A novel particle time of flight diagnostic for measurements of shock- and compression-bang times in D{sup 3}He and DT implosions at the NIF

Journal Article · Mon Oct 15 04:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4731000· OSTI ID:22093869

Rinderknecht, H. G.; Johnson, M. Gatu; Zylstra, A. B.; Sinenian, N.; Rosenberg, M. J.; Frenje, J. A.; Waugh, C. J.; Li, C. K.; Seguin, F. H.; Petrasso, R. D. ^[1]; Rygg, J. R.; Kimbrough, J. R.; MacPhee, A.; Collins, G. W.; Hicks, D.; Mackinnon, A.; Bell, P.; Bionta, R.; Clancy, T.; Zacharias, R. ^[2] ; others, and

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1. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

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 {rho}R 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 D{sup 3}He 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 D{sup 3}He-filled surrogate implosions using D{sup 3}He protons and DD-neutrons, respectively.

• OSTI ID: 22093869
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 83; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCURACY
CRYOGENICS
FILTERS
IMPLOSIONS
NEUTRONS
PLASMA DIAGNOSTICS
PROTON SPECTROMETERS
SHOCK WAVES
SIMULATION
TIME-OF-FLIGHT METHOD
TOKAMAK DEVICES
US NATIONAL IGNITION FACILITY