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Cho T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Itakura A, Katanuma I, Kohagura J, Nakashima Y, Saito T, Tatematsu Y, Yoshikawa M, Itoh H, Minami R, Nagashima S, Numakura T, Watanabe H, Yoshida M, Yatsu K, Miyoshi S. Summarized Scaling Laws of Plasma Confining Potential Formation and Effects in the Gamma 10 Tandem Mirror. Fusion Science and Technology 2018. [DOI: 10.13182/fst03-a11963560] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Higaki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - A. Itakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Itoh
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Nagashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Watanabe
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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Imai T, Ichimura M, Nakashima Y, Sakamoto M, Katanuma I, Yoshikawa M, Kariya T, Hirata M, Kohagura J, Minami R, Numakura T, Ikezoe R, Oki K, Sakamoto K. GAMMA 10/PDX Project Status and Future. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-1t29] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Imai
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - K. Oki
- Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Japan
| | - K. Sakamoto
- Japan Atomic Energy Research Institute(JAEA), Naka, Japan
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3
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Imai T, Tatematsu Y, Numakura T, Sakamoto K, Minami R, Watanabe O, Kariya T, Mitsunaka Y, Kamata Y, Machida N, Kaizuka T, Nakamura M, Saito T, Cho T. Upgrade Program of ECRH System for GAMMA 10. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1352] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Imai
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Naka Fusion Research Est., Japan Atomic Energy Agency, Naka,Ibaraki, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi, Japan
| | - Y. Kamata
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Machida
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kaizuka
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Nakamura
- Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi, Japan
| | - T. Cho
- Research Center for Dev. of Far Infrared Region, Univ. of Fukui, Fukui, Japan
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4
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Kariya T, Mitsunaka Y, Imai T, Saito T, Tatematsu Y, Sakamoto K, Minami R, Watanabe O, Numakura T, Endo Y. Optimization of 28 GHz Gyrotron Output Performance for ECRH Experiment of the GAMMA 10. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1414] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi 324-8550, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co. Ltd, Otawara, Tochigi 324-8550, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Research Center for Dev. of Far Infrared Region, Univ. of Fukui, Bumkyo, Fukui 910-8507, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Naka Fusion Research Est., Japan Atomic Energy Agency, Naka,Ibaraki 311-0193, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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5
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Cho T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Islam K, Itakura A, Katanuma I, Kohagura J, Nakashima Y, Numakura T, Saito T, Tatematsu Y, Yoshikawa M, Tokioka S, Yokoyama N, Miyake Y, Tomii Y, Kojima Y, Takemura Y, Imai T, Yoshida M, Sakamoto K, Pastukhov VP, Miyoshi S. Recent Progress in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a601] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Cho
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Higaki
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Islam
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - A. Itakura
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Tokioka
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - N. Yokoyama
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyake
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tomii
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Kojima
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Takemura
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- JAERI, Naka Fusion Research Establishment, Ibaraki, Japan
| | - K. Sakamoto
- JAERI, Naka Fusion Research Establishment, Ibaraki, Japan
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6
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Nakashima Y, Sakamoto M, Takeda H, Ichimura K, Hosoi K, Oki K, Yoshikawa M, Nishino N, Matsuura H, Hirata M, Ichimura M, Kariya T, Katanuma I, Kohagura J, Minami R, Numakura T, Ikezoe R, Akabane Y, Kigure S, Nagatsuka Y, Takahashi S, Ueda H, Imai T. First Results and Future Research Plan of Divertor Simulation Experiments Using D-Module in the End-Cell of the GAMMA 10/PDX Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - H. Takeda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - K. Oki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - N. Nishino
- Graduate school of Engineering, Hiroshima University, Hiroshima 739-8527, Japan
| | - H. Matsuura
- Radiation Research Center, Osaka Prefecture University, Osaka 599-8570, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - R. Ikezoe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - Y. Akabane
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - S. Kigure
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - Y. Nagatsuka
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - S. Takahashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - H. Ueda
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 3005-8577, Japan
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7
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Kariya T, Minami R, Imai T, Shimozuma T, Kubo S, Yoshimura Y, Takahashi H, Ito S, Mutoh T, Nakabayashi H, Eguchi T, Numakura T, Endo Y, Mitsunaka Y, Sakamoto K. Development of 154 GHz 1 MW Gyrotron for ECRH of LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst13-a16923] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Shimozuma
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - H. Takahashi
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - S. Ito
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science (NIFS), Toki, Gifu, 509-5292, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Endo
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co., Ltd. (TETD), Otawara, Tochigi, 324-8550, Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency (JAEA), Naka, Ibaraki, 311-0193, Japan
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8
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Cho T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Islam K, Itakura A, Katanuma I, Kohagura J, Minami R, Nakashima Y, Numakura T, Saito T, Tatematsu Y, Yoshikawa M, Watanabe O, Kubota Y, Kobayashi T, Yamaguchi Y, Saimaru H, Higashizono Y, Miyata Y, Kiminami S, Shimizu K, Itou M, Ikuno T, Mase A, Yasaka Y, Sakamoto K, Yoshida M, Kojima A, Ogura K, Nishino N, Horton W, Kariya T, Imai T, Pastukhov V, Miyoshi S. Overview of Recent Progress in the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst07-a1305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Cho
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - H. Higaki
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - K. Islam
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - A. Itakura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Nakashima
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Saito
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Kubota
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Kobayashi
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Yamaguchi
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - H. Saimaru
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Higashizono
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - Y. Miyata
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - S. Kiminami
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - K. Shimizu
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - M. Itou
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - T. Ikuno
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - A. Mase
- Art, Science and Technology Center for Cooperative Research, Kyushu University, Japan
| | - Y. Yasaka
- Department of Electrical and Electronics Engineering, Kobe University, Japan
| | - K. Sakamoto
- Naka Fusion Research Establishment, Japan Atomic Energy Agency, Japan
| | - M. Yoshida
- Naka Fusion Research Establishment, Japan Atomic Energy Agency, Japan
| | - A. Kojima
- Naka Fusion Research Establishment, Japan Atomic Energy Agency, Japan
| | - K. Ogura
- Graduate School of Science and Technology, Niigata University, Japan
| | - N. Nishino
- Graduated School of Engineering, Hiroshima University, Japan
| | - W. Horton
- Institute for Fusion Studies, The University of Texas at Austin, USA
| | - T. Kariya
- Toshiba Electron Tubes and Devices Co. Ltd., Tochigi, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
| | - V.P. Pastukhov
- Russian Research Center “Kurchatov Institute”, Moscow, Russia Kurchatov Institute, Russia
| | - S. Miyoshi
- Plasma Research Center, University of Tsukuba, Ibaraki, Japan
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9
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Nakashima Y, Sakamoto M, Takeda H, Ichimura K, Hosoda Y, Iwamoto M, Shimizu K, Hosoi K, Oki K, Yoshikawa M, Hirata M, Ikezoe R, Imai T, Kariya T, Katanuma I, Kohagura J, Minami R, Numakura T, Wang X, Ichimura M. Recent Results of Divertor Simulation Experiments Using D-Module in the GAMMA 10/PDX Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-882] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Nakashima
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Sakamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Takeda
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Hosoda
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Iwamoto
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hosoi
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Oki
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshikawa
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Ikezoe
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Katanuma
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - X. Wang
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki 305-8577, Japan
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10
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Kariya T, Minami R, Imai T, Kato T, Idei H, Hanada K, Zushi H, Numakura T, Endo Y, Ichimura M. Development of 28 GHz Gyrotron for Cooperative ECH Study. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Kariya
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kato
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Idei
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - K. Hanada
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - H. Zushi
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Endo
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
| | - M. Ichimura
- Kyusyu University, Research Institute for Applied Mechanics, Fukuoka, 816-8580, Japan
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11
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Minami R, Imai T, Kariya T, Numakura T, Kato T, Uehara M, Goto R, Tsumura K, Endo Y, Ichimura M. Experimental Results and Design of Mirror Antenna and MW Gyrotron for Control of High Intermittent Heat Flux in GAMMA 10 Tandem Mirror. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Imai
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Kariya
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Numakura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - T. Kato
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - M. Uehara
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - R. Goto
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - K. Tsumura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - Y. Endo
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
| | - M. Ichimura
- University of Tsukuba, Plasma Research Center, Ibaraki, Japan
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12
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Minami R, Imai T, Kariya T, Numakura T, Uehara M, Tsumura K, Ebashi Y, Kajino S, Endo Y, Nakashima Y. Measurement of effect of electron cyclotron heating in a tandem mirror plasma using a semiconductor detector array and an electrostatic energy analyzer. Rev Sci Instrum 2016; 87:11E306. [PMID: 27910325 DOI: 10.1063/1.4959574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Temporally and spatially resolved soft x-ray and end-loss-electron analyses of the electron cyclotron heated plasmas are carried out by using a semiconductor detector array and an electrostatic energy analyzer in the GAMMA 10 tandem mirror. The flux and the energy spectrum of the end loss electrons are measured by a multi-grid energy analyzer. Recently, the electron cyclotron heating power modulation experiments have been started in order to generate and control the high heat flux and to make the edge localized mode-like intermittent heat load pattern for the divertor simulation studies by the use of these detectors for electron properties.
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Affiliation(s)
- R Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Uehara
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Tsumura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Ebashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S Kajino
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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13
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Minami R, Imai T, Kariya T, Numakura T, Eguchi T, Kawarasaki R, Nakazawa K, Kato T, Sato F, Nanzai H, Uehara M, Endo Y, Ichimura M. Soft x-ray intensity profile measurements of electron cyclotron heated plasmas using semiconductor detector arrays in GAMMA 10 tandem mirror. Rev Sci Instrum 2014; 85:11D807. [PMID: 25430220 DOI: 10.1063/1.4885495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Temporally and spatially resolved soft x-ray analyses of electron cyclotron heated plasmas are carried out by using semiconductor detector arrays in the GAMMA 10 tandem mirror. The detector array has 16-channel for the measurements of plasma x-ray profiles so as to make x-ray tomographic reconstructions. The characteristics of the detector array make it possible to obtain spatially resolved plasma electron temperatures down to a few tens eV and investigate various magnetohydrodynamic activities. High power electron cyclotron heating experiment for the central-cell region in GAMMA 10 has been started in order to reduce the electron drag by increasing the electron temperature.
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Affiliation(s)
- R Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Eguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K Nakazawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T Kato
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - F Sato
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H Nanzai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Uehara
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y Endo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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14
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Eguchi T, kariya T, Imai T, Nakabayashi H, Minami R, Numakura T, Kawarasaki R, Nakazawa K. Development of 28 GHz/35 GHz Dual-Frequency Gyrotron for Fusion Research. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - K. Nakazawa
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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15
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Nakazawa K, Imai T, Kariya T, Minami R, Numakura T, Nakabayashi H, Eguchi T, Kawarasaki R. The Improvement of the ECH Antenna System in the GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Nakazawa
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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16
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Numakura T, Imai T, Kariya T, Minami R, Nakabayashi H, Eguchi T, Kawarasaki R, Nakazawa Y. Numerical Calculation of the Gyrotron Oscillator in GAMMA 10 ECH Systems. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kariya
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Eguchi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakazawa
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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17
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Kawarasaki R, Imai T, Minami R, Kariya T, Numakura T, Nakabayashi H, Eguchi T, Nakazawa K, Mizuguchi M, Yoshikawa M, Sakamoto M. 2-Dimensional Soft X-Ray Behavior of ECR Heated Plasma in GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - K. Nakazawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - M. Mizuguchi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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18
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Minami R, Imai T, Kariya T, Numakura T, Nakabayashi H, Eguchi T, Kawarasaki R, Nakazawa K, Endo Y. Results of ECH Power Modulation Experimenting High and ELM-Like Heat Flux in GAMMA 10 Tandem Mirror. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Imai
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Kariya
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Numakura
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - H. Nakabayashi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - T. Eguchi
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - K. Nakazawa
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
| | - Y. Endo
- Plasma Research Center (PRC), University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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19
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Nakabayashi H, Kariya T, Imai T, Minami R, Numakura T, Eguchi T, Kawarasaki R, Nakazawa H, Sakamoto K. The Performance Test and the Improved Design of 28 GHz 1 MW Gyrotron. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Nakabayashi
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Kariya
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Imai
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - R. Minami
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - T. Eguchi
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - R. Kawarasaki
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - H. Nakazawa
- Plasma Research Center, University of Tsukuba, 1-1-1, Tenodai, Tsukuba, Japan, 305-8577
| | - K. Sakamoto
- Japan Atomic Energy Agency, Naka Fusion Institute, 801-1, Mukouyama, Naka, Japan, 311-0193
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20
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Nishino N, Kawano H, Higashizono Y, Yonenaga R, Kigura S, Nakashima Y, Hosoi K, Ichimura K, Takeda H, Ueda H, Takahashi S, Ookawa K, Yoshikawa M, Ikezoe R, Kohagura J, Kariya T, Katanuma I, Hirata M, Numakura T, Minami R, Ichimura M, Sakamoto M, Imai T. Edge Turbulence/Fluctuation Observation at “High Density Mode” in GAMMA 10 by Fast Camera. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N. Nishino
- Graduate school of Engineering, Hiroshima University
| | - H. Kawano
- Plasma Research Center, University of Tsukuba
| | | | - R. Yonenaga
- Plasma Research Center, University of Tsukuba
| | - S. Kigura
- Plasma Research Center, University of Tsukuba
| | | | - K. Hosoi
- Plasma Research Center, University of Tsukuba
| | - K. Ichimura
- Plasma Research Center, University of Tsukuba
| | - H. Takeda
- Plasma Research Center, University of Tsukuba
| | - H. Ueda
- Plasma Research Center, University of Tsukuba
| | | | - K. Ookawa
- Plasma Research Center, University of Tsukuba
| | | | - R. Ikezoe
- Plasma Research Center, University of Tsukuba
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba
| | - T. Kariya
- Plasma Research Center, University of Tsukuba
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba
| | - M. Hirata
- Plasma Research Center, University of Tsukuba
| | - T. Numakura
- Plasma Research Center, University of Tsukuba
| | - R. Minami
- Plasma Research Center, University of Tsukuba
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba
| | - T. Imai
- Plasma Research Center, University of Tsukuba
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21
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Hirata M, Cho T, Kohagura J, Numakura T, Shimizu K, Ito M, Kiminami S, Morimoto N, Hirai K, Yamagishi T, Ikuno T, Namiki S, Miyata Y, Minami R, Ogura K, Kondoh T, Kariya T, Imai T, Miyoshi S. Study of the Effects of Plasma-Confining Potentials Using End-Loss Analysing Systems. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Morimoto
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hirai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Yamagishi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Ikuno
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Namiki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ogura
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - T. Kondoh
- Japan Atomic Energy Agency, Naka, Ibaraki, Japan
| | - T. Kariya
- Toshiba Electron Tubes and Devices, Tochigi, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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22
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Kohagura J, Cho T, Hirata M, Numakura T, Tomii Y, Kiminami S, Morimoto N, Shimizu K, Ito M, Ikuno T, Namiki S, Hirai K, Yamagishi T, Miyata Y, Minami R, Ogura K, Kariya T, Imai T, Miyoshi S. Investigation of Electron Distribution Functions in the Plug Region of the GAMMA 10 Tandem Mirror. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tomii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Morimoto
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Ikuno
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Namiki
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hirai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Yamagishi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ogura
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - T. Kariya
- Toshiba Electron Tubes and Devices, Tochigi, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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23
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Kamata Y, Imai T, Tatematsu Y, Watanabe O, Minami R, Saito T, Sakamoto K, Kariya T, Mitsunaka Y, Machida N, Kaitsuka T, Nakamura M, Numakura T, Cho T. Characteristics of 28 GHz Gyrotron for ECRH on GAMMA 10. Fusion Science and Technology 2007. [DOI: 10.13182/fst07-a1419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Kamata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - O. Watanabe
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Saito
- Research Center for Development of Far-infrared Region, University of Fukui, Fukui, Japan
| | - K. Sakamoto
- Japan Atomic Energy Agency-Naka, Naka, Ibaraki, Japan
| | - T. Kariya
- Toshiba Electron Tubes & Devices Co., Ltd, Otawara, Tochigi, Japan
| | - Y. Mitsunaka
- Toshiba Electron Tubes & Devices Co., Ltd, Otawara, Tochigi, Japan
| | - N. Machida
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kaitsuka
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Nakamura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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24
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Cho T, Kohagura J, Numakura T, Hirata M, Higaki H, Hojo H, Ichimura M, Ishii K, Islam KM, Itakura A, Katanuma I, Minami R, Nakashima Y, Saito T, Tatematsu Y, Watanabe O, Yoshikawa M, Kojima A, Miyake Y, Miyata Y, Shimizu K, Tomii Y, Yoshida M, Sakamoto K, Imai T, Pastukhov VP, Miyoshi S. Observation and control of transverse energy-transport barrier due to the formation of an energetic-electron layer with sheared ExB flow. Phys Rev Lett 2006; 97:055001. [PMID: 17026107 DOI: 10.1103/physrevlett.97.055001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Indexed: 05/12/2023]
Abstract
Off-axis electron-cyclotron heating in an axisymmetric barrier mirror produces a cylindrical layer with energetic electrons, which flow through the central cell and into the end region. The layer, producing a localized bumped ambipolar potential Phi(C), forms a strong shear of radial electric fields E(r) and peaked vorticity with the direction reversal of E(r)xB sheared flow near the Phi(C) peak. Intermittent vortexlike turbulent structures near the layer are suppressed in the central cell by this actively produced transverse energy-transport barrier; this results in T(e) and T(i) rises surrounded by the layer.
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Affiliation(s)
- T Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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25
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Cho T, Yoshida M, Kohagura J, Hirata M, Numakura T, Higaki H, Hojo H, Ichimura M, Ishii K, Islam KM, Itakura A, Katanuma I, Nakashima Y, Saito T, Tatematsu Y, Yoshikawa M, Kojima Y, Tokioka S, Yokoyama N, Tomii Y, Imai T, Pastukhov VP, Miyoshi S. Observation of the effects of radially sheared electric fields on the suppression of turbulent vortex structures and the associated transverse loss in GAMMA 10. Phys Rev Lett 2005; 94:085002. [PMID: 15783899 DOI: 10.1103/physrevlett.94.085002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2004] [Indexed: 05/24/2023]
Abstract
Vortexlike turbulent structures in hot-ion mode plasmas with several keV are observed in the case with a radially produced weak shear of electric fields E(r). However, a strong E(r) shear formation due to a high ion-confining potential phi(c) production clears up these vortices together with plasma-confinement improvement and disappearance of both drift-wave and turbulencelike Fourier spectral signals. These findings are based on three-time progress in phi(c) in comparison to phi(c) attained 1992-2002. The significant advance of phi(c) is well extended in line with proposed potential-formation physics scalings.
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Affiliation(s)
- T Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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26
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Numakura T, Cho T, Kohagura J, Hirata M, Fukai T, Yoshida M, Minami R, Kiminami S, Sakamoto K, Imai T, Miyoshi S. A Scaling Law of Plasma Confining Potential Formation with Electron Cyclotron Heating Powers in GAMMA 10. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a616] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Fukai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Japan Atomic Energy Research Institute, Naka, Ibaraki 311-0193, Japan
| | - R. Minami
- Japan Atomic Energy Research Institute, Naka, Ibaraki 311-0193, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Japan Atomic Energy Research Institute, Naka, Ibaraki 311-0193, Japan
| | - T. Imai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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27
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Kohagura J, Cho T, Hirata M, Numakura T, Yokoyama N, Fukai T, Tomii Y, Tokioka S, Miyake Y, Kiminami S, Shimizu K, Miyoshi S, Hirano K, Yoshida M, Yamauchi M, Kondoh T, Nishitani T. X-Ray Energy Responses of Silicon Tomography Detectors Irradiated with Fusion Produced Neutrons. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Yokoyama
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Fukai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tomii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Tokioka
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyake
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hirano
- High Energy Accelerator Research Organization, Ibaraki, 305-0801, Japan
| | - M. Yoshida
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
| | - M. Yamauchi
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
| | - T. Nishitani
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
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28
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Hirata M, Cho T, Yoshida M, Kohagura J, Numakura T, Yokoyama N, Tokioka S, Fukai T, Tomii Y, Miyake Y, Shimizu K, Kiminami S, Kondoh T, Miyoshi S. Comparison of the Radially Produced Electric-Field Shear Effects Analyzed from End-Loss Current and Central-Cell Soft X-Ray Data. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a642] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - N. Yokoyama
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Tokioka
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Fukai
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tomii
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Miyake
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Shimizu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kiminami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kondoh
- Japan Atomic Energy Research Institute, Naka, Ibaraki 311-0193, Japan e-mail:
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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29
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Saito T, Tatematsu Y, Ikegami H, Sekine T, Nagai D, Nozaki K, Cho T, Hirata M, Hojo H, Ishii K, Numakura T, Sakamoto K, Takemura Y, Yoshida M. High Power Electron Heating Experiments at the Plug Region of GAMMA 10. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Saito
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ikegami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Sekine
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - D. Nagai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Nozaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Sakamoto
- Naka Fusion Research Establishment, JAERI, Naka, Ibaraki 311-0193, Japan
| | - Y. Takemura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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30
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Hirata M, Nagashima S, Cho T, Kohagura J, Yoshida M, Ito H, Tokioka S, Numakura T, Minami R, Nakashima Y, Kondoh T, Yatsu K, Miyoshi S. A Novel Electrostatic Ion-Current Absolute-Value Detector Under Circumstances with Simultaneous Electron Incidence by The Use of a Proposed “Self-Collection” Method for Secondary Electron Emission. Fusion Science and Technology 2003. [DOI: 10.13182/fst03-a11963608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Nagashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Tokioka
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Nakashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kondoh
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
- Japan Atomic Energy Research Institute, Naka, Ibaraki 311-0193, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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31
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Nakashima Y, Cho T, Fukasawa T, Higaki H, Hirata M, Hojo H, Ichimura M, Ishii K, Ishimoto Y, Islam MK, Itakura A, Ito T, Katanuma I, Kobayashi S, Kohagura J, Kubota Y, Minami R, Numakura T, Saito T, Saosaki BS, Takemura Y, Tatematsu Y, Yoshida M, Yoshikawa M, Yatsu K. Recent Results of High Density Experiments in the Gamma 10 Tandem Mirror. Fusion Science and Technology 2003. [DOI: 10.13182/fst03-a11963580] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Y. Nakashima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - T. Cho
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - T. Fukasawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - H. Higaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - M. Hirata
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - H. Hojo
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - K. Ishii
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - Y. Ishimoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - M. K. Islam
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - A. Itakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - T. Ito
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - I. Katanuma
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - S. Kobayashi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
- Institute of Advanced of Energy, Kyoto University, Gokasho, Uji 611-0011, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - Y. Kubota
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - T. Numakura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - T. Saito
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - B. S. Saosaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - Y. Takemura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - Y. Tatematsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - M. Yoshida
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
| | - K. Yatsu
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan ,
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32
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Minami R, Cho T, Numakura T, Kohagura J, Hirata M, Watanabe H, Ichimura M, Yatsu K, Miyoshi S. Analyses of Temporally and Spatially Resolved Plasma Behavior Using X-Ray Data in a Single Plasma Discharge on Gamma 10. Fusion Science and Technology 2003. [DOI: 10.13182/fst03-a11963614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Watanabe
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Ichimura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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33
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Numakura T, Cho T, Kohagura J, Hirata M, Minami R, Yatsu K, Miyoshi S. Effects of Thermal-Barrier Potentials on the Central-Cell Electron Energy Confinement. Fusion Science and Technology 2003. [DOI: 10.13182/fst03-a11963599] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
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34
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Kohagura J, Cho T, Hirata M, Numakura T, Minami R, Watanabe H, Yoshida M, Nagashima S, Ito H, Yatsu K, Miyoshi S, Kondoh T, Hori J, Nishitani T. Effects of Fusion Produced Neutrons on Semiconductor Detectors. Fusion Science and Technology 2003. [DOI: 10.13182/fst03-a11963611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. Kohagura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Hirata
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Numakura
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Watanabe
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - M. Yoshida
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Nagashima
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - H. Ito
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - K. Yatsu
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - S. Miyoshi
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
| | - T. Kondoh
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
| | - J. Hori
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
| | - T. Nishitani
- Plasma Research Centre, University of Tsukuba, Ibaraki 305-8577, Japan
- Japan Atomic Energy Research Institute, Ibaraki 319-1195, Japan
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35
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Cho T, Kohagura J, Numakura T, Hirata M, Hojo H, Ichimura M, Ishii K, Itakura A, Katanuma I, Nakashima Y, Saito T, Tatematsu Y, Yoshikawa M, Minami R, Nagashima S, Yoshida M, Tamano T, Yatsu K, Miyoshi S. Generalized scaling laws of the formation and effects of plasma-confining potentials for tandem-mirror operations in GAMMA 10. Phys Rev Lett 2001; 86:4310-4313. [PMID: 11328162 DOI: 10.1103/physrevlett.86.4310] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2000] [Indexed: 05/23/2023]
Abstract
The main operations from 1979 to 2000 in the GAMMA 10 tandem-mirror, characterized in terms of the high-potential mode having kV-order plasma-confining potentials and the hot-ion mode yielding fusion neutrons with 10-20 keV bulk-ion temperatures, are summarized and generalized as a result of scalings of the formation and the effects of the potentials. The wide validity of potential-formation physics from Cohen's theory and the validity of the generalized Pastukhov's theory for the effects of thermal-barrier potentials on electron confinement are verified and consolidated through electron-energy balance.
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Affiliation(s)
- T Cho
- Plasma Research Centre, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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36
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Cho T, Hirata M, Kohagura J, Sakamoto Y, Okamura T, Numakura T, Minami R, Nishizawa Y, Sasuga T, Tamano T, Yatsu K, Miyoshi S, Tanaka S, Sato K, Saitoh Y, Hirano K, Maezawa H. Characterization and interpretation of the quantum efficiencies of multilayer semiconductor detectors using a new theory. J Synchrotron Radiat 1998; 5:877-879. [PMID: 15263683 DOI: 10.1107/s0909049598000016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/1997] [Accepted: 01/06/1998] [Indexed: 05/24/2023]
Abstract
On the basis of a new theory of semiconductor X-ray detector response, a new type of multilayer semiconductor detector was designed and developed for convenient energy analyses of intense incident X-ray flux in a cumulative-current mode. Another anticipated useful property of the developed detector is a drastic improvement in high-energy X-ray response ranging over several hundred eV. The formula for the quantum efficiency of multilayer semiconductor detectors and its physical interpretations are proposed and have been successfully verified by synchrotron radiation experiments at the Photon Factory. These detectors are useful for data analyses under strong radiation-field conditions, including fusion-plasma-emitting X-rays and energetic heavy-particle beams, without the use of high-bias applications.
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Affiliation(s)
- T Cho
- Plasma Research Centre, University of Tsukuba, Ibaraki 305, Japan
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Kojima K, Ito Y, Ogawa K, Numakura T. [Examples of play of hospitalized pre-school children]. Kangogaku Zasshi 1980; 44:1271-8. [PMID: 6782286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Kojima K, Kitami H, Numakura T. [Play of the hospitalized children - play by young children]. Kango Gijutsu 1979; 25:156-64. [PMID: 259111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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