Title of article :
Impact of bumpiness control on edge plasma in a helical-axis heliotron device
Author/Authors :
Mizuuchi، نويسنده , , T. and Watanabe، نويسنده , , S. and Fujikawa، نويسنده , , S. and Okada، نويسنده , , H. and Kobayashi، نويسنده , , S. and Yabutani، نويسنده , , H. and Nagasaki، نويسنده , , K. and Nakamura، نويسنده , , H. and Torii، نويسنده , , Y. and Yamamoto، نويسنده , , S. and Kaneko، نويسنده , , M. and Arimoto، نويسنده , , H. and Motojima، نويسنده , , G. and Kitagawa، نويسنده , , H. and Tsuji، نويسنده , , T. and Uno، نويسنده , , M. and Matsuoka، نويسنده , , S. and Nosaku، نويسنده , , Coran M. H. Watanabe، نويسنده , , N. and Nakamura، نويسنده , , Y. and Hanatani، نويسنده , , K. and Kondo، نويسنده , , K. and Sano، نويسنده , , F.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Pages :
5
From page :
600
To page :
604
Abstract :
In the helical-axis heliotron configuration, bumpiness of the confinement field εb is introduced to control the plasma transport. The plasma performance were experimentally investigated in Heliotron J for three configurations with εb = 0.01, 0.06 and 0.15 at ρ = 2/3. The obtained volume-averaged stored energy depends on the configuration. To understand the observed difference in global energy confinement, the εb-control effects on the edge plasma is discussed. For εb = 0.01, the plasma density and temperature in the peripheral region is low compared to other cases. This poor plasma edge relates to the observed low stored energy or poor energy confinement for εb = 0.01.
Keywords :
Bumpiness control , Heliotron J , Helical-axis heliotron
Journal title :
Journal of Nuclear Materials
Serial Year :
2007
Journal title :
Journal of Nuclear Materials
Record number :
1364850
Link To Document :
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