Confinement of Neutral Beam Ions in the National Spherical Torus Experiment

Darrow, D.S. ; Medley, S.S. ; Roquemore, A.L. ; Rosenberg, A.

Princeton University. Plasma Physics Laboratory.

关键词: 70 Plasma Physics And Fusion Technology;    Faraday Cups;    Thermocouples;    Confinement;    Plasma;   

DOI  :  10.2172/792997
RP-ID  :  PPPL-3641
RP-ID  :  AC02-76CH03073
RP-ID  :  792997

美国|英语

来源: UNT Digital Library

【 摘 要 】

The loss of neutral-beam ions to the wall has been measured in the National Spherical Torus Experiment (NSTX) by means of thermocouples, an infrared (IR) camera, and a Faraday cup probe. The losses tend to exhibit the expected dependences on plasma current, tangency radius of the injector, and plasma outer gap. However, the thermocouples and the Faraday cups indicate substantially different levels of loss and this difference has yet to be understood.