Fast neutron fluence of yonggwang nuclear unit 1 reactor pressure vessel

Conference · Sat Jul 01 00:00:00 EDT 2006

OSTI ID:22039765

Yoo, C; Km, B; Chang, K; Leeand, S ^[1]; Park, J ^[2]

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1. Korea Atomic Energy Research Inst., 150 Dukjin-dong, Yuseung-gu, Daejeon 305-353 (Korea, Republic of)
2. Chungnam National Univ., 220 Gung-dong, Yuseung-gu, Daejeon 305-764 (Korea, Republic of)

The Code of Federal Regulations, Title 10, Part 50, Appendix H, requires that the neutron dosimetry be present to monitor the reactor vessel throughout plant life. The Ex-Vessel Neutron Dosimetry System has been installed for Yonggwang Nuclear Unit 1 after complete withdrawal of all six in-vessel surveillance capsules. This system has been installed in the reactor cavity annulus in order to measure the fast neutron spectrum coming out through the reactor pressure vessel. Cycle specific neutron transport calculations were performed to obtain the energy dependent neutron flux throughout the reactor geometry including dosimetry positions. Comparisons between calculations and measurements were performed for the reaction rates of each dosimetry sensors and results show good agreements. (authors)

• Research Organization: American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 22039765
• Resource Relation: Conference: PHYSOR-2006: American Nuclear Society's Topical Meeting on Reactor Physics - Advances in Nuclear Analysis and Simulation, Vancouver, BC (Canada), 10-14 Sep 2006; Other Information: Country of input: France; 6 refs.
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CAPSULES
CAVITIES
COMPARATIVE EVALUATIONS
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FAST NEUTRONS
NEUTRON DOSIMETRY
NEUTRON FLUENCE
NEUTRON FLUX
NEUTRON SPECTRA
NEUTRON TRANSPORT THEORY
PRESSURE VESSELS
REACTION KINETICS
REACTOR VESSELS
YONGGWANG-1 REACTOR