Observation of the pitch angle distribution of high-energy ions and their radial transport in the central cell of GAMMA10

Yasutaka Imai; Makoto Ichimura; Ryuya Ikezoe; Tatsuya Murakami; Toru Iwai; Takuro Yokoyama; Yumeto Ugajin; Tatsunori Sato; Tsuyoshi Imai

doi:10.1585/pfr.6.2402152

Observation of the pitch angle distribution of high-energy ions and their radial transport in the central cell of GAMMA10

Yasutaka Imai, Makoto Ichimura, Ryuya Ikezoe, Tatsuya Murakami, Toru Iwai, Takuro Yokoyama, Yumeto Ugajin, Tatsunori Sato, Tsuyoshi Imai

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

Abstract

Suppression of the radial transport of the particles caused by low-frequency density fluctuations is one of the important subjects in the GAMMA10 tandem mirror. In GAMMA10, plasmas are mainly produced and heated with Ion Cyclotron Range of Frequency (ICRF) waves. The plasmas heated with ICRF waves have strong temperature anisotropy, because the ions are accelerated perpendicularly to the magnetic field line. In the GAMMA10 experiments, two types of low-frequency density fluctuations are observed; one is a drift-type fluctuation and the other is a flute-type fluctuation. In this paper, we study the radial transport of ICRF-produced high-energy ions which is caused by the low-frequency density fluctuations.

Original language	English
Article number	2402152
Journal	Plasma and Fusion Research
Volume	6
Issue number	1 SPECIAL ISSUE
DOIs	https://doi.org/10.1585/pfr.6.2402152
Publication status	Published - 2011
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1585/pfr.6.2402152

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title = "Observation of the pitch angle distribution of high-energy ions and their radial transport in the central cell of GAMMA10",

abstract = "Suppression of the radial transport of the particles caused by low-frequency density fluctuations is one of the important subjects in the GAMMA10 tandem mirror. In GAMMA10, plasmas are mainly produced and heated with Ion Cyclotron Range of Frequency (ICRF) waves. The plasmas heated with ICRF waves have strong temperature anisotropy, because the ions are accelerated perpendicularly to the magnetic field line. In the GAMMA10 experiments, two types of low-frequency density fluctuations are observed; one is a drift-type fluctuation and the other is a flute-type fluctuation. In this paper, we study the radial transport of ICRF-produced high-energy ions which is caused by the low-frequency density fluctuations.",

author = "Yasutaka Imai and Makoto Ichimura and Ryuya Ikezoe and Tatsuya Murakami and Toru Iwai and Takuro Yokoyama and Yumeto Ugajin and Tatsunori Sato and Tsuyoshi Imai",

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doi = "10.1585/pfr.6.2402152",

language = "English",

volume = "6",

journal = "Plasma and Fusion Research",

issn = "1880-6821",

publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",

number = "1 SPECIAL ISSUE",

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TY - JOUR

T1 - Observation of the pitch angle distribution of high-energy ions and their radial transport in the central cell of GAMMA10

AU - Imai, Yasutaka

AU - Ichimura, Makoto

AU - Ikezoe, Ryuya

AU - Murakami, Tatsuya

AU - Iwai, Toru

AU - Yokoyama, Takuro

AU - Ugajin, Yumeto

AU - Sato, Tatsunori

AU - Imai, Tsuyoshi

PY - 2011

Y1 - 2011

N2 - Suppression of the radial transport of the particles caused by low-frequency density fluctuations is one of the important subjects in the GAMMA10 tandem mirror. In GAMMA10, plasmas are mainly produced and heated with Ion Cyclotron Range of Frequency (ICRF) waves. The plasmas heated with ICRF waves have strong temperature anisotropy, because the ions are accelerated perpendicularly to the magnetic field line. In the GAMMA10 experiments, two types of low-frequency density fluctuations are observed; one is a drift-type fluctuation and the other is a flute-type fluctuation. In this paper, we study the radial transport of ICRF-produced high-energy ions which is caused by the low-frequency density fluctuations.

AB - Suppression of the radial transport of the particles caused by low-frequency density fluctuations is one of the important subjects in the GAMMA10 tandem mirror. In GAMMA10, plasmas are mainly produced and heated with Ion Cyclotron Range of Frequency (ICRF) waves. The plasmas heated with ICRF waves have strong temperature anisotropy, because the ions are accelerated perpendicularly to the magnetic field line. In the GAMMA10 experiments, two types of low-frequency density fluctuations are observed; one is a drift-type fluctuation and the other is a flute-type fluctuation. In this paper, we study the radial transport of ICRF-produced high-energy ions which is caused by the low-frequency density fluctuations.

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JF - Plasma and Fusion Research

SN - 1880-6821

IS - 1 SPECIAL ISSUE

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ER -

Observation of the pitch angle distribution of high-energy ions and their radial transport in the central cell of GAMMA10

Abstract

All Science Journal Classification (ASJC) codes

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