Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Shinohara, Masanori; Ishitsuka, Etsuo; Shimazaki, Yosuke; Sawahata, Hiroaki
JAEA-Technology 2016-033, 65 Pages, 2017/01
JAEA-Technology-2016-033.pdf:11.14MB
To reduce the neutron exposure dose for workers during the replacement works of the startup neutron sources of the High Temperature Engineering Test Reactor, calculations of the exposure dose in case of temporary neutron shielding at the bottom of fuels handling machine were carried out by the PHITS code. As a result, it is clear that the dose equivalent rate due to neutron radiation can be reduced to about an order of magnitude by setting a temporary neutron shielding at the bottom of shielding cask for the fuel handling machine. In the actual replacement works, by setting temporary neutron shielding, it was achieved that the cumulative equivalent dose of the workers was reduced to 0.3 man mSv which is less than half of cumulative equivalent dose for the previous replacement works; 0.7 man mSv.
U Doppler Effect using various samples in FCA XVII-1Ando, Masaki; Okajima, Shigeaki; Oigawa, Hiroyuki
JAERI-Research 2001-017, 20 Pages, 2001/03
JAERI-Research-2001-017.pdf:0.82MB
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.
Sato, Satoshi; Takatsu, Hideyuki; *; Seki, Yasushi
J. Fusion Eng. Des., 30(3), p.1076 - 1080, 1996/12
no abstracts in English
Nakane, Yoshihiro; *; Sakamoto, Yukio; Yoshizawa, Nobuaki*; Nakao, Noriaki*; Ban, Shuichi*; Hirayama, Hideo*; *; Shin, Kazuo*; Nakamura, Takashi*
JAERI-Data/Code 96-029, 80 Pages, 1996/09
JAERI-Data-Code-96-029.pdf:2.34MB
no abstracts in English
*
JAERI-Data/Code 96-020, 45 Pages, 1996/06
JAERI-Data-Code-96-020.pdf:1.1MB
no abstracts in English
Asano, Yoshihiro; Sasamoto, Nobuo
IRPA9: 1996 International Congress on Radiation Protection, Proceedings, p.4_582 - 4_585, 1996/04
no abstracts in English
C in the fast critical facility FCAOkajima, 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
Oyama, Yukio; *
Purazuma, Kaku Yugo Gakkai-Shi, 72(1), p.83 - 90, 1996/00
no abstracts in English
; Sakamoto, Yukio; Tanaka, Shunichi; ; Fukahori, Tokio; ; Sasamoto, Nobuo; Tanaka, Susumu; Nakamura, Takashi*; Shin, Kazuo*; et al.
JAERI-Data/Code 94-012, 90 Pages, 1994/09
JAERI-Data-Code-94-012.pdf:2.26MB
no abstracts in English
Suzuki, Tomoo*; ; Tanaka, Shunichi;
JAERI-Data/Code 94-002, 22 Pages, 1994/07
JAERI-Data-Code-94-002.pdf:0.63MB
no abstracts in English
Asano, Yoshihiro; Sasamoto, Nobuo
Radiation Physics and Chemistry, 44(1-2), p.133 - 137, 1994/00
no abstracts in English
Asano, Yoshihiro; Sasamoto, Nobuo
Radiation Physics and Chemistry, 44(1-2), p.133 - 137, 1994/00
Times Cited Count：16 Percentile：78.48(Chemistry, Physical)no abstracts in English
Suzuki, Tomoo*; ; Tanaka, Shunichi;
JAERI-M 93-143, 82 Pages, 1993/07
no abstracts in English
Suzuki, Tomoo; ; Tanaka, Shunichi;
JAERI 1327, 110 Pages, 1992/05
no abstracts in English
Sasamoto, Nobuo; *
JAERI-M 90-229, 61 Pages, 1991/01
no abstracts in English
Sakamoto, Yukio; Naito, Yoshitaka
JAERI-M 90-203, 305 Pages, 1990/11
no abstracts in English
Yamano, Naoki*; Minami, Kazuyoshi*; ; Naito, Yoshitaka
JAERI 1316, 307 Pages, 1989/03
no abstracts in English
JAERI-M 85-116, 259 Pages, 1985/08
no abstracts in English
*
JAERI-M 85-017, 298 Pages, 1985/03
no abstracts in English
*; ; *
JAERI-M 84-244, 97 Pages, 1985/02
no abstracts in English
