Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T13:54:34.166Z Has data issue: false hasContentIssue false
  • English
  • Français

Two-stream cyclotron radiative instabilities due to the marginally mirror-trapped fraction of fusion alphas in tokamaks

Published online by Cambridge University Press:  01 April 1997

V. ARUNASALAM
V. ARUNASALAM
Affiliation:
Princeton University, Princeton Plasma Physics Laboratory, PO Box 451, Princeton, New Jersey 08543, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

It is shown here that the marginally mirror-trapped fraction of newly born fusion alpha particles in deuterium–tritium (DT) reaction-dominated tokamak plasmas can induce a two-stream cyclotron radiative instability for fast Alfvén waves propagating near the harmonics of the alpha-particle cyclotron frequency ωcα. This can explain both the experimentally observed temporal behaviour and spatially localized origin of the fusion-product ion cyclotron emission (ICE) in TFTR at frequencies ω≈mωcα.

Type
Research Article
Information
Journal of Plasma Physics , Volume 57 , Issue 3 , April 1997 , pp. 523 - 533
Copyright
1997 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)