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Title: Ions lost on their first orbit can impact Alfvén eigenmode stability

Some neutral-beam ions are deflected onto loss orbits by Alfvén eigenmodes on their first bounce orbit. The resonance condition for these ions differs from the usual resonance condition for a confined fast ion. Estimates indicate that particles on single-pass loss orbits transfer enough energy to the wave to alter mode stability.
Authors:
 [1] ;  [2] ;  [3]
  1. Physics & Astronomy, University of California Irvine, Irvine, California 92697 (United States)
  2. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
  3. General Atomics, San Diego, California 92186 (United States)
Publication Date:
OSTI Identifier:
22490058
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALFVEN WAVES; EIGENFREQUENCY; ION BEAMS; IONS; ORBITS; PARTICLES; RESONANCE; STABILITY