The Doppler-defect benchmark: Overview and summary of results

A set of computational benchmarks for the Doppler reactivity defect has been specified for fuel pin cells containing normal or enriched UO2 fuel, reactor-recycle mixed-oxide (MOX) fuel, or weapons-grade MOX fuel. This Doppler benchmark has been approved by the Joint Benchmark Committee of the Mathematics and Computations, Reactor Physics, and Radiation Protection and Shielding Divisions of the American Nuclear Society. This paper describes the benchmark specifications and provides a succinct summary of the results submitted for it. Some of those results are described in more detail in individual companion papers submitted by the participants. The complete set of benchmark specifications is provided in Appendix A. (authors)