Neutronics analysis on helium production control in stainless steel by neutron spectral tailoring in the JMTR
Creators
- 1. Japan Atomic Energy Research Inst., Oarai, Ibaraki (Japan). Oarai Research Establishment
Description
With regard to development of neutron spectral tailoring irradiation technique in the JMTR, helium production control range in 304 stainless steel was calculated under constant neutron fluence represented in dpa. Using a technique for enhancing helium production by 8Ni(n,γ)59Ni(n,α)56Fe reaction, following three irradiation tests were surveyed to estimate helium production control range; (1) thermal neutron cut-off irradiation with cadmium absorber. (2) normal irradiation without considering spectral tailoring, (3) thermal neutron trapping irradiation with graphite moderator. For 200 day irradiation test, helium production in 304 stainless steel is able to be controlled within 1.4-24 appm (2 dpa, He-to-dpa ratio within 0.7-12). Based on the calculation results, it was found that the improved irradiation tests to obtain irradiation data with different helium production is feasible in the JMTR for studies on helium effects in nickel-bearing materials. (author)
Availability note (English)
MF available from INIS under the Report Number.
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Additional details
Publishing Information
- Imprint Pagination
- 31 p.
- Report number
- JAERI-Tech--95-023
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 26067227
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- ALPHA PARTICLES; ATOMIC DISPLACEMENTS; CADMIUM; CONTROL; GRAPHITE; INTERSTITIAL HELIUM GENERATION; IRON 56; IRRADIATION PROCEDURES; JMTR REACTOR; NEUTRON REACTIONS; NEUTRON SPECTRA; NICKEL 59; STAINLESS STEEL-304; THERMAL NEUTRONS
- Descriptors DEC
- ALLOYS; AUSTENITIC STEELS; BARYON REACTIONS; BARYONS; BETA DECAY RADIOISOTOPES; CARBON; CARBON ADDITIONS; CHARGED PARTICLES; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTARY PARTICLES; ELEMENTS; ENRICHED URANIUM REACTORS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HELIUM IONS; HIGH ALLOY STEELS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; IONS; IRON ALLOYS; IRON BASE ALLOYS; IRON ISOTOPES; IRRADIATION REACTORS; ISOTOPES; MATERIALS; MATERIALS TESTING REACTORS; METALS; NEUTRONS; NICKEL ALLOYS; NICKEL ISOTOPES; NONMETALS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; PHYSICAL RADIATION EFFECTS; RADIATION EFFECTS; RADIATIONS; RADIOISOTOPES; REACTORS; RESEARCH AND TEST REACTORS; RESEARCH REACTORS; SPECTRA; STABLE ISOTOPES; STAINLESS STEELS; STEEL-CR19NI10; STEELS; TANK TYPE REACTORS; TEST FACILITIES; TEST REACTORS; TRANSITION ELEMENT ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS; YEARS LIVING RADIOISOTOPES