Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Endo, Tomohiro*; Noguchi, Akihiro*; Yamamoto, Akio*; Tada, Kenichi
Transactions of the American Nuclear Society, 124(1), p.184 - 187, 2021/06
This study confirmed that the sensitivity analysis of the alpha-eigenvalue can be carried even for non-neutron multiplication systems such as water-only systems. The preliminary results of nuclear data-induced uncertainties of alpha-eigenvalue were smaller than the differences between numerical and experimental results of alpha-eigenvalue. For further investigation, it is necessary to reconsider the experimental bias and the nuclear data-induced uncertainty in alpha-eigenvalue due to the thermal scattering law data of water.
Sakurai, Kiyoshi; Yamamoto, Toshihiro; Arakawa, Takuya*; Naito, Yoshitaka
Journal of Nuclear Science and Technology, 34(6), p.544 - 550, 1997/06
Times Cited Count：2 Percentile：23.01(Nuclear Science & Technology)no abstracts in English
Yamamoto, Toshihiro; Sakurai, Kiyoshi; Naito, Yoshitaka; Arakawa, Takuya*
Proc. of Topical Meeting on Criticality Safety Challenges in the Next Decade, 0, p.365 - 370, 1997/00
no abstracts in English
Iwamoto, Hiroki; Nishihara, Kenji; Yagi, Takahiro*; Pyeon, C. H.*
no journal, ,
no abstracts in English
Katano, Ryota; Tsujimoto, Kazufumi
no journal, ,
no abstracts in English
Yamaguchi, Hibiki*; Endo, Tomohiro*; Yamamoto, Akio*; Tada, Kenichi
no journal, ,
The numerical solution of the alpha eigenvalue is obtained by the inverse power iteration method. This method requires a large number of iterations to calculate the alpha eigenvalue. This study developed the acceleration method using the DMD method to reduce the calculation time of the alpha eigenvalue calculation and validated the developed method.
Katano, Ryota
no journal, ,
To investigate the condition where the subcriticality can be accurately measured by the pulsed neutron source experiment, we have calculated the average number of the generation of the detected neutron when defining the generation as a period during which a fission neutron causes a next fission. The results revealed that the linearity between the average number of the generation and time is important for the accurate subcriticality measurement.
Harada, Yoshinari*; Yamaguchi, Hibiki*; Endo, Tomohiro*; Yamamoto, Akio*; Tada, Kenichi
no journal, ,
The data assimilation using the prompt neutron decay constant was performed to reduce the uncertainty in nuclear calculations due to the thermal neutron scattering law (TSL) for light water. The uncertainty in the effective multiplication factor due to TSL for light water can be reduced using the bias factor method based on the deterministic sampling method when there is a strong correlation between nuclear properties through TSL for light water.
