A novel particle Time Of Flight (pTOF) diagnostic for measurements of shock- and compression-bang times in D3He and DT implosions at the NIF [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2012.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: PDF-file: 6 pages; size: 0.6 Mbytes
Additional Creators:: Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

The particle-time-of-flight (pTOF) diagnostic, fielded alongside a Wedge Range-Filter (WRF) proton spectrometer, will provide an absolute timing for the shock-burn weighted ρR measurements that will validate the modeling of implosion dynamics at the National Ignition Facility (NIF). In the first phase of the project, pTOF has recorded accurate bang times in cryogenic DT, DT-Exploding Pusher and D³He implosions using DD or DT neutrons with an accuracy better than ±70 ps. In the second phase of the project, a deflecting magnet will be incorporated into the pTOF design for simultaneous measurements of shock- and compression-bang times in D³He-filled surrogate implosions using D³He protons and DD-neutrons, respectively.

Report Numbers:

E 1.99:llnl-conf-555914
llnl-conf-555914

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Note:

Published through SciTech Connect.
05/02/2012.
"llnl-conf-555914"
Presented at: 19th Topical Conference High-Temperature Plasma Diagnostics, Monterey, CA, United States, May 06 - May 10, 2012.
Doeppner, T; Park, H S; Stoeckl, C; Li, C K; Frenje, J A; Zylstra, A B; Rygg, J R; Mackinnon, A; Kline, J; Seguin, F H; Glebov, V Y; Landen, O; Meezan, N; Kilkenny, J; Johnson, M G; Lepape, S; Sangster, T; Rinderknecht, H G; Sinenian, N; Rosenbergh, M J; Waugh, C J; Petrasso, R; Olson, R.

Funding Information:

W-7405-ENG-48

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