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U.S. Department of Energy
Office of Scientific and Technical Information

Cold moderator scattering kernels

Conference ·
OSTI ID:6734448
New thermal scattering law files in ENDF format have been developed for solid methane, liquid methane, liquid ortho and para hydrogen, and liquid ortho and para deuterium using up-to-date models that include such effects as incoherent elastic scattering in the solid, diffusion and hindered vibration and rotations in the liquids, and spin correlations for the hydrogen and deuterium. These files were generated with the new LEAPR module of the Njoy Nuclear Data Processing System, and other modules of this system were used to produce cross sections for these moderators in the correct format for the continuous-energy Monte Carlo code MCNP being used for cold moderator design calculations at the Los Alamos Neutron Scattering Center LANSCE. 19 refs., 10 figs.
Research Organization:
Los Alamos National Lab., NM (USA)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
6734448
Report Number(s):
LA-UR-88-3358; CONF-8810182-4; ON: DE89002038
Country of Publication:
United States
Language:
English