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New Type of End-Loss Energy Component Analyzer and Velocity Distribution Function of End-Loss Ions in Tandem Mirror

A new type of end-loss energy component analyzer (ELECA) has been developed in order to investigate ion confinement of the tandem mirror. The essential advantage of the use of the ELECA is the ability to determine distribution functions of end-loss ions every moment during plugging in one shot. The...

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Published in:Japanese Journal of Applied Physics 1994-10, Vol.33 (10R), p.5971
Main Authors: Kameo Ishii, Kameo Ishii, Toshiaki Tanaka, Toshiaki Tanaka, Toshitaka Nakada, Toshitaka Nakada, Takehiro Katori, Takehiro Katori, Akira Abe, Akira Abe, Toshiki Takahashi, Toshiki Takahashi, Isao Katanuma, Isao Katanuma, Akiyosi Itakura, Akiyosi Itakura, Kiyoshi Yatsu, Kiyoshi Yatsu, Teruo Tamano, Teruo Tamano
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cited_by cdi_FETCH-LOGICAL-c426t-4d7288c5c5b3fef27a5609431e6f786771760586c6151bc3a2efae370093d26d3
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container_end_page
container_issue 10R
container_start_page 5971
container_title Japanese Journal of Applied Physics
container_volume 33
creator Kameo Ishii, Kameo Ishii
Toshiaki Tanaka, Toshiaki Tanaka
Toshitaka Nakada, Toshitaka Nakada
Takehiro Katori, Takehiro Katori
Akira Abe, Akira Abe
Toshiki Takahashi, Toshiki Takahashi
Isao Katanuma, Isao Katanuma
Akiyosi Itakura, Akiyosi Itakura
Kiyoshi Yatsu, Kiyoshi Yatsu
Teruo Tamano, Teruo Tamano
description A new type of end-loss energy component analyzer (ELECA) has been developed in order to investigate ion confinement of the tandem mirror. The essential advantage of the use of the ELECA is the ability to determine distribution functions of end-loss ions every moment during plugging in one shot. The ELECA was carefully designed, taking account of the influence of the fringing electrostatic field and weak leakage magnetic field on ion trajectories in the analyzer. The new diagnostics has been applied to the tandem mirror GAMMA 10. Consequently, it was verified from the viewpoint of ion distribution in velocity space that plug potential was created upon turning on electron cyclotron resonance heating (ECRH) even without sloshing ions caused by neutral beam injection (NBI), and at the same time, the structure with double loss boundaries changed to a simple structure.
doi_str_mv 10.1143/JJAP.33.5971
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title New Type of End-Loss Energy Component Analyzer and Velocity Distribution Function of End-Loss Ions in Tandem Mirror
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