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Proceedings Paper

Upgrades to the Radiochemistry Analysis of Gas Samples (RAGS) diagnostic at the National Ignition Facility
Author(s): Donald Jedlovec; Kim Christensen; Carol Velsko; Bill Cassata; Wolfgang Stoeffl; Dawn Shaughnessy; John Lugten; Tony Golod; Warren Massey
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Paper Abstract

The Radiochemical Analysis of Gaseous Samples (RAGS) diagnostic apparatus operates at the National Ignition Facility (NIF). At the NIF, xenon is injected into the target chamber as a tracer, used as an analyte in the NIF targets, and generated as a fission product from 14 MeV neutron fission of depleted uranium contained in the NIF hohlraum. Following a NIF shot, the RAGS apparatus used to collect the gas from the NIF target chamber and then to cryogenically fractionate xenon gas. Radio-xenon and other activation products are collected and counted via gamma spectrometry, with the results used to determine critical physics parameters including: capsule areal density, fuel-ablator mix, and nuclear cross sections.

Paper Details

Date Published: 31 August 2015
PDF: 10 pages
Proc. SPIE 9591, Target Diagnostics Physics and Engineering for Inertial Confinement Fusion IV, 95910F (31 August 2015); doi: 10.1117/12.2189240
Show Author Affiliations
Donald Jedlovec, Lawrence Livermore National Lab. (United States)
Kim Christensen, Lawrence Livermore National Lab. (United States)
Carol Velsko, Lawrence Livermore National Lab. (United States)
Bill Cassata, Lawrence Livermore National Lab. (United States)
Wolfgang Stoeffl, Lawrence Livermore National Lab. (United States)
Dawn Shaughnessy, Lawrence Livermore National Lab. (United States)
John Lugten, Lawrence Livermore National Lab. (United States)
Tony Golod, Lawrence Livermore National Lab. (United States)
Warren Massey, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 9591:
Target Diagnostics Physics and Engineering for Inertial Confinement Fusion IV
Jeffrey A. Koch; Gary P. Grim, Editor(s)

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