Measurements of an ablator-gas atomic mix in indirectly driven implosions at the National Ignition Facility.
Phys Rev Lett
; 112(2): 025002, 2014 Jan 17.
Article
em En
| MEDLINE
| ID: mdl-24484021
ABSTRACT
We present the first results from an experimental campaign to measure the atomic ablator-gas mix in the deceleration phase of gas-filled capsule implosions on the National Ignition Facility. Plastic capsules containing CD layers were filled with tritium gas; as the reactants are initially separated, DT fusion yield provides a direct measure of the atomic mix of ablator into the hot spot gas. Capsules were imploded with x rays generated in hohlraums with peak radiation temperatures of â¼294 eV. While the TT fusion reaction probes conditions in the central part (core) of the implosion hot spot, the DT reaction probes a mixed region on the outer part of the hot spot near the ablator-hot-spot interface. Experimental data were used to develop and validate the atomic-mix model used in two-dimensional simulations.
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MEDLINE
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En
Ano de publicação:
2014
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Article