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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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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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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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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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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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Yoshikawa M, Morimoto M, Shima Y, Kohagura J, Sakamoto M, Yamada I, Yasuhara R, Kawahata K, Funaba H, Minami T, Nakashima Y, Ichimura M, Minami R, Hosoi K, Kitade S, Kawarasaki R, Kobayashi S, Mizuuchi T, Imai T. Electron Temperature and Density Measurements by Using Thomson Scattering System in GAMMA 10. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16887] [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)
- M. Yoshikawa
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Morimoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - Y. Shima
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - J. Kohagura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - M. Sakamoto
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - I. Yamada
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - R. Yasuhara
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - K. Kawahata
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - H. Funaba
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - T. Minami
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - Y. Nakashima
- National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
| | - M. Ichimura
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Minami
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - K. Hosoi
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kitade
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - R. Kawarasaki
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
| | - S. Kobayashi
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T. Mizuuchi
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T. Imai
- Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
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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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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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