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U.S. Department of Energy
Office of Scientific and Technical Information

Environmental Challenges for the Nuclear Diagnostics on the NIF and LMJ

Conference ·
OSTI ID:946614
The National Ignition Facility (NIF) and Laser Mega Joule (LMJ) facilities are currently under construction in the United States and France. Ignited targets at these facilities are anticipated to produce up to 1019 deuterium-tritium fusion neutrons. This will provide unprecedented opportunities and challenges for the use of nuclear diagnostics in inertial confinement fusion experiments. The NIF and LMJ nuclear diagnostics will work in a harsh radiation environment that includes neutron, hard x-ray, and gamma backgrounds, neutron induced signals in coaxial cables, and electromagnetic pulse (EMP) generated signals. Recent results of different background measurements on OMEGA laser facility will be reported. Based on these results, specific design concepts have been identified to mitigate much of the radiation and EMP-induced backgrounds. An overview of the background mitigation techniques in the NIF nuclear diagnostics conceptual designs will be presented.
Research Organization:
National Security Technologies, LLC
Sponsoring Organization:
USDOE National Nuclear Security Administration (NA)
DOE Contract Number:
AC52-06NA25946
OSTI ID:
946614
Report Number(s):
DOE/NV/25946--154
Country of Publication:
United States
Language:
English