Deep Dive Topic: Choosing between ablators

Hurricane, O. A.¹  Thomas, C.¹  Olson, R.¹ 

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

关键词: ABLATION;    BERYLLIUM;    THERMONUCLEAR REACTIONS;    COMPARATIVE EVALUATIONS;    IMPLOSIONS;    HOT SPOTS;    LASER-PRODUCED PLASMA;    D-T OPERATION;    PERFORMANCE;    SHAPE;   

DOI  :  10.2172/1241944
RP-ID  :  LLNL--TR-674575
PID  :  OSTI ID: 1241944
Others  :  TRN: US1600906

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

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 ??m-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 ??m 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.