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Fast ignition by intense laser-accelerated proton beams.
M Roth ,
T E Cowan ,
M H Key ,
S P Hatchett ,
C Brown ,
W Fountain ,
J Johnson ,
D M Pennington ,
R A Snavely ,
S C Wilks ,
K Yasuike ,
H Ruhl ,
F Pegoraro ,
S V Bulanov ,
E M Campbell ,
M D Perry ,
H Powell
Jan 15 2001
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Abstract
The concept of fast ignition with inertial confinement fusion (ICF) is a way to reduce the energy required for ignition and burn and to maximize the gain produced by a single implosion. Based on recent experimental findings at the PETAWATT laser at Lawrence Livermore National Laboratory, an intense proton beam to achieve fast ignition is proposed. It is produced by direct laser acceleration and focused onto the pellet from the rear side of an irradiated target and can be integrated into a hohlraum for indirect drive ICF.