Journal
RADIATION PHYSICS AND CHEMISTRY
Volume 75, Issue 5, Pages 551-556Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.radphyschem.2005.12.026
Keywords
fusion; d plus t; He-5; R-matrix; Cherenkov; omega; gamma rays
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As fusion ignition conditions are approached using the national ignition facility (NIF), independent high-bandwidth gamma-ray fusion burn measurements become essential complements to information obtained from neutron diagnostics. The 16.75-MeV gamma rays that accompany deuterium-tritium (d + t) fusion can be detected using a high-bandwidth gaseous carbon dioxide Cherenkov threshold detector. The detection energy threshold was set by the CO2 gas pressure. A I-GHz detector system was fielded successfully at the Omega laser facility, demonstrating unambiguous detection of high-energy fusion gamma rays from high-yield d + t implosions. An experiment to detect the similar to 12.5 MeV d-t fusion gamma ray is described. (c) 2006 Elsevier Ltd. All rights reserved.
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