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Title: Fast neutron fluence of yonggwang nuclear unit 1 reactor pressure vessel

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)
Authors:
; ; ;  [1] ;  [2]
  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)
Publication Date:
OSTI Identifier:
22039765
Resource Type:
Conference
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.
Publisher:
American Nuclear Society - ANS; La Grange Park (United States)
Research Org:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
Country of Publication:
United States
Language:
English
Subject:
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