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Ando, Masaki; Okajima, Shigeaki; Oigawa, Hiroyuki
JAERI-Research 2001-017, 20 Pages, 2001/03
U Doppler effect measurements were carried out using 6 uranium samples with various composition or diameter varying self-shielding factors of U. Calculation accuracy of the standard analysis method for fast reactor cores at FCA was investigated.The Doppler effect were measured by the sample-heated and reactivity worth measurement method up to 800 degree in the FCA XVII-1 assembly, which simulated Na-cooled MOX fueled FBR. In the analysis, the Doppler effect was calculated using the effective cross sections obtained by the PEACO-X code. The calculated values based on the diffusion theory agreed well with the experiment for the U-metal and UO samples. The calculation underestimated the experiment from 10% to 30% for the UO samples containing BeO. This underestimation was improved by the use of the transport calculation. The calculation, however, underestimated about 20% for the sample whose background cross section is greater than 300 barns.
Okajima, Shigeaki; Oigawa, Hiroyuki; Ando, Masaki; Mukaiyama, Takehiko
Proc. of 9th Int. Symp. on Reactor Dosimetry, 0, p.172 - 179, 1996/00
no abstracts in English
Okuno, Hiroshi; Naito, Yoshitaka; *
Journal of Nuclear Science and Technology, 31(9), p.986 - 995, 1994/09
Times Cited Count:2 Percentile:28.05(Nuclear Science & Technology)no abstracts in English
Naito, Yoshitaka; Okuno, Hiroshi; *
JAERI-M 93-180, 66 Pages, 1993/09
no abstracts in English
Okajima, Shigeaki; Oigawa, Hiroyuki; Mukaiyama, Takehiko
JAERI-M 92-185, 42 Pages, 1992/11
no abstracts in English
Shindo, Ryuichi; Yamashita, Kiyonobu; Murata, Isao
JAERI-M 90-048, 225 Pages, 1990/03
no abstracts in English
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JAERI-M 85-163, 78 Pages, 1985/10
no abstracts in English
JAERI-M 85-034, 206 Pages, 1985/03
no abstracts in English
JAERI-M 5527, 20 Pages, 1974/01
no abstracts in English