Phenomenological model for particle production from the collisions of nucleons and pions with fissile elements at medium energies

Technical Report · Sun Mar 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/6633244· OSTI ID:6633244

Alsmiller, F. S.; Alsmiller, Jr., R. G.; Gabriel, T. A.; Lillie, R. A.; Barish, J.

A fission channel has been added to the intranuclear-cascade-evaporation model of nuclear reactions so that this model may be used to obtain the differential particle production data that are needed to study the transport of medium-energy nucleons and pions through fissionable material. The earlier work of Hahn and Bertini on the incorporation of fission-evaporation competition into the intranuclear-cascade-evaporation model has been retained, and the statistical model of fission has been utilized to predict particle production from the fission process. Approximate empirically derived kinetic energies and deformation energies are used in the statistical model. The calculated number of emitted neutrons and residual nuclei distributions are in reasonable agreement with experimental data, but the number of emitted neutrons at the higher incident nucleon energies (approx. > 500 MeV) are sensitive to the level density parameter used. 9 figures, 2 tables.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6633244
• Report Number(s): ORNL/TM-7528
• Country of Publication: United States
• Language: English

Related Subjects

652016* -- Nuclear Properties & Reactions
A=220 & above
Theoretical-- Spontaneous & Induced Fission-- (-1987)
654001 -- Radiation & Shielding Physics-- Radiation Physics
Shielding Calculations & Experiments
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
CHARGED-PARTICLE REACTIONS
CHARGED-PARTICLE TRANSPORT
DATA
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EVAPORATION MODEL
FERMIONS
FISSION
FISSIONABLE MATERIALS
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
INFORMATION
KINETIC ENERGY
MASS SPECTRA
MATERIALS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
MULTIPLICITY
NEUTRONS
NUCLEAR CASCADES
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
NUMERICAL DATA
PROTON REACTIONS
PROTONS
RADIATION TRANSPORT
RECOILS
SPALLATION
SPALLATION FRAGMENTS
SPECTRA
STATISTICAL MODELS
TARGETS
THEORETICAL DATA
TRANSMISSION
URANIUM 235 TARGET
URANIUM 238 TARGET