Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS

M. Isobe; D. A. Spong; A. Shimizu; K. Toi; H. Matsushita; K. Nagaoka; M. Nishiura; K. Matsuoka; S. Okamura; S. Murakami

doi:10.1017/S0022377806005903

Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS

M. Isobe, D. A. Spong, A. Shimizu, K. Toi, H. Matsushita, K. Nagaoka, M. Nishiura, K. Matsuoka, S. Okamura, S. Murakami

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Abstract

Confinement and loss properties of tangentially co-injected beam ions have been studied for a standard configuration of the Compact Helical System (R _ax/B_t = 0.921 m/l.9 T) by use of the global particle simulation code DELTA5D. Both ripple transport and collisions with a background plasma are taken into account. It has appeared that partially thermalized, pitch-angle scattered beam ions are dominantly lost at the small major radius side. It has also been shown that the negative potential can enhance beam ions losses.

Original language	English
Pages (from-to)	1189-1192
Number of pages	4
Journal	Journal of Plasma Physics
Volume	72
Issue number	6
DOIs	https://doi.org/10.1017/S0022377806005903
State	Published - Dec 2006

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Isobe, M., Spong, D. A., Shimizu, A., Toi, K., Matsushita, H., Nagaoka, K., Nishiura, M., Matsuoka, K., Okamura, S., & Murakami, S. (2006). Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS. Journal of Plasma Physics, 72(6), 1189-1192. https://doi.org/10.1017/S0022377806005903

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title = "Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS",

abstract = "Confinement and loss properties of tangentially co-injected beam ions have been studied for a standard configuration of the Compact Helical System (R ax/Bt = 0.921 m/l.9 T) by use of the global particle simulation code DELTA5D. Both ripple transport and collisions with a background plasma are taken into account. It has appeared that partially thermalized, pitch-angle scattered beam ions are dominantly lost at the small major radius side. It has also been shown that the negative potential can enhance beam ions losses.",

author = "M. Isobe and Spong, \{D. A.\} and A. Shimizu and K. Toi and H. Matsushita and K. Nagaoka and M. Nishiura and K. Matsuoka and S. Okamura and S. Murakami",

year = "2006",

month = dec,

doi = "10.1017/S0022377806005903",

language = "English",

volume = "72",

pages = "1189--1192",

journal = "Journal of Plasma Physics",

issn = "0022-3778",

publisher = "Cambridge University Press",

number = "6",

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Isobe, M, Spong, DA, Shimizu, A, Toi, K, Matsushita, H, Nagaoka, K, Nishiura, M, Matsuoka, K, Okamura, S & Murakami, S 2006, 'Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS', Journal of Plasma Physics, vol. 72, no. 6, pp. 1189-1192. https://doi.org/10.1017/S0022377806005903

TY - JOUR

T1 - Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS

AU - Isobe, M.

AU - Spong, D. A.

AU - Shimizu, A.

AU - Toi, K.

AU - Matsushita, H.

AU - Nagaoka, K.

AU - Nishiura, M.

AU - Matsuoka, K.

AU - Okamura, S.

AU - Murakami, S.

PY - 2006/12

Y1 - 2006/12

N2 - Confinement and loss properties of tangentially co-injected beam ions have been studied for a standard configuration of the Compact Helical System (R ax/Bt = 0.921 m/l.9 T) by use of the global particle simulation code DELTA5D. Both ripple transport and collisions with a background plasma are taken into account. It has appeared that partially thermalized, pitch-angle scattered beam ions are dominantly lost at the small major radius side. It has also been shown that the negative potential can enhance beam ions losses.

AB - Confinement and loss properties of tangentially co-injected beam ions have been studied for a standard configuration of the Compact Helical System (R ax/Bt = 0.921 m/l.9 T) by use of the global particle simulation code DELTA5D. Both ripple transport and collisions with a background plasma are taken into account. It has appeared that partially thermalized, pitch-angle scattered beam ions are dominantly lost at the small major radius side. It has also been shown that the negative potential can enhance beam ions losses.

UR - https://www.scopus.com/pages/publications/33846036513

U2 - 10.1017/S0022377806005903

DO - 10.1017/S0022377806005903

M3 - Article

AN - SCOPUS:33846036513

SN - 0022-3778

VL - 72

SP - 1189

EP - 1192

JO - Journal of Plasma Physics

JF - Journal of Plasma Physics

IS - 6

ER -

Simulational study on losses of neutral beam-injected energetic ions via collisional ripple transport in the low aspect ratio helical system CHS

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