研究者詳細 - 山本　章夫

論文 - 山本　章夫

分割表示 446 件中 161 - 180 件目／全件表示 >>

Estimation of modeling approximation error of core analysis using the surrogate model with kriging

Hanai T., Endo T., Kodama Y., Ohoka Y., Yamamoto A.

Transactions of the American Nuclear Society 117 巻頁： 1269 - 1272 2017年

Evaluation of the n/γ discrimination performance of the neutron detector with eu doped TRUST-LiCaAlF6

Maeno K., Endo T., Yamamoto A.

2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings 2017年

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings

The n/γ discrimination performance of the prototype neutron detector using Eu doped TRUST-LiCaAlF6 is quantitatively investigated, in order to confirm its applicability to the subcriticality monitoring in the decommissioning works at Fukushima Daiichi Nuclear Power Plant units 1-3, especially focusing on removal of fuel debris. In this paper, the experimental results of pulse-height distribution measurement using 252Cf at the Nagoya University Cobalt 60 irradiation facility are shown. Additionally, in order to investigate the applicability to the reactor noise analysis, preliminary experimental results of the Feynman-α method are also shown.

Scopus

Effective use of engineering reactor simulator for education of nuclear safety

Yamamoto A., Endo T.

2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings 2017年

Effective use of a reactor simulator to lecture nuclear safety for undergraduate/master's course students majoring nuclear engineering is discussed. Various scenarios from normal operating to severe accident conditions are used for an exercise of a few days' course. Through discussions on plant behaviors of various scenarios within a small group and among class members, participants can understand physics behind responses of a nuclear power plant.

Scopus

Application of the genesis code to the Kobayashi 3D benchmark problem

Yamamoto A., Giho A., Endo T.

Transactions of the American Nuclear Society 117 巻頁： 1403 - 1406 2017年

Development of dynamic probabilistic risk assessment model for PWR using simplified plant simulation method

Otsuki S., Endo T., Yamamoto A.

2017 International Congress on Advances in Nuclear Power Plants, ICAPP 2017 - A New Paradigm in Nuclear Power Safety, Proceedings 2017年

The CMMC (Continuous Markov Monte Carlo) coupling method is proposed for quantifying accident scenarios that have time-dependence in accident progression and inter-dependence of individual events. In order to analyze large number of samples within realistic computing time, we developed a simplified accident progression analysis model and coupled the simplified model to the CMMC method. Large number of samples for station black out in PWR were analyzed using the random sampling method based on the CMMC method considering uncertainty of decay heat from a core. As a result, uncertainties of event initiation time and FPs release ratio to the atmosphere are estimated.

Scopus

GENESIS - a Transport Solver in Three-Dimensional Heterogeneous Geometry based on the Leaf Method 査読有り

A. Yamamoto,A. Giho,Y. Kato,T. Endo

Proc. PHYSOR2016 2016年4月

Statistical Error Estimation of the Feynman-α Method using the Bootstrap Method 査読有り

T. Endo,A. Yamamoto,T. Yagi,C. H. Pyeon

J. Nucl. Sci. Technol. 53 巻頁： 1447-1453 2016年

Discontinuity Factors for Simplified P3 Theory 査読有り

A. Yamamoto,T. Sakamoto,T. Endo

Nucl. Sci. Eng. 183 巻頁： 39-51 2016年

Bias Factor Method Using Random Sampling Technique 査読有り

T. Endo,A. Yamamoto,T. Watanabe

J. Nucl. Sci. Technol. 53 巻頁： 1491-1501 2016年

Cross Section Adjustment Methods based on Minimum Variance Unbiased Estimation 査読有り

K. Yokoyama,A. Yamamoto

J. Nucl. Sci. Technol. 53 巻頁： 1622-1638 2016年

An efficient execution of Monte Carlo simulation based on delta-tracking method using GPUs 査読有り

T. Okubo,A. Yamamoto,E. Endo

J. Nucl. Sci. Technol. 53 巻頁： 1-9 2016年

Reduction of MOC Discretization Errors Through a Minimization of Source Ratio Variances 査読有り

M. Tabuchi,A. Yamamoto,E. Endo,M. Tatsumi

J. Nucl. Sci. Technol. 53 巻頁： 1858-1869 2016年

A CMFD Acceleration Method for SP3 Advanced Nodal Method 査読有り

A. Yamamoto,T. Sakamoto,T. Endo

Nucl. Sci. Eng. 184 巻頁： 168-173 2016年

Prediction on Underestimation of Statistical Uncertainty in Monte Carlo Eigenvalue Calculation for Two-Dimensional Heterogeneous Color Set Geometry 査読有り

K. Hayashi,T. Endo,A. Yamamoto

Trans. Am. Nucl. Soc. 115 巻頁： 1213-1216 2016年

Uncertainty Quantification of Activation Due to Cross Section Data in Neutron Shielding Calculation 査読有り

K. Yokoi,T. Endo,A. Yamamoto,R. Mizuno,Y. Kimura

Trans. Am. Nucl. Soc. 115 巻頁： 1085-1087 2016年

Uncertainty Quantification of Spatial Correction Factor for Sjöstrand Method due to Cross-Section Data 査読有り

T. Kimura,T. Endo,A. Yamamoto

Trans. Am. Nucl. Soc. 115 巻頁： 1081-1084 2016年

Application of Simplified Pn Approximation to Angular Distribution of Neutron Source in MOC Calculations

A. Yamamoto,Akinori Giho,T. Endo

Trans. Am. Nucl. Soc. 115 巻頁： 1241-1244 2016年

Comparison of Fuel Loading Pattern Optimization Results using Exhaustive Search for Fresh Fuels and Local Search for Burned Fuels 査読有り

S. Ishiguro,T. Endo,A. Yamamoto

Trans. Am. Nucl. Soc. 115 巻頁： 1265-1267 2016年

Comparison of the Numerical Stability between CMFD and GCMR with Stabilization Techniques 査読有り

Akinori Giho,A. Yamamoto

Trans. Am. Nucl. Soc. 115 巻頁： 1245-1248 2016年

Development of a Simplified Estimation Method on Severe Accident Progression in PWR for Education 査読有り

S. Otsuki,T. Endo,A. Yamamoto

Trans. Am. Nucl. Soc. 113 巻頁： 855-858 2015年11月

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