WPNCS Expert Group on Uncertainty Analyses for Criticalify Safety Assessment

The necessity to formalise a procedure for the validation of codes for criticality computation based on rigorous techniques has become an important issue. The reasons for developing methodologies and tools that provide an approach for such a validation are as follows:

• handling of fission materials has become more complex due to the diversity of fresh irradiated fuel (higher burnups, MOX and UOX fuel, increase in enrichment)
• the changeover to innovative nuclear systems;
• globalised demand for nuclear energy in countries with insufficient experience and infrastructure to manage fission materials;
• economic realities requiring the reduction of costs related to the redundant safety margin.

First meeting of the Expert Group on Uncertainty Analyses for Criticalify Safety Assessment, 4-5 December 2008 at the NEA Headqueaters, France

Registration (Deadline 28 November 2008)

Participants List

Draft agenda

Back to the WPNCS Home Page

Practical information

Ongoing work

• Mandate OECD/NEA/NSC/WPNCS Expert Group on Uncertainty Analysis for Criticality Safety Assessment
• Agenda with a link to the presentations
• Work plan for 2008 (requires password)
• State of the art report content and Benchmark specifications (requires password)
• Naito comments on uncertainty analysis using covariance data (requires password)
• 44-group covariance matrices data library from SCALE 5.1 Requested via de NEA/Data Bank/Computer service

Related links

NEA Working Party on Nuclear Criticality Safety

Nuclear Science Committee

E-mail contact: Yolanda Rugama (yolanda.rugama@oecd.org)

Last updated: 31 July 2008