Confinement of Neutral Beam Ions in the National Spherical Torus Experiment

[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.

[发布日期] 2001-12-18 [发布机构] Princeton University. Plasma Physics Laboratory.

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