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Project

Nuclear Data Measurements

Topic: Nuclear Science and Technology

Problem Statement

Most analysis and simulation codes rely on evaluated neutron cross-section data from libraries such as ENDF/B-VII.1, JEFF3.1, or JENDL-4.0. High-quality nuclear data with covariances are required for the design and analysis of nuclear systems. However, data deficiencies and missing covariances in some existing cross-section evaluations make new neutron induced cross-section measurements necessary. 

Technical Approach

New high-resolution neutron induced time-of-flight experiments are performed in the resolved and unresolved resonance range. The data are reduced to neutron total, scattering, capture or fission cross sections, respectively.

Benefit

The newly measured high quality cross section data are the basis for a new evaluation. The final evaluated nuclear data with covariances will be submitted to the National Nuclear Data Center to be included in the ENDF library. 

Sponsor

US DOE National Nuclear Security Administration, NA-50 Nuclear Criticality Safety Program (NCSP)

Partner

European Commission JRC-IRMM, Geel, Belgium

Rensselaer Polytechnic Institute, Troy, NY

Principal Investigator

Klaus Guber

Project Details

Start Date