takahashi, Tadayuki, Tamura, Ken'ichi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, Fukazawa, Yasushi, Tanaka, Takaaki, Mitani, Takefumi, Watanabe, Shin, Nakazawa, Kazuhiro, Oonuki, Kousuke, Sato, Goro, Takahashi, Tadayuki, Tamura, Ken'ichi, Tajima, Hiroyasu, Nakamura, Hidehito, Nomachi, Masaharu, Nakamoto, Tatsuya, and Fukazawa, Yasushi

Abstract

We are developing a Compton telescope based on high resolution Si and CdTe imaging devices in order to obtain a high sensitivity astrophysical observation in sub-MeV gamma-ray region. In this paper, recent results from the prototype Si/CdTe semiconductor Compton telescope are reported. The Compton telescope consists of a double-sided Si strip detector (DSSD) and CdTe pixel detectors, combined with low noise analog LSI, VA32TA. With this detector, we obtained Compton reconstructed images and spectra from line gamma-rays ranging from 81 keV up to 356 keV. The energy resolution is 3.8 keV and 7.9 keV at 122 keV and 356 keV, respectively, and the angular resolution is 9.9 degrees and 5.7 degrees at 122 keV and 356 keV, respectively., Comment: 12 pages, 14 figures, submitted to SPIE conference proceedings vol. 5501, "High-Energy Detectors in Astronomy", Glasgow UK, 6/21-6/24 2004

Published
2004
Full Text
View/download PDF

24. Gamma-ray Polarimetry with Compton Telescope

Author

Tajima, Hiroyasu, Madejski, Grzegorz, Mitani, Takefumi, Tanaka, Takaaki, Nakamura, Hidehito, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Fukazawa, Yasushi, Kamae, Tuneyoshi, Kokubun, Motohide, Marlow, Daniel, Nomachi, Masaharu, Silva, Eduardo do Couto e, Tajima, Hiroyasu, Madejski, Grzegorz, Mitani, Takefumi, Tanaka, Takaaki, Nakamura, Hidehito, Nakazawa, Kazuhiro, Takahashi, Tadayuki, Fukazawa, Yasushi, Kamae, Tuneyoshi, Kokubun, Motohide, Marlow, Daniel, Nomachi, Masaharu, and Silva, Eduardo do Couto e

Abstract

Compton telescope is a promising technology to achieve very high sensitivity in the soft gamma-ray band (0.1-10 MeV) by utilizing Compton kinematics. Compton kinematics also enables polarization measurement which will open new windows to study gamma-ray production mechanism in the universe. CdTe and Si semiconductor technologies are key technologies to realize the Compton telescope in which their high energy resolution is crucial for high angular resolution and background rejection capability. We have assembled a prototype module using a double-sided silicon strip detector and CdTe pixel detectors. In this paper, we present expected polarization performance of a proposed mission (NeXT/SGD). We also report results from polarization measurements using polarized synchrotron light and validation of EGS4 MC simulation., Comment: 12 pages, 11 figures, submitted to SPIE conference proceedings vol 5488, "UV-Gamma Ray Space Telescope Systems," Glasgow UK, 6/21-6/24 2004

Published
2004
Full Text
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