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Title: Final report on NA22 Project: A Comprehensive Capability to Use Prompt Fission Signatures to Detect SNM

Technical Report ·
DOI:https://doi.org/10.2172/1119957· OSTI ID:1119957
 [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

The objective of this project is to provide a general capability that will facilitate detection of high-sensitivity nuclear material for both active interrogation and passive systems. Currently these systems are able to use only a small fraction of the information carried by particles emitted during ssion. Our improvements in physics modeling and simulation tools would enable exhaustive use of prompt ssion signatures. In particular, this project will provide a computationally e cient event-by-event description of ssion that explicitly describes all of the correlations associated with the production and subsequent decay of fragments formed in ssion. We will use existing data to validate our model as far as possible, including trying to make use of data from current NA22 funded projects. Once complete, we will make our code, FREYA, publicly available either as a standalone code or as a module in Monte Carlo transport codes.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
1119957
Report Number(s):
LLNL-TR-648792
Country of Publication:
United States
Language:
English

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