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Developing an experimental basis for understanding transport in NIF hohlraum plasmas

Abstract:
We report on the first multilocation electron temperature (Te) and flow measurements in an ignition hohlraum at the National Ignition Facility using the novel technique of mid-Z spectroscopic tracer “dots.” The measurements define a low resolution “map” of hohlraum plasma conditions and provide a basis for the first multilocation tests of particle and energy transport physics in a laser-driven x-ray cavity. The data set is consistent with classical heat flow near the capsule but reduced heat flow near the laser entrance hole. We evaluate the role of kinetic effects, self-generated magnetic fields, and instabilities in causing spatially dependent heat transport in the hohlraum.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/physrevlett.121.095002

Authors



Publisher:
American Physical Society
Journal:
Physical Review Letters More from this journal
Volume:
121
Issue:
9
Article number:
095002
Publication date:
2018-08-31
Acceptance date:
2018-07-31
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pmid:
30230893


Language:
English
Keywords:
Pubs id:
pubs:920959
UUID:
uuid:8717f4a1-3e06-481d-bdc3-4ecfa4a18194
Local pid:
pubs:920959
Source identifiers:
920959
Deposit date:
2019-06-12

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