Deep Dive Topic: Choosing between ablators

Technical Report · Tue Jul 14 00:00:00 EDT 2015

DOI:https://doi.org/10.2172/1241944· OSTI ID:1241944

Hurricane, O. A. ^[1]; Thomas, C. ^[1]; Olson, R. ^[1]

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1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Recent data on implosions using identical hohlraums and very similar laser drives underscores the conundrum of making a clear choice of one ablator over another. Table I shows a comparison of Be and CH in a nominal length, gold, 575 μm-diameter, 1.6 mg/cc He gas-fill hohlraum while Table II shows a comparison of undoped HDC and CH in a +700 length, gold, 575 μm diameter, 1.6 mg/cc He gas fill hohlraum. As can be seen in the tables, the net integrated fusion performance of these ablators is the same to within error bars. In the case of the undoped HDC and CH ablators, the hot spot shapes of the implosions were nearly indistinguishable for the experiments listed in Table II.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1241944
• Report Number(s): LLNL-TR-674575; TRN: US1600906
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
ABLATION
BERYLLIUM
THERMONUCLEAR REACTIONS
COMPARATIVE EVALUATIONS
IMPLOSIONS
HOT SPOTS
LASER-PRODUCED PLASMA
D-T OPERATION
PERFORMANCE
SHAPE