Full Title: The Effect of Temperature on the Neutron Multiplication Factor for Pressurised Water Reactor Fuel Assemblies: A Temperature Analysis Benchmark
Author(s): Sonny Gan and Anthony R. Wilson
Publisher(s): Nuclear Energy Agency
Publication Date: November 3, 2023
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Description (excerpt):
There is significant international interest in the effects of temperature on criticality safety evaluations. Improved access to nuclear data, notably thermal scattering data for hydrogen in ice, has made it possible to assess and deepen the understanding of the variation of criticality calculations associated with temperature.
Under the auspices of the NEA Nuclear Science Committee (NSC) and of the Working Party on Nuclear Criticality Safety (WPNCS), Subgroup 3 was launched to study the impact of temperature through a wide range of codes, data libraries and methods. The exercise was successful in bringing together a large number of institutions and employing a wide range of calculation codes and nuclear data libraries, thereby providing solid evidence for the conclusions drawn.