Monte Carlo calculations of neutron and gamma-ray energy spectra for fusion reactor shield design: comparison with experiment
Neutron and gamma-ray energy spectra resulting from the interactions of about14 MeV neutrons in laminated slabs of stainless steel type-304 and borated polyethylene have been calculated using the Monte Carlo code MCNP. The calculated spectra are compared with measured data as a function of slab thickness and material composition and as a function of detector location behind the slabs. Comparisons of the differential energy spectra are made for neutrons with energies above 850 keV and for gamma rays with energies above 750 keV. The measured neutron spectra and those calculated using Monte Carlo methods agree within 5% to 50% depending on the slab thickness and composition and neutron energy. The agreement between the measured and calculated gamma-ray energy spectra are also within this range. The MCNP data are also in favorable agreement with attenuated data calculated previously by discrete ordinates transport methods and the Monte Carlo code SAMCE.
- Research Organization:
- Oak Ridge National Lab., Oak Ridge, TN 37830
- OSTI ID:
- 6243993
- Report Number(s):
- CONF-830406-
- Journal Information:
- Nucl. Technol./Fusion; (United States), Journal Name: Nucl. Technol./Fusion; (United States) Vol. 4:2; ISSN NTFUD
- Country of Publication:
- United States
- Language:
- English
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ALLOYS
BARYON REACTIONS
BARYONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COMPUTER CODES
CORROSION RESISTANT ALLOYS
DESIGN
DISCRETE ORDINATE METHOD
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
FERMIONS
GAMMA RADIATION
GAMMA SPECTRA
HADRON REACTIONS
HADRONS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
IONIZING RADIATIONS
IRON ALLOYS
IRON BASE ALLOYS
KEV RANGE
KEV RANGE 100-1000
M CODES
MATERIALS
MEV RANGE
MEV RANGE 10-100
MONTE CARLO METHOD
NEUTRAL-PARTICLE TRANSPORT
NEUTRON REACTIONS
NEUTRON SPECTRA
NEUTRON TRANSPORT
NEUTRONS
NICKEL ALLOYS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYETHYLENES
POLYMERS
POLYOLEFINS
RADIATION TRANSPORT
RADIATIONS
SHIELDING MATERIALS
SHIELDS
SPECTRA
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
THERMONUCLEAR REACTOR MATERIALS
THERMONUCLEAR REACTORS