Methane Screening in JET Reverse Field Experiments

Strachan, J.D. ; Alper, B. ; Corrigan, G. ; Erents, S.K. ; Giroud, C. ; Korotkov, A. ; Leggate, H. ; Mathews, G.F. ; Pitts, R.A. ; Stamp, M. ; Spence, J.

Princeton University. Plasma Physics Laboratory.

关键词: Efficiency;    Magnetic Fields;    Origin;    70 Plasma Physics And Fusion Technology;    Edge Plasma;   

DOI  :  10.2172/828003
RP-ID  :  PPPL-3959
RP-ID  :  AC02-76CH03073
RP-ID  :  828003

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来源: UNT Digital Library

【 摘 要 】

JET plasmas with reverse magnetic field feature a different SOL flow than those with normal field. The observed carbon fueling efficiency from injecting methane gas was similar in reverse and normal field. EDGE2D modeling used an externally applied force to create the SOL flows, without specifying the origin of the force. The resulting flow agreed reasonably with the experimental values between the separatrix and 4 cm mid-plane depth in the SOL. The effect of the flow on the calculated carbon screening was 5 to 15% higher carbon fueling efficiency for the low flow velocity with reverse field.