Neutron absorption cross section

AI Thread Summary
Reliable and up-to-date cross-section information for Gadolinium-157, particularly for thermal neutrons, varies widely, with reported values ranging from 70,000 to 450,000 barns. The National Nuclear Data Center (NNDC) is recommended as a trustworthy source for this data. Users can access specific cross-section information through the NNDC website, which offers detailed evaluations. The links provided lead to relevant sections for obtaining accurate values. For precise research, consulting the NNDC is essential.
MajestikMoose
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Does anyone know anywhere where I can find reliable up-to-date cross section infromation? In particular I'm looking for the absorption cross section of Gadolinium-157 for thermal neutrons. Everywhere I look seems to give a different value ranging fro 70000barns up to 450000barns.
 
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