Analysis of fast-ion D alpha data from the National Spherical Torus Experiment

作者：Heidbrink W W^*; Ruskov E; Liu D; Stagner L; Fredrickson E D; Podesta M; Bortolon A

来源：Nuclear Fusion, 2016, 56(5): 056005.

DOI：10.1088/0029-5515/566/056005

• Alfven eigenmodes
• energetic particles
• spherical tokamak

Measured fast-ion Dc, (FIDA) data from an extensive NSTX database are compared to 'classical' predictions that neglect transport by instabilities, Even in the absence of appreciable MHD, in many cases, the profile peaks at smaller major radius and the profile is broader than the predictions. Abrupt large -amplitude MHD events flatten the FIDA profile, as do most toroidal Alfven eigenmode (TAE) avalanche events. Generally, the onset of a long-lived mode also flattens the FIDA profile,

• 出版日期2016-5