Neutral Particle Analyzer Measurements of Ion Behavior in NSTX

Medley, S.S. ; Bell, R.E. ; Darrow, D.S. ; Roquemore, A.L.

Princeton University. Plasma Physics Laboratory.

关键词: Beam Injection;    Heating;    75 Condensed Matter Physics, Superconductivity And Superfluidity;    70 Plasma Physics And Fusion Technology;    Recombination;   

DOI  :  10.2172/796122
RP-ID  :  PPPL-3668.pdf
RP-ID  :  AC02-76CH03073
RP-ID  :  796122

美国|英语

来源: UNT Digital Library

【 摘 要 】

Initial results obtained with the Neutral Particle Analyzer (NPA) diagnostic on the National Spherical Torus Experiment (NSTX) are presented. Magnetohydrodynamic activity and reconnection events cause depletion of the deuterium energetic ion distribution created by neutral-beam injection. Adding High Harmonic Fast Wave Heating to neutral-beam-heated discharges results in the generation of an energetic ion tail above the beam injection energy. NPA measurements of the residual hydrogen ion temperature are in good agreement with those from recombination spectroscopy.