A generalized sufficient condition for velocity-space stability of fusion product distributions and application to heating of d-t tokamak reactors

J. G. Cordey; Robert James Goldston; D. R. Mikkelsen

doi:10.1088/0029-5515/21/5/007

A generalized sufficient condition for velocity-space stability of fusion product distributions and application to heating of d-t tokamak reactors

J. G. Cordey, Robert James Goldston, D. R. Mikkelsen

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Abstract

A generalized condition is derived for the velocity-space distribution of suprathermal alpha- particles to be monotonically decreasing with energy — and hence stable to homogeneous plasma instabilities — during the heating phase of a tokamak reactor. This stability condition is easily satisfied for presently envisaged neutral-injection heating of reactors, but may be violated in strong heating of smaller plasmas or during fast compressional heating.

Original language	English (US)
Pages (from-to)	581-588
Number of pages	8
Journal	Nuclear Fusion
Volume	21
Issue number	5
DOIs	https://doi.org/10.1088/0029-5515/21/5/007
State	Published - May 1981

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

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title = "A generalized sufficient condition for velocity-space stability of fusion product distributions and application to heating of d-t tokamak reactors",

abstract = "A generalized condition is derived for the velocity-space distribution of suprathermal alpha- particles to be monotonically decreasing with energy — and hence stable to homogeneous plasma instabilities — during the heating phase of a tokamak reactor. This stability condition is easily satisfied for presently envisaged neutral-injection heating of reactors, but may be violated in strong heating of smaller plasmas or during fast compressional heating.",

author = "Cordey, {J. G.} and Goldston, {Robert James} and Mikkelsen, {D. R.}",

year = "1981",

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AU - Goldston, Robert James

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Y1 - 1981/5

N2 - A generalized condition is derived for the velocity-space distribution of suprathermal alpha- particles to be monotonically decreasing with energy — and hence stable to homogeneous plasma instabilities — during the heating phase of a tokamak reactor. This stability condition is easily satisfied for presently envisaged neutral-injection heating of reactors, but may be violated in strong heating of smaller plasmas or during fast compressional heating.

AB - A generalized condition is derived for the velocity-space distribution of suprathermal alpha- particles to be monotonically decreasing with energy — and hence stable to homogeneous plasma instabilities — during the heating phase of a tokamak reactor. This stability condition is easily satisfied for presently envisaged neutral-injection heating of reactors, but may be violated in strong heating of smaller plasmas or during fast compressional heating.

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A generalized sufficient condition for velocity-space stability of fusion product distributions and application to heating of d-t tokamak reactors

Abstract

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