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Runaway electron studies in the startup phase of very low edge safety factor (qa) (VLQ) discharges in the SINP tokamak

A.N. Sekar Iyengar, R. Pal, S. Lahiri, S. Mukhopadhyay1998年被引用 7Nuclear FusionIF 3出版社

Two interesting features of runaway behaviour are observed in the startup phase of the very low qa (VLQ) (1 < qa < 2) discharges in the SINP tokamak. As qa was reduced by lowering the toroidal field values, the hard X (HX) ray intensity (which indicates the presence of runaway electrons) fell considerably. The time at which the peak in the HX ray intensity occurs also shifts ahead in time, indicating premature dumping of the runaway electrons. This seems to aid the development of the rest of the discharge as exhibited by the diamagnetic loop signal.

日本語訳

SINPトカマクにおける非常に低いqa(VLQ)(1 < qa < 2)放電の立ち上げ段階で、ランナウェイ挙動の2つの興味深い特徴が観測される。トロイダル磁場値を下げてqaを減少させると、硬X線(HX)強度(ランナウェイ電子の存在を示す)はかなり低下した。HX線強度のピークが生じる時間も時間的に前方へずれ、ランナウェイ電子の早期放出を示している。これは、ダイアマグネティックループ信号によって示されるように、放電の残りの部分の発達を助けるように思われる。

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