Multibeam effects on fast-electron generation from two-plasmon-decay instability.
Phys Rev Lett
; 90(23): 235002, 2003 Jun 13.
Article
in En
| MEDLINE
| ID: mdl-12857266
ABSTRACT
Experiments with multiple laser beams have been carried out in both spherical and planar geometry to study two-plasmon-decay instability, the predominant source of suprathermal electrons in direct-drive inertial confinement fusion experiments. These electrons are observed using the hard x rays generated through electron-target interactions. The experiments show for the first time that the total overlapped intensity governs the scaling of the suprathermal-electron generation regardless of the number of overlapped beams, in contrast to conventional theories that are based on the single-beam approximation.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2003
Document type:
Article
Affiliation country:
United States