Observation of high soft x-ray drive in large-scale hohlraums at the National Ignition Facility.
Phys Rev Lett
; 106(8): 085003, 2011 Feb 25.
Article
em En
| MEDLINE
| ID: mdl-21405579
ABSTRACT
The first soft x-ray radiation flux measurements from hohlraums using both a 96 and a 192 beam configuration at the National Ignition Facility have shown high x-ray conversion efficiencies of â¼85%-90%. These experiments employed gold vacuum hohlraums, 6.4 mm long and 3.55 mm in diameter, heated with laser energies between 150-635 kJ. The hohlraums reached radiation temperatures of up to 340 eV. These hohlraums for the first time reached coronal plasma conditions sufficient for two-electron processes and coronal heat conduction to be important for determining the radiation drive.
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MEDLINE
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En
Ano de publicação:
2011
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Article