Transmitted spectra of single slabs driven by (deuterium-tritium) neutrons at the LOTUS facility
Creators
- 1. California Univ., Los Angeles, CA (USA)
- 2. OFAC, Geneva (Switzerland)
- 3. Westinghouse Electric Corp., Pittsburgh, PA (USA)
- 4. Washington Univ., Seattle, WA (USA)
Description
Transmitted neutron spectra from slabs of beryllium, lead, stainless steel, ThO2, Li2CO3, 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 Li2CO3, and 27.7-cm ThO2 slabs. Also, there is a considerable disagreement over pointwise spectra for a number of slabs
Additional details
Publishing Information
- Journal Title
- Fusion Technology
- Journal Volume
- 15
- Journal Issue
- 3
- Series
- Fusion Technol.
- Journal Page Range
- 1430-1450
- ISSN
- 0748-1896
- CODEN
- FUSTE
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21012175
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Descriptors DEI
- BERYLLIUM; BREEDING BLANKETS; COMPUTER CODES; D CODES; DEUTERIUM; GRAPHITE; HYBRID REACTORS; LEAD; LITHIUM CARBONATES; LOTUS FACILITY; M CODES; MATERIALS TESTING; NEUTRON SPECTRA; NEUTRON TRANSPORT; NEUTRONIC DAMAGE FUNCTIONS; SLABS; STAINLESS STEELS; THORIUM OXIDES; THREE-DIMENSIONAL CALCULATIONS; TRITIUM; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- ACTINIDE COMPOUNDS; ALKALI METAL COMPOUNDS; ALKALINE EARTH METALS; ALLOYS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON; CARBON ADDITIONS; CARBON COMPOUNDS; CARBONATES; CHALCOGENIDES; ELEMENTS; HIGH ALLOY STEELS; HYDROGEN ISOTOPES; IRON ALLOYS; IRON BASE ALLOYS; ISOTOPES; LIGHT NUCLEI; LITHIUM COMPOUNDS; METALS; NEUTRAL-PARTICLE TRANSPORT; NONMETALS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; OXIDES; OXYGEN COMPOUNDS; RADIATION TRANSPORT; RADIOISOTOPES; SPECTRA; STABLE ISOTOPES; STEELS; TESTING; THORIUM COMPOUNDS; YEARS LIVING RADIOISOTOPES