Potential formation and high density plasma production on the tandem mirror GAMMA 10 |
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Authors: | K Yatsu T Cho H Higaki M Ichimura K Ishii Y Ishimoto M K Islam A Itakura I Katanuma J Kohagura Y Nakashima T Saito Y Takemura Y Tatematsu M Yoshida M Yoshikawa |
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Institution: | (1) Plasma Research Center, University of Tsukuba, 305-8577 Tsukuba, Ibaraki, Japan |
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Abstract: | GAMMA 10 experiments have advanced in high density experiments after the last EPS Workshop where we reported high density
plasma production by using an ion cyclotron range of frequency heating at a high harmonic frequency and neutral beam injection
in the central cell. Recently a high density plasma was obtained with much improved reproducibility than before and without
degradation of diamagnetic signal. The high density plasma was attained by adjusting the spacing of the conducting plates
installed in the anchor transition regions. Dependencies of particle confinement time, ion energy confinement time and plasma
confining potential on plasma density were obtained for the first time in the high density region.
Presented at 5th Workshop “Role of Electric Fields in Plasma Confinement and Exhaust”, Montreus, Switzerland, June 23–24,
2002. |
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Keywords: | 52 55 Jd 52 55 s 52 50 b |
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