Gamma bang time analysis at OMEGA |
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| Authors: | McEvoy A M Herrmann H W Horsfield C J Young C S Miller E K Mack J M Kim Y Stoeffl W Rubery M Evans S Sedillo T Ali Z A |
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| Affiliation: | Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA. amcevoy@lanl.gov |
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| 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. |
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