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Effect of U-238 and U-235 cross sections on nuclear characteristics of fast and thermal reactors

Abstract

Benchmark calculation has been made for fast and thermal reactors by using ENDF/B-VI release 2(ENDF/B-VI.2) and JENDL-3.2 nuclear data. Effective multiplication factors (k{sub eff}s) calculated for fast reactors calculated with ENDF/B-VI.2 becomes about 1% larger than the results with JENDL-3.2. The difference in k{sub eff} is caused mainly from the difference in inelastic scattering cross section of U-238. In all thermal benchmark cores, ENDF/B-VI.2 gives smaller multiplication factors than JENDL-3.2. In U-235 cores, the difference is about 0.3%dk and it becomes about 0.6% in TCA U cores. The difference in U-238 data is also important in thermal reactors, while there are found 0.1-0.3% different v values of U isotopes in thermal energy between ENDF/B-VI.2 and JENDL-3.2. (author)
Authors:
Akie, Hiroshi; Takano, Hideki; [1]  Kaneko, Kunio
  1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Publication Date:
Mar 01, 1997
Product Type:
Conference
Report Number:
JAERI-Conf-97-004; CONF-9604220-; INDC(JPN)-178/U
Reference Number:
SCA: 220100; PA: JPN-97:009074; EDB-97:143924; SN: 97001866977
Resource Relation:
Conference: ISND-1: 1. internet symposium on nuclear data, Tokai (Japan), 8 Apr - 15 Jun 1996; Other Information: PBD: Mar 1997; Related Information: Is Part Of Proceedings of the first internet symposium on nuclear data; Fukahori, Tokio; Iwamoto, Osamu; Nakagawa, Tsuneo [eds.] [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment]; PB: 285 p.
Subject:
22 NUCLEAR REACTOR TECHNOLOGY; URANIUM; CROSS SECTIONS; COMPARATIVE EVALUATIONS; URANIUM 235; URANIUM 238; BENCHMARKS; MULTIPLICATION FACTORS; NUCLEAR DATA COLLECTIONS; FAST REACTORS; THERMAL REACTORS
OSTI ID:
544660
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE97758661; TRN: JP9709074
Availability:
OSTI as DE97758661
Submitting Site:
JPN
Size:
pp. 30-36
Announcement Date:
Dec 08, 1997

Citation Formats

Akie, Hiroshi, Takano, Hideki, and Kaneko, Kunio. Effect of U-238 and U-235 cross sections on nuclear characteristics of fast and thermal reactors. Japan: N. p., 1997. Web.
Akie, Hiroshi, Takano, Hideki, & Kaneko, Kunio. Effect of U-238 and U-235 cross sections on nuclear characteristics of fast and thermal reactors. Japan.
Akie, Hiroshi, Takano, Hideki, and Kaneko, Kunio. 1997. "Effect of U-238 and U-235 cross sections on nuclear characteristics of fast and thermal reactors." Japan.
@misc{etde_544660,
title = {Effect of U-238 and U-235 cross sections on nuclear characteristics of fast and thermal reactors}
author = {Akie, Hiroshi, Takano, Hideki, and Kaneko, Kunio}
abstractNote = {Benchmark calculation has been made for fast and thermal reactors by using ENDF/B-VI release 2(ENDF/B-VI.2) and JENDL-3.2 nuclear data. Effective multiplication factors (k{sub eff}s) calculated for fast reactors calculated with ENDF/B-VI.2 becomes about 1% larger than the results with JENDL-3.2. The difference in k{sub eff} is caused mainly from the difference in inelastic scattering cross section of U-238. In all thermal benchmark cores, ENDF/B-VI.2 gives smaller multiplication factors than JENDL-3.2. In U-235 cores, the difference is about 0.3%dk and it becomes about 0.6% in TCA U cores. The difference in U-238 data is also important in thermal reactors, while there are found 0.1-0.3% different v values of U isotopes in thermal energy between ENDF/B-VI.2 and JENDL-3.2. (author)}
place = {Japan}
year = {1997}
month = {Mar}
}