Fudge: a high-bandwidth fusion diagnostic of the NIF

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Diagnostics for the National Ignition Facility (NIF)/Inertial Confinement Fusion (ICF) program must include good characterization of the fusion source. Ideally, diagnostics would measure the spatially-resolved history of the fusion reaction rate and temperature. Existing diagnostics can satisfy this goal only partially. One class of new techniques that could play a major role in high-yield diagnostics is measurements based on fusion {gamma} rays. The Fusion Diagnostic Gamma Experiment (FUDGE) can be used to perform energy-resolved measurements of (D,T) fusion reaction rates This diagnostic is based on the 16 7-MeV {gamma} rays that are produced by (D,T) fusion. The {gamma} rays are ... continued below

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15 p.

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Moran, M. J., LLNL June 2, 1998.

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Description

Diagnostics for the National Ignition Facility (NIF)/Inertial Confinement Fusion (ICF) program must include good characterization of the fusion source. Ideally, diagnostics would measure the spatially-resolved history of the fusion reaction rate and temperature. Existing diagnostics can satisfy this goal only partially. One class of new techniques that could play a major role in high-yield diagnostics is measurements based on fusion {gamma} rays. The Fusion Diagnostic Gamma Experiment (FUDGE) can be used to perform energy-resolved measurements of (D,T) fusion reaction rates This diagnostic is based on the 16 7-MeV {gamma} rays that are produced by (D,T) fusion. The {gamma} rays are free of spectral dispersion and can be detected with a high bandwidth Cherenkov detector. A simple magnetic monochromator selects signals from the 16 7-MeV {gamma} rays and reduces background signals from non-fusion {gamma} rays.

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15 p.

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OSTI as DE98058591

Other: FDE: PDF; PL:

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  • 12. topical conference on high-temperature plasma diagnostics, Princeton, NJ (United States), 7-11 Jun 1998

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  • Other: DE98058591
  • Report No.: UCRL-JC--129972
  • Report No.: CONF-980605--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 290756
  • Archival Resource Key: ark:/67531/metadc679537

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  • June 2, 1998

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  • July 25, 2015, 2:20 a.m.

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  • April 10, 2017, 1:45 p.m.

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Moran, M. J., LLNL. Fudge: a high-bandwidth fusion diagnostic of the NIF, article, June 2, 1998; California. (digital.library.unt.edu/ark:/67531/metadc679537/: accessed October 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.