neutron absorption cross section

[MajestikMoose]

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.

[GammaScanner]

This place works for me:

http://www.nndc.bnl.gov/sigma/index.jsp

[Astronuc]

Taking it one step further at NNDC.

http://www.nndc.bnl.gov/sigma/getX4.jsp?evalid=4480&mf=3&mt=102