Photo Doppler Velocimetry and Gamma/Neutron Yield Measurements of Godiva-IV Critical Assembly

Conference · Sun Jun 20 00:00:00 EDT 2021 · Transactions of the American Nuclear Society

OSTI ID:1834485

Snyder, Lucas A. ^[1]; Bower, Dan ^[2]; Buckles, Robert ^[3]; Goda, Joetta ^[2]; May, Mark ^[1]; Peña, Michael ^[3]; Scorby, John ^[1]

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1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
3. Nevada National Security Site/Mission Support and Test Services LLC (NNSS/MSTS), North Las Vegas, NV (United States)

The purpose of this experiment was to collect data for a dynamic benchmark of the Godiva-IV burst assembly. Data were taken using two different measurement systems. The gamma & neutron flux was measured using a calibrated, high-dynamic-range scintillator detector, the MHD-240. The measurement will be used to determine the total fission yield and alpha throughout the burst and shutdown sequence of Godiva-IV. The Photon Doppler Velocimetry (PDV) measurement detected the surface motion of the burst assembly as a function of time. The combined data will be used in a multi-physics simulation of the Godiva-IV burst assembly.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP)
• DOE Contract Number: AC52-07NA27344; 89233218CNA000001; NA0003624
• OSTI ID: 1834485
• Report Number(s): LLNL-CONF-824088; 1036823
• Journal Information: Transactions of the American Nuclear Society, Journal Name: Transactions of the American Nuclear Society Journal Issue: 1 Vol. 125; ISSN 0003-018X
• Publisher: American Nuclear Society
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Nuclear Criticality Safety Program (NCSP)
integral experiments