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
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Related Subjects
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKANES
COHERENT SCATTERING
CROSS SECTIONS
DATA
DATA PROCESSING
DEUTERIUM
DIFFRACTION
DIFFUSION
ELASTIC SCATTERING
ELEMENTS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FLUIDS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
LIQUIDS
METHANE
MODERATORS
MONTE CARLO METHOD
NEUTRON DIFFRACTION
NONMETALS
NUCLEAR DATA COLLECTIONS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHONONS
PROCESSING
QUASI PARTICLES
SCATTERING
SOLIDS
STABLE ISOTOPES
THERMAL DIFFUSION
WATER
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKANES
COHERENT SCATTERING
CROSS SECTIONS
DATA
DATA PROCESSING
DEUTERIUM
DIFFRACTION
DIFFUSION
ELASTIC SCATTERING
ELEMENTS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FLUIDS
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
LIQUIDS
METHANE
MODERATORS
MONTE CARLO METHOD
NEUTRON DIFFRACTION
NONMETALS
NUCLEAR DATA COLLECTIONS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHONONS
PROCESSING
QUASI PARTICLES
SCATTERING
SOLIDS
STABLE ISOTOPES
THERMAL DIFFUSION
WATER