Author:
HOLSTEIN P.A.,CHALAND F.,CHARPIN C.,DUFOUR J.M.,DUMONT H.,GIORLA J.,HALLO L.,LAFFITE S.,MALINIE G.,SAILLARD Y.,SCHURTZ G.,VANDENBOOMGAERDE M.,WAGON F.
Abstract
In the previous design, the maximum drive radiation
temperature was 4 MK or 350 eV (Holstein 1996). Different
beam configurations gave roughly the same uniformity with
the NIF-size cavity. Our best configuration used four cones
of beams illuminating three rings. An integrated 2D simulation
pointed out that the symmetry was good enough to reach
a gain of ten. Two evolutions took place in the design
of our MJ laser. We moved from a capsule adapted to 4 MK
(L1000) to another one adapted to 3.5 MK (L1215) in order
to minimize the parametric instabilities (the cavity size
is almost the same). This new capsule also has a better
hydrostability according to the “classical modelling”
(Lindl 1995). The second evolution is a simplification
of the target chamber. We restricted ourselves to two major
configurations for indirect drive (two-ring and three-ring
configurations). Therefore, only three cones of beams are
necessary instead of five cones in the first design. Finally,
the number of holes in the chamber is 80 instead of 100.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics
Cited by
20 articles.
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