Phys. Rev. ST Accel. Beams 3, 019401 (2000) [2 pages]Comment on “Natural BNS damping of the fast ion instability” |
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G. V. Stupakov
Stanford Linear Accelerator Center, Stanford University, P.O. Box 4349, Stanford, California 94309
Received 14 June 1999; published 11 January 2000
We show that the effect of BNS damping for the fast ion instability found in the recent paper “Natural BNS damping of the fast ion instability” [Phys. Rev. ST Accel. Beams 2, 044403 (1999)] occurs only when initial perturbations in the beam are amplified by many orders of magnitude, and, most likely, the linear approximation breaks down. We also demonstrate that the asymptotic solution found by Raubenheimer and Zimmermann gives a good approximation for the linear regime of the instability contrary to the statement of Pestrikov.
©2000 The American Physical Society
URL: http://link.aps.org/abstract/PRSTAB/v3/e019401
DOI: 10.1103/PhysRevSTAB.3.019401
PACS: 29.27.-a, 41.85.-p
See Also
Original: D. V. Pestrikov, Natural BNS damping of the fast ion instability, Phys. Rev. ST Accel. Beams 2, 044403 (1999)
Erratum: D. V. Pestrikov, Erratum: Natural BNS damping of the fast ion instability [Phys. Rev. ST Accel. Beams 2, 044403 (1999)], Phys. Rev. ST Accel. Beams 4, 119901 (2001)
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