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Title: Gamma bang time analysis at OMEGA

Abstract

Absolute bang time measurements with the gas Cherenkov detector (GCD) and gamma reaction history (GRH) diagnostic have been performed to high precision at the OMEGA laser facility at the University of Rochester with bang time values for the two diagnostics agreeing to within 5 ps on average. X-ray timing measurements of laser-target coupling were used to calibrate a facility-generated laser timing fiducial with rms spreads in the measured coupling times of 9 ps for both GCD and GRH. Increased fusion yields at the National Ignition Facility (NIF) will allow for improved measurement precision with the GRH easily exceeding NIF system design requirements.

Authors:
; ; ; ; ; ;  [1]; ;  [2];  [3];  [4];  [5]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. Atomic Weapons Establishment, Aldermaston, Reading, RG7 4PR (United Kingdom)
  3. National Security Technologies-Special Technologies Laboratory, Santa Barbara, California 93101 (United States)
  4. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  5. National Security Technologies, Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
22058650
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 81; Journal Issue: 10; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACCURACY; CHERENKOV COUNTERS; DESIGN; FUSION YIELD; GAMMA DETECTION; LASER TARGETS; LASERS; PHOTONUCLEAR REACTIONS; TIME MEASUREMENT; US NATIONAL IGNITION FACILITY; X RADIATION

Citation Formats

McEvoy, A M, Herrmann, H W, Young, C S, Mack, J M, Kim, Y, Evans, S, Sedillo, T, Horsfield, C J, Rubery, M, Miller, E K, Stoeffl, W, and Ali, Z A. Gamma bang time analysis at OMEGA. United States: N. p., 2010. Web. doi:10.1063/1.3485083.
McEvoy, A M, Herrmann, H W, Young, C S, Mack, J M, Kim, Y, Evans, S, Sedillo, T, Horsfield, C J, Rubery, M, Miller, E K, Stoeffl, W, & Ali, Z A. Gamma bang time analysis at OMEGA. United States. doi:10.1063/1.3485083.
McEvoy, A M, Herrmann, H W, Young, C S, Mack, J M, Kim, Y, Evans, S, Sedillo, T, Horsfield, C J, Rubery, M, Miller, E K, Stoeffl, W, and Ali, Z A. Fri . "Gamma bang time analysis at OMEGA". United States. doi:10.1063/1.3485083.
@article{osti_22058650,
title = {Gamma bang time analysis at OMEGA},
author = {McEvoy, A M and Herrmann, H W and Young, C S and Mack, J M and Kim, Y and Evans, S and Sedillo, T and Horsfield, C J and Rubery, M and Miller, E K and Stoeffl, W and Ali, Z A},
abstractNote = {Absolute bang time measurements with the gas Cherenkov detector (GCD) and gamma reaction history (GRH) diagnostic have been performed to high precision at the OMEGA laser facility at the University of Rochester with bang time values for the two diagnostics agreeing to within 5 ps on average. X-ray timing measurements of laser-target coupling were used to calibrate a facility-generated laser timing fiducial with rms spreads in the measured coupling times of 9 ps for both GCD and GRH. Increased fusion yields at the National Ignition Facility (NIF) will allow for improved measurement precision with the GRH easily exceeding NIF system design requirements.},
doi = {10.1063/1.3485083},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 10,
volume = 81,
place = {United States},
year = {2010},
month = {10}
}