Calculation of neutron and gamma-ray energy spectra for fusion reactor shield design: Comparison with experiment-II

Journal Article · Tue Jun 01 00:00:00 EDT 1982 · J. Fusion Energy; (United States)

DOI:https://doi.org/10.1007/BF01050934· OSTI ID:5207884

Santoro, R T; Alsmiller, R G; Barnes, J M; Chapman, G T

Measured and calculated neutron and gamma-ray energy spectra resulting from the transport of about 14 MeV neutrons through a 0.30-m-thick lithium hydride slab and through a 0.05-m-thick lead slab followed by 0.30 m of lithium hydride are compared. Also reported are comparisons of the measured and calculated neutron energy spectra behind an 0.80-m-thick assembly comprised of stainless steel type 304 and borated polyethylene. The spatial dependence of the gamma-ray energy deposition rate measured using thermoluminescent detectors is compared with calculated data. The calculated data obtained using two-dimensional radiation transport methods and ENDF/B-IV cross-section data are in good agreement for all of the experimental configurations. Calculated integral neutron energy spectra agree with the measured data within about 5 to about 20% depending on neutron energy for the LiH and Pb plus LiH assemblies. The gamma-ray spectra agree within 20% for these slabs. The measured and calculated neutron energy spectra behind the SS-304-borated polyethylene assembly agree within about 5% except at neutron energies below about 5 MeV where background radiation influences the measured spectra. The gamma-ray energy deposition rates as a function of depth agree within a factor of two at all detector locations.

• Research Organization: Oak Ridge National Lab., Oak Ridge, TN
• OSTI ID: 5207884
• Journal Information: J. Fusion Energy; (United States), Journal Name: J. Fusion Energy; (United States) Vol. 2:3; ISSN JFEND
• Country of Publication: United States
• Language: English

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ABSORPTION
ALKALI METAL COMPOUNDS
ALLOYS
BORATES
BORON COMPOUNDS
BREEDING BLANKETS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COMPUTER CODES
CORROSION RESISTANT ALLOYS
DATA
DOSIMETRY
E CODES
ELEMENTS
ENERGY ABSORPTION
ENERGY RANGE
GAMMA SPECTRA
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
LEAD
LITHIUM COMPOUNDS
LITHIUM HYDRIDES
MATERIALS
METALS
MEV RANGE
MEV RANGE 10-100
NEUTRAL-PARTICLE TRANSPORT
NEUTRON SPECTRA
NEUTRON TRANSPORT
NICKEL ALLOYS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PHOTON TRANSPORT
POLYETHYLENES
POLYMERS
POLYOLEFINS
RADIATION TRANSPORT
REACTOR COMPONENTS
SHIELDING MATERIALS
SPECTRA
STAINLESS STEEL-304
STAINLESS STEELS
STEELS
THERMOLUMINESCENT DOSIMETRY
THERMONUCLEAR REACTOR MATERIALS
TRANSPORT THEORY