ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX

S. Jang; M. Ichimura; S. Sumida; M. Hirata; R. Ikezoe; M. Sakamoto; T. Okada; Y. Iwamoto; Y. Onodera; J. Itagaki; K. Ichimura; Y. Nakashima

doi:10.1063/1.4964167

ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX

S. Jang, M. Ichimura, S. Sumida, M. Hirata, R. Ikezoe, M. Sakamoto, T. Okada, Y. Iwamoto, Y. Onodera, J. Itagaki, K. Ichimura, Y. Nakashima

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

On the GAMMA 10/PDX tandem mirror machine, divertor simulation experiments are carried out in the west end region by utilizing the particle flux from the confinement region. In order to control the particle flux and the ion temperature on the west end region, we have tried ICRF heating experiments with two types of antennas, double half turn (DHT) and Nagoya Type-III antennas, located in the west barrier cell. The ICRF heating in the barrier cell is effective for increasing the ion temperature at the end region. On the other hand, the particle flux is decreased due to the trapping of the ions from the central cell. This effect is more explicit by use of the Type-III antenna than the DHT antenna. The direct heating of the end-loss ions in the end region has been demonstrated to be effective for the increase of both ion temperature and particle flux.

Original language	English
Title of host publication	Open Magnetic Systems for Plasma Confinement, OS 2016
Subtitle of host publication	Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement
Editors	Aleksey Arakcheev, Anton Sudnikov
Publisher	American Institute of Physics Inc.
ISBN (Electronic)	9780735414297
DOIs	https://doi.org/10.1063/1.4964167
Publication status	Published - Oct 11 2016
Externally published	Yes
Event	11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016 - Akademgorodok, Novosibirsk, Russian Federation Duration: Aug 8 2016 → Aug 12 2016

Publication series

Name	AIP Conference Proceedings
Volume	1771
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016
Country/Territory	Russian Federation
City	Akademgorodok, Novosibirsk
Period	8/8/16 → 8/12/16

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.4964167

Cite this

Jang, S., Ichimura, M., Sumida, S., Hirata, M., Ikezoe, R., Sakamoto, M., Okada, T., Iwamoto, Y., Onodera, Y., Itagaki, J., Ichimura, K., & Nakashima, Y. (2016). ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX. In A. Arakcheev, & A. Sudnikov (Eds.), Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement Article 030011 (AIP Conference Proceedings; Vol. 1771). American Institute of Physics Inc.. https://doi.org/10.1063/1.4964167

ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX. / Jang, S.; Ichimura, M.; Sumida, S. et al.
Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. ed. / Aleksey Arakcheev; Anton Sudnikov. American Institute of Physics Inc., 2016. 030011 (AIP Conference Proceedings; Vol. 1771).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Jang, S, Ichimura, M, Sumida, S, Hirata, M, Ikezoe, R, Sakamoto, M, Okada, T, Iwamoto, Y, Onodera, Y, Itagaki, J, Ichimura, K & Nakashima, Y 2016, ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX. in A Arakcheev & A Sudnikov (eds), Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement., 030011, AIP Conference Proceedings, vol. 1771, American Institute of Physics Inc., 11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016, Akademgorodok, Novosibirsk, Russian Federation, 8/8/16. https://doi.org/10.1063/1.4964167

Jang S, Ichimura M, Sumida S, Hirata M, Ikezoe R, Sakamoto M et al. ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX. In Arakcheev A, Sudnikov A, editors, Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. American Institute of Physics Inc. 2016. 030011. (AIP Conference Proceedings). doi: 10.1063/1.4964167

Jang, S. ; Ichimura, M. ; Sumida, S. et al. / ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX. Open Magnetic Systems for Plasma Confinement, OS 2016: Proceedings of the 11th International Conference on Open Magnetic Systems for Plasma Confinement. editor / Aleksey Arakcheev ; Anton Sudnikov. American Institute of Physics Inc., 2016. (AIP Conference Proceedings).

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abstract = "On the GAMMA 10/PDX tandem mirror machine, divertor simulation experiments are carried out in the west end region by utilizing the particle flux from the confinement region. In order to control the particle flux and the ion temperature on the west end region, we have tried ICRF heating experiments with two types of antennas, double half turn (DHT) and Nagoya Type-III antennas, located in the west barrier cell. The ICRF heating in the barrier cell is effective for increasing the ion temperature at the end region. On the other hand, the particle flux is decreased due to the trapping of the ions from the central cell. This effect is more explicit by use of the Type-III antenna than the DHT antenna. The direct heating of the end-loss ions in the end region has been demonstrated to be effective for the increase of both ion temperature and particle flux.",

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AU - Jang, S.

AU - Ichimura, M.

AU - Sumida, S.

AU - Hirata, M.

AU - Ikezoe, R.

AU - Sakamoto, M.

AU - Okada, T.

AU - Iwamoto, Y.

AU - Onodera, Y.

AU - Itagaki, J.

AU - Ichimura, K.

AU - Nakashima, Y.

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N2 - On the GAMMA 10/PDX tandem mirror machine, divertor simulation experiments are carried out in the west end region by utilizing the particle flux from the confinement region. In order to control the particle flux and the ion temperature on the west end region, we have tried ICRF heating experiments with two types of antennas, double half turn (DHT) and Nagoya Type-III antennas, located in the west barrier cell. The ICRF heating in the barrier cell is effective for increasing the ion temperature at the end region. On the other hand, the particle flux is decreased due to the trapping of the ions from the central cell. This effect is more explicit by use of the Type-III antenna than the DHT antenna. The direct heating of the end-loss ions in the end region has been demonstrated to be effective for the increase of both ion temperature and particle flux.

AB - On the GAMMA 10/PDX tandem mirror machine, divertor simulation experiments are carried out in the west end region by utilizing the particle flux from the confinement region. In order to control the particle flux and the ion temperature on the west end region, we have tried ICRF heating experiments with two types of antennas, double half turn (DHT) and Nagoya Type-III antennas, located in the west barrier cell. The ICRF heating in the barrier cell is effective for increasing the ion temperature at the end region. On the other hand, the particle flux is decreased due to the trapping of the ions from the central cell. This effect is more explicit by use of the Type-III antenna than the DHT antenna. The direct heating of the end-loss ions in the end region has been demonstrated to be effective for the increase of both ion temperature and particle flux.

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ICRF heating in the plug/barrier region to control end-loss ions on GAMMA 10/PDX

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