Status and plan of GAMMA 10 tandem mirror program

T. Imai; M. Ichimura; Y. Nakashima; I. Katanuma; M. Yoshikawa; T. Kariya; R. Minami; Y. Miyata; Y. Yamaguchi; R. Ikezoe; T. Shimozuma; S. Kubo; Y. Yoshimura; H. Takahashi; T. Mutoh; K. Sakamoto; M. Mizuguchi; M. Ota; H. Ozawa; K. Hosoi; F. Yaguchi; R. Yonenaga; Y. Imai; T. Murakani; K. Yagi; T. Nakamura; H. Aoki; H. Iizumi; T. Ishii; H. Kondou; H. Takeda; N. Ichioka; S. Masaki; T. Yokoyama

doi:10.13182/FST11-A11563

Status and plan of GAMMA 10 tandem mirror program

T. Imai, M. Ichimura, Y. Nakashima, I. Katanuma, M. Yoshikawa, T. Kariya, R. Minami, Y. Miyata, Y. Yamaguchi, R. Ikezoe, T. Shimozuma, S. Kubo, Y. Yoshimura, H. Takahashi, T. Mutoh, K. Sakamoto, M. Mizuguchi, M. Ota, H. Ozawa, K. HosoiF. Yaguchi, R. Yonenaga, Y. Imai, T. Murakani, K. Yagi, T. Nakamura, H. Aoki, H. Iizumi, T. Ishii, H. Kondou, H. Takeda, N. Ichioka, S. Masaki, T. Yokoyama

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Recent progress and near future plan of GAMMA 10 efforts are presented. With high power plug electron cyclotron heating (ECH) up to ~ 400 kW, the ion confining potential of more than 2 kV was confirmed. The drift type low frequency fluctuations were suppressed by the positive radial electric field produced by plug ECH. It is found that the efficient EC heating on mirror devices from a strong B field side requires the minimization of the stray microwave in addition to the 100% X-mode excitation to avoid the enhancement of the ion loss. The development of a gyrotron, the key tool of these ECH experiments, has been made in collaboration with NIFS (National Institute for Fusion Science), More than 1.5 MWfor more than Is has been demonstrated at 77GHz. The plan of the boundary plasma research program with modification of GAMMA 10 is in progress. The new program includes the physics and technology studies of the divertor and SOL plasmas and PWI relevant to torus plasmas like ITER. The high heat flux experiments using the open end mirror throat has been started and we have obtained successful preliminary data, which include the heat flux of 8 MW/m².

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Fusion Science and Technology
Volume	59
Issue number	1 T
DOIs	https://doi.org/10.13182/FST11-A11563
Publication status	Published - Jan 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

Access to Document

10.13182/FST11-A11563

Cite this

Imai, T., Ichimura, M., Nakashima, Y., Katanuma, I., Yoshikawa, M., Kariya, T., Minami, R., Miyata, Y., Yamaguchi, Y., Ikezoe, R., Shimozuma, T., Kubo, S., Yoshimura, Y., Takahashi, H., Mutoh, T., Sakamoto, K., Mizuguchi, M., Ota, M., Ozawa, H., ... Yokoyama, T. (2011). Status and plan of GAMMA 10 tandem mirror program. Fusion Science and Technology, 59(1 T), 1-8. https://doi.org/10.13182/FST11-A11563

Imai, T, Ichimura, M, Nakashima, Y, Katanuma, I, Yoshikawa, M, Kariya, T, Minami, R, Miyata, Y, Yamaguchi, Y, Ikezoe, R, Shimozuma, T, Kubo, S, Yoshimura, Y, Takahashi, H, Mutoh, T, Sakamoto, K, Mizuguchi, M, Ota, M, Ozawa, H, Hosoi, K, Yaguchi, F, Yonenaga, R, Imai, Y, Murakani, T, Yagi, K, Nakamura, T, Aoki, H, Iizumi, H, Ishii, T, Kondou, H, Takeda, H, Ichioka, N, Masaki, S & Yokoyama, T 2011, 'Status and plan of GAMMA 10 tandem mirror program', Fusion Science and Technology, vol. 59, no. 1 T, pp. 1-8. https://doi.org/10.13182/FST11-A11563

@article{833f5ea8756e4e4a9428916cea89ede0,

title = "Status and plan of GAMMA 10 tandem mirror program",

abstract = "Recent progress and near future plan of GAMMA 10 efforts are presented. With high power plug electron cyclotron heating (ECH) up to ~ 400 kW, the ion confining potential of more than 2 kV was confirmed. The drift type low frequency fluctuations were suppressed by the positive radial electric field produced by plug ECH. It is found that the efficient EC heating on mirror devices from a strong B field side requires the minimization of the stray microwave in addition to the 100% X-mode excitation to avoid the enhancement of the ion loss. The development of a gyrotron, the key tool of these ECH experiments, has been made in collaboration with NIFS (National Institute for Fusion Science), More than 1.5 MWfor more than Is has been demonstrated at 77GHz. The plan of the boundary plasma research program with modification of GAMMA 10 is in progress. The new program includes the physics and technology studies of the divertor and SOL plasmas and PWI relevant to torus plasmas like ITER. The high heat flux experiments using the open end mirror throat has been started and we have obtained successful preliminary data, which include the heat flux of 8 MW/m2.",

author = "T. Imai and M. Ichimura and Y. Nakashima and I. Katanuma and M. Yoshikawa and T. Kariya and R. Minami and Y. Miyata and Y. Yamaguchi and R. Ikezoe and T. Shimozuma and S. Kubo and Y. Yoshimura and H. Takahashi and T. Mutoh and K. Sakamoto and M. Mizuguchi and M. Ota and H. Ozawa and K. Hosoi and F. Yaguchi and R. Yonenaga and Y. Imai and T. Murakani and K. Yagi and T. Nakamura and H. Aoki and H. Iizumi and T. Ishii and H. Kondou and H. Takeda and N. Ichioka and S. Masaki and T. Yokoyama",

year = "2011",

month = jan,

doi = "10.13182/FST11-A11563",

language = "English",

volume = "59",

pages = "1--8",

journal = "Fusion Science and Technology",

issn = "1536-1055",

publisher = "American Nuclear Society",

number = "1 T",

}

TY - JOUR

T1 - Status and plan of GAMMA 10 tandem mirror program

AU - Imai, T.

AU - Ichimura, M.

AU - Nakashima, Y.

AU - Katanuma, I.

AU - Yoshikawa, M.

AU - Kariya, T.

AU - Minami, R.

AU - Miyata, Y.

AU - Yamaguchi, Y.

AU - Ikezoe, R.

AU - Shimozuma, T.

AU - Kubo, S.

AU - Yoshimura, Y.

AU - Takahashi, H.

AU - Mutoh, T.

AU - Sakamoto, K.

AU - Mizuguchi, M.

AU - Ota, M.

AU - Ozawa, H.

AU - Hosoi, K.

AU - Yaguchi, F.

AU - Yonenaga, R.

AU - Imai, Y.

AU - Murakani, T.

AU - Yagi, K.

AU - Nakamura, T.

AU - Aoki, H.

AU - Iizumi, H.

AU - Ishii, T.

AU - Kondou, H.

AU - Takeda, H.

AU - Ichioka, N.

AU - Masaki, S.

AU - Yokoyama, T.

PY - 2011/1

Y1 - 2011/1

N2 - Recent progress and near future plan of GAMMA 10 efforts are presented. With high power plug electron cyclotron heating (ECH) up to ~ 400 kW, the ion confining potential of more than 2 kV was confirmed. The drift type low frequency fluctuations were suppressed by the positive radial electric field produced by plug ECH. It is found that the efficient EC heating on mirror devices from a strong B field side requires the minimization of the stray microwave in addition to the 100% X-mode excitation to avoid the enhancement of the ion loss. The development of a gyrotron, the key tool of these ECH experiments, has been made in collaboration with NIFS (National Institute for Fusion Science), More than 1.5 MWfor more than Is has been demonstrated at 77GHz. The plan of the boundary plasma research program with modification of GAMMA 10 is in progress. The new program includes the physics and technology studies of the divertor and SOL plasmas and PWI relevant to torus plasmas like ITER. The high heat flux experiments using the open end mirror throat has been started and we have obtained successful preliminary data, which include the heat flux of 8 MW/m2.

AB - Recent progress and near future plan of GAMMA 10 efforts are presented. With high power plug electron cyclotron heating (ECH) up to ~ 400 kW, the ion confining potential of more than 2 kV was confirmed. The drift type low frequency fluctuations were suppressed by the positive radial electric field produced by plug ECH. It is found that the efficient EC heating on mirror devices from a strong B field side requires the minimization of the stray microwave in addition to the 100% X-mode excitation to avoid the enhancement of the ion loss. The development of a gyrotron, the key tool of these ECH experiments, has been made in collaboration with NIFS (National Institute for Fusion Science), More than 1.5 MWfor more than Is has been demonstrated at 77GHz. The plan of the boundary plasma research program with modification of GAMMA 10 is in progress. The new program includes the physics and technology studies of the divertor and SOL plasmas and PWI relevant to torus plasmas like ITER. The high heat flux experiments using the open end mirror throat has been started and we have obtained successful preliminary data, which include the heat flux of 8 MW/m2.

UR - http://www.scopus.com/inward/record.url?scp=79952834395&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79952834395&partnerID=8YFLogxK

U2 - 10.13182/FST11-A11563

DO - 10.13182/FST11-A11563

M3 - Article

AN - SCOPUS:79952834395

SN - 1536-1055

VL - 59

SP - 1

EP - 8

JO - Fusion Science and Technology

JF - Fusion Science and Technology

IS - 1 T

ER -

Status and plan of GAMMA 10 tandem mirror program

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this