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U.S. Department of Energy
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Covariance Data File Formats for Whisper-1.0 & Whisper-1.1

Technical Report ·
DOI:https://doi.org/10.2172/1338792· OSTI ID:1338792
 [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Whisper is a statistical analysis package developed in 2014 to support nuclear criticality safety (NCS) validation. It uses the sensitivity profile data for an application as computed by MCNP6 along with covariance files for the nuclear data to determine a baseline upper-subcritical-limit (USL) for the application. Whisper version 1.0 was first developed and used at LANL in 2014. During 2015-2016, Whisper was updated to version 1.1 and is to be included with the upcoming release of MCNP6.2. This report describes the file formats used for the covariance data in both Whisper-1.0 and Whisper-1.1.
Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
AC52-06NA25396
OSTI ID:
1338792
Report Number(s):
LA-UR--17-20098
Country of Publication:
United States
Language:
English

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