Improved calibration of the OMEGA gas Cherenkov detector

Zylstra, A. B.; Herrmann, H. W.; Kim, Y. H.; McEvoy, A.; Meaney, K.; Glebov, V. Yu.; Forrest, C.; Rubery, M.

doi:10.1063/1.5128765

Title: Improved calibration of the OMEGA gas Cherenkov detector

Journal Article · 10 December 2019 · Review of Scientific Instruments

DOI: https://doi.org/10.1063/1.5128765 · OSTI ID:1844067

^[1];

^[2]; Kim, Y. H. ^[2]; McEvoy, A. ^[2];

^[2]; Glebov, V. Yu. ^[3];

^[3]; Rubery, M. ^[4]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of Rochester, NY (United States)
Atomic Weapons Establishment (AWE), Reading (United Kingdom)

Inertial fusion implosions are diagnosed using γ rays to characterize the implosion physics or measure basic nuclear properties, including cross sections. For the latter, previously reported measurements at laser facilities using gas Cherenkov detectors are limited by a large systematic uncertainty in the detector response. We present a novel in situ calibration technique using neutron inelastic scattering, which we apply to the new GCD-3 detector. In this work, the calibration accuracy is improved by ~3× over the previous method.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC52-06NA25396; AC52-07NA27344

OSTI ID:: 1844067

Report Number(s):: LLNL-JRNL-789979; 986247

Journal Information:: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 12 Vol. 90; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Cherenkov detectors
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Title: Improved calibration of the OMEGA gas Cherenkov detector

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