Neutron based evaluation in support of NEAMS

Vogel, Sven C.¹  Bourke, Mark Andrew¹  Losko, Adrian Simon¹ 

[1] Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: neutron modeling neams imaging scattering;   

DOI  :  10.2172/1257113
RP-ID  :  LA-UR--16-23977
PID  :  OSTI ID: 1257113

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

The primary objective of the Advanced Non-Destructive fuel Examination (ANDE) work package is to develop capability that has the potential to accelerate insight and development of ceramic and metallic fuels. Establishing unique validation opportunities for new models is a key component of this effort. To explore opportunities a series of interactions were held with NEAMS modelers at LANL. The focus was to identify experiments that draw on the unique capabilities of neutron scattering and imaging for studies of nuclear fuel particularly in areas where experimental data can be valuable for of models validation. The neutron characterization techniques applied in the ANDE program span length scales from millimeter to micrometer to angstroms. Spatial heterogeneities of interest include cracks, pores and inclusions, crystal structure, phase composition, stoichiometry texture, chemistry and atomic thermal motion. Neutrons offer characterization opportunities that are distinct from other probes such as X-rays, electrons or protons. This report describes a variety of opportunities whereby neutron data can be related to models and lists some opportunities.