GROUPR Thermal Quantities 

Compute the Maxwellianaveraged thermal cross sections and
resonance integrals for U235 from ENDF/BV using GROUPR
and compare the results to the one from BROADR. Hint: Start with Exercise 5, and then do two GROUPR runs, one with IWT=4 set to represent a 0.0253eV Maxwellian up to several eV, and one with IWT=3 for the resonance integrals. You only have to run fission and capture MT values. Use 0.5 eV to 10 MeV for the resonance integrals. 
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27 March 2000  T2 Nuclear Information Service  ryxm@lanl.gov 