Two-stream cyclotron radiative instabilities due to the marginally mirror-trapped fraction for fustion alphas in tokamaks
It is shown here that the marginally mirror-trapped fraction of the newly-born fusion alpha particles in the deuterium-tritium (DT) reaction dominated tokamak plasmas can induce a two-stream cyclotron radiative instability for the fast Alfven waves propagating near the harmonics of the alpha particle cyclotron frequency {omega}{sub c{alpha}}. This can explain both the experimentally observed time behavior and the spatially localized origin of the fusion product ion cyclotron emission (ICE) in TFTR at frequencies {omega} {approx} m{omega}{sub c{alpha}}.
- Research Organization:
- Princeton Univ., NJ (United States). Plasma Physics Lab.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 93669
- Report Number(s):
- PPPL--3124; ON: DE95016238
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alfvenic behavior of alpha particle driven ion cyclotron emission in TFTR
Alfven cyclotron instability and ion cyclotron emission
Excitation of Alfven cyclotron instability by charged fusion products in tokamaks
Technical Report
·
Sat Jul 01 00:00:00 EDT 1995
·
OSTI ID:93736
Alfven cyclotron instability and ion cyclotron emission
Technical Report
·
Sat Jul 01 00:00:00 EDT 1995
·
OSTI ID:90237
Excitation of Alfven cyclotron instability by charged fusion products in tokamaks
Journal Article
·
Thu Jun 01 00:00:00 EDT 1995
· Physics of Plasmas
·
OSTI ID:63595