Transmitted spectra of single slabs driven by (deuterium-tritium) neutrons at the LOTUS facility

Journal Article · Mon May 01 00:00:00 EDT 1989 · Fusion Technology; (USA)

OSTI ID:5588516

Kumar, A ^[1]; Leo, W R ^[2]; Green, L ^[3]; Woodruff, G L ^[4]

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1. California Univ., Los Angeles, CA (USA)
2. OFAC, Geneva (CH)
3. Westinghouse Electric Corp., Pittsburgh, PA (USA)
4. Washington Univ., Seattle, WA (USA)

Transmitted neutron spectra from slabs of beryllium, lead, stainless steel, ThO/sub 2/, Li/sub 2/CO/sub 3/, and graphite, driven by a Haefely neutron generator operated at low intensity, were measured with a 2- x 2-in. NE-213 detector at the LOTUS facility. These materials investigated under our fusion blanket neutronics program. In this paper, these experiments are analyzed with the two-dimensional code DOT3.5 and the three-dimensional code MCNP. The discrepancies on spectral integrals between 15 and 1 MeV are within 10 to 15% for empty cavity, 15-cm-thick lead, 18-cm beryllium, and 25-cm graphite slabs for both three-dimensional (MCNP) and two-dimensional (DOT) computations as compared to those obtained from the measured spectra; much larger differences are found for 6.,2-cm-thick stainless steel, 15-cm Li/sub 2/CO/sub 3/, and 27.7-cm ThO/sub 2/ slabs. Also, there is a considerable disagreement over pointwise spectra for a number of slabs.

• OSTI ID: 5588516
• Journal Information: Fusion Technology; (USA), Vol. 15:3; ISSN 0748-1896
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
22 GENERAL STUDIES OF NUCLEAR REACTORS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
BERYLLIUM
NEUTRON SPECTRA
BREEDING BLANKETS
MATERIALS TESTING
COMPUTER CODES
D CODES
M CODES
GRAPHITE
HYBRID REACTORS
NEUTRONIC DAMAGE FUNCTIONS
LEAD
LITHIUM CARBONATES
STAINLESS STEELS
THORIUM OXIDES
DEUTERIUM
LOTUS FACILITY
NEUTRON TRANSPORT
SLABS
THREE-DIMENSIONAL CALCULATIONS
TRITIUM
TWO-DIMENSIONAL CALCULATIONS
ACTINIDE COMPOUNDS
ALKALI METAL COMPOUNDS
ALKALINE EARTH METALS
ALLOYS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
ELEMENTAL MINERALS
ELEMENTS
FUNCTIONS
HIGH ALLOY STEELS
HYDROGEN ISOTOPES
IRON ALLOYS
IRON BASE ALLOYS
ISOTOPES
LIGHT NUCLEI
LITHIUM COMPOUNDS
METALS
MINERALS
NEUTRAL-PARTICLE TRANSPORT
NONMETALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXIDES
OXYGEN COMPOUNDS
RADIATION TRANSPORT
RADIOISOTOPES
REACTOR COMPONENTS
SPECTRA
STABLE ISOTOPES
STEELS
TESTING
THORIUM COMPOUNDS
YEARS LIVING RADIOISOTOPES
700201* - Fusion Power Plant Technology- Blanket Engineering
700209 - Fusion Power Plant Technology- Component Development & Materials Testing
220400 - Nuclear Reactor Technology- Control Systems
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)