Ions lost on their first orbit can impact Alfvén eigenmode stability

Journal Article · Sat Aug 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4928436· OSTI ID:22490058

Heidbrink, W. W. ^[1]; Fu, Guo-Yong ^[2]; Van Zeeland, M. A. ^[3]

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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)

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.

• OSTI ID: 22490058
• Journal Information: Physics of Plasmas, Vol. 22, Issue 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALFVEN WAVES
EIGENFREQUENCY
ION BEAMS
IONS
ORBITS
PARTICLES
RESONANCE
STABILITY