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Title: Criticality Safety Evaluation of the LLNL Inherently Safe Subcritical Assembly (ISSA)

Technical Report ·
DOI:https://doi.org/10.2172/1260502· OSTI ID:1260502
 [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

The LLNL Nuclear Criticality Safety Division has developed a training center to illustrate criticality safety and reactor physics concepts through hands-on experimental training. The experimental assembly, the Inherently Safe Subcritical Assembly (ISSA), uses surplus highly enriched research reactor fuel configured in a water tank. The training activities will be conducted by LLNL following the requirements of an Integration Work Sheet (IWS) and associated Safety Plan. Students will be allowed to handle the fissile material under the supervision of LLNL instructors. This report provides the technical criticality safety basis for instructional operations with the ISSA experimental assembly.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
OSTI ID:
1260502
Report Number(s):
LLNL-TR-662653
Country of Publication:
United States
Language:
English