"Hiroshi SAGARA","Nuclear nonproliferation and security research and education at Tokyo Tech","the international forum on peaceful use of nuclear energy, nuclear non-proliferation and nuclear security, gNuclear Non-proliferation and nuclear security in the post COVID-19 era",,"Japan Atomic Energy Agency",,,,2021,Dec. "Chi Young HAN,Hiroshi SAGARA,Yoshihisa MATSUMOTO,Satoshi CHIBA,Noriyosu HAYASHIZAKI,Masako IKEGAMI,Akira OMOTO,Tatsuya KATABUCHI,Koichiro TAKAO,Hiroshige KIKURA,Kenji TAKESHITA","Nuclear Regulation Human Resources Development Program in Tokyo Tech gThe Advanced Nuclear 3S Education and Training (ANSET)" (4) Implementation Status FY2020","The 42th Annual Meeting of INMM Japan Chapter","Proceedings of the 42th Annual Meeting of INMM Japan Chapter","Institute of Nuclear Materials Management (INMM) Japan Chapter",,,,2021,Nov. "Masatoshi Kawashima,Hiroshi SAGARA,Koji Morita","Development of a passive reactor shutdown device to prevent core damage accidents in fast reactors- Feasibility of the innovative device-idea and its nonproliferation features","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Kosuke Tanabe,Hiroshi Sagara","Proposal of neptunium-237 detection method based on photonuclear reaction","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Katsuyoshi TSUCHIYA,Hiroshi SAGARA,Chi Young HAN","Non-Destructive Assay Technology Using Passive Neutron Emission Tomography - Inhibiting Factor Sensitivity of Tomography Image -","The 42th Annual Meeting of INMM Japan Chapter","Proceedings of the 42th Annual Meeting of INMM Japan Chapter","Institute of Nuclear Materials Management (INMM) Japan Chapter",,,,2021,Nov. "Shiyotaro TERAYAMA,Chi Young HAN,Hiroshi SAGARA","The Effect of Nuclear Fuel Cycle Scenario on TRU Material Balance and Nuclear Nonproliferation","The 42th Annual Meeting of INMM Japan Chapter","Proceedings of the 42th Annual Meeting of INMM Japan Chapter","Institute of Nuclear Materials Management (INMM) Japan Chapter",,,,2021,Nov. "Natsumi Mitsuboshi,Hiroshi Sagara","Feasibility study on innovative small and medium modular reactor with inherent nuclear safety, security, and non-proliferation features (2) Assessment of Material attractiveness of Np as a target material in (U,Np)3Si2 fuel","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Kim Wei Chin,Rei Kimura,Hiroshi Sagara,Kosuke Tanabe","Proposal of numerical method to solve multi-nuclides system based on Photofission Reaction Ratio methodology","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Haruka Okazaki,Natsumi Mitsuboshi,Masatoshi Kawashima,Hiroshi Sagara","Improving nuclear safety and security performance of small and medium scale fast reactors by a passive reactor shutdown device (1) Research Plan","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "S Yamaguchi,Akito Ohizumi,Hiroshi SAGARA","Non-proliferation features of Accelerator-Driven System using TRU fuel with separation resistance of an actinide element","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Akito Oizumi,Takanori Sugawara,Hiroshi Sagara","Non-proliferation Features in Partitioning and Transmutation Cycle using Accelerator-driven System(2) Evaluation of Material Attractiveness of Uranium in ADS Fuel Assembly","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Yuichi KAGAYAMA,Hiroshi SAGARA,Chi Young HAN,Yoshiki KIMURA","Nuclear Forensics Signatures of Spent Nuclear Fuel from Light Water Reactors","The 42nd Annual Meeting of INMM Japan Chapter","Proceedings of the 42th Annual Meeting of INMM Japan Chapter","Institute of Nuclear Materials Management (INMM) Japan Chapter",,,,2021,Nov. "Hong Fatt Chong,Hiroshi Sagara,Natsumi Mitsuboshi","Design Study of U-TRU Fuel Loaded Gas Cooled Reactor Core for TRU Transmutation with Enhanced Safety and Security (I) U-Np Fuel","Proc. The 42nd Annual Meeting of INMM Japan Chapter",,,,,,2021,Nov. "Katsuyoshi TSUCHIYA,Hiroshi SAGARA,Chi Young HAN","Applicability of Passive Neutron Emission Tomography to Spent Nuclear Fuel Assemblies (2) The Effect of Water Rod on the Tomography","The AESJ 2021 Fall Meeting","Proceedings of the AESJ 2021 Fall Meeting","Atomic Energy Society of Japan (AESJ)",,,,2021,Sept. "Hiroshi SAGARA,Koji Morita,Masatoshi Kawashima,Tatemi Arima,Wei Liu,Yuji Arita,isamu sato","Development of a passive safety shutdown device to prevent core damage accidents in fast reactors (6) Specification of the device assembly design effective in the reactivity control by its material relocation","AESJ Fall Meeting 2021",,,,,,2021,Sept. "Koji Morita,Wei Liu,Ttemi Arima,Yuji Arita,isamu sato,Haruaki Matsuura,Yoshihiro Sekio,Hiroshi SAGARA,Masatoshi Kawashima","Development of a passive safety shutdown device to prevent core damage accidents in fast reactors (3) Overview of overall project progress through FY2020","AESJ Fall Meeting 2021",,,,,,2021,Sept. "Yuichi KAGAYAMA,Hiroshi SAGARA,Chi Young HAN,Yoshiki KIMURA","gNuclear Forensics Signatures of Spent Nuclear Fuel-Signatures for discriminating reactor and fuel types-","The AESJ 2021 Fall Meeting","Proceedings of the AESJ 2021 Fall Meeting","Atomic Energy Society of Japan (AESJ)",,,,2021,Sept. "Chi Young HAN,Hiroshi SAGARA,Tatsuya KATABUCHI,Hiroshige KIKURA,Yoshihisa MATSUMOTO,Kenji TAKESHITA,Koichiro TAKAO,Satoshi CHIBA","The Advanced Nuclear 3S Education and Training (ANSET) Program of Tokyo Tech: (2) 3S Exercises","The INMM & ESARDA Joint Annual Meeting","Proceedings of the INMM & ESARDA Joint Annual Meeting",,,,,2021,Aug. "Hiroshi SAGARA,Chi Young HAN,Satoshi CHIBA,Yoshihisa MATSUMOTO,Noriyosu HAYASHIZAKI,Masako IKEGAMI,Akira OMOTO,Kenji TAKESHITA,Tatsuya KATABUCHI,Hiroshige KIKURA,Koichiro TAKAO","The Advanced Nuclear 3S Education and Training (ANSET) Program of Tokyo Tech: (1) Overview","The INMM & ESARDA Joint Annual Meeting","Proceedings of the INMM & ESARDA Joint Annual Meeting",,,,,2021,Aug. "Kim Wei Chin,Hiroshi SAGARA,Jun-ichi HORI,Yoshiyuki TAKAHASHI,Chi Young HAN","System Design of Photofission Reaction Ratio with High-energy Bremsstrahlung Photons for Nuclear Security","The INMM & ESARDA Joint Annual Meeting","Proceedings of the INMM & ESARDA Joint Annual Meeting",,,,,2021,Aug. "Akito Oizumi,Hiroshi Sagara","Material Attractiveness Evaluation Of Actinides In Pyroprocessing Facility For Partitioning And Transmutation Cycle","Proc. INMM 62nd Annual Meeting",,,,,,2021,Aug. "Natsumi Mitsuboshi,Hiroshi Sagara","Feasibility study on small and medium modular light water reactors with inherent nuclear safety and security features using U 3 Si 2 fuel and MA","INMM/ESARDA Joint Annual Meeting 2021","Proceedings of INMM/ESARDA Joint Annual Meeting 2021",,,,,2021,Aug. "Akito Oizumi,Hiroshi Sagara","Material Attractiveness Evaluation of Actinides in Pyroprocessing Facility for Partitioning and Transmutation Cycle","INMM&ESARDA Joint Annual Meeting","Proceedings of INMM&ESARDA Joint Annual Meeting",,,,,2021,Aug. "Takaya Tokuda,Shigeki Shiba,Hiroshi Sagara","Development of Non-destructive Assay Technique using Passive Neutron Emission Tomography","INMM&ESARDA Joint Annual Meeting","Proceedings of INMM&ESARDA Joint Annual Meeting",,,,,2021,Aug. "Shigeki Shiba,Hiroshi Sagara","Iterative Reconstruction Algorithm Comparison Using Poisson Noise Distributed Sinogram Data in Passive Gamma Emission Tomography",,"J. NUCL. SCI. TECHNOL.",,"Vol. 150","Issue 6","p. 659-666",2021,June "Natsumi Mitsuboshi,Hiroshi Sagara","Effects of U3Si2 fuel and minor actinide doping on fundamental neutronics, nuclear safety, and security of small and medium PWRs in comparison to conventional UO2 fuel",,"Annals of Nuclear Energy",,"Vol. 153",,"p. 108078",2021,Apr. "Hidekazu Asano,Tomofumi Sakuragi,Ryo Hamada,Chi Young Han,Masahiko Nakase,Tatsuro Matsumura,Go Chiba,Hiroshi Sagara,Kenji Takeshita","Œ΄Žq—ΝƒVƒXƒeƒ€Œ€‹†ŠJ”­Ž–‹Ζ2020”N•ρ‘",,"Œ΄Žq—ΝƒVƒXƒeƒ€Œ€‹†ŠJ”­Ž–‹Ζi•ϊŽΛ«”pŠό•¨ŒΈ—eE—LŠQ“x’αŒΈ‹ZpŒ€‹†ŠJ”­j2020”N•ρ‘",,,,,2021,Apr. "Kim Wei Chin,Hiroshi SAGARA,Chi Young HAN","Application of Photofission Reaction to Identify High-Enriched Uranium by Bremsstrahlung Photons",,"Annals of Nuclear Energy",,"Vol. 158",,"p. 1-7",2021,Apr. "Hidekazu ASANO,Tomofumi SAKURAGI,Ryo HAMADA,Chi Young HAN,Masahiko NAKASE,Tatsuro MATSUMURA,Go CHIBA,Hiroshi SAGARA,Kenji TAKESHITA","Study on Advanced Nuclear Energy System Based on the Environmental Impact of Radioactive Waste Disposal (1) Environmental Load and Nuclear Fuel Cycle Conditions in Waste Disposal","The AESJ 2021 Annual Meeting","Proceedings of the AESJ 2021 Annual Meeting","Atomic Energy Society of Japan (AESJ)",,,,2021,Mar. "Sho NAKAGUKI,,Hiroshi SAGARA,Chi Young HAN,Taketeru NAGATANI","Applicability of DDSI Assay Technique for Pu-240 Effective Mass Quantification in Pu Wastes Including Light-Element Impurities","The AESJ 2021 Annual Meeting","Proceedings of the AESJ 2021 Annual Meeting","Atomic Energy Society of Japan (AESJ)",,,,2021,Mar. "Β–φ—Α,Hiroshi SAGARA,Sunil S. Chirayath","—n—Z‰–‚‘¬˜F‚π—p‚’‚½ThF4-UF4•½t”R—ΏƒTƒCƒNƒ‹‚ΜŠj•sŠgŽU«‚ΙŠΦ‚·‚ιŒ€‹†","“ϊ–{Œ΄Žq—ΝŠw‰ο2021”Nt‚Μ”N‰ο","“ϊ–{Œ΄Žq—ΝŠw‰ο2021”Nt‚Μ”N‰ο—\eW, 2G12",,,,,2021,Mar. "Chi Young HAN,Hiroshi SAGARA,Hidekazu ASANO","Study on Advanced Nuclear Energy System Based on the Environmental Impact of Radioactive Waste Disposal (3) Applicability of NFCSS to Material Balance Evaluation of Nuclear Fuel Cycle","The AESJ 2021 Annual Meeting","Proceedings of the AESJ 2021 Annual Meeting","Atomic Energy Society of Japan (AESJ)",,,,2021,Mar. "Shigeki Shiba,Hiroshi Sagara","Passive gamma emission tomography with ordered subset expectation maximization method",,"Annals of Nuclear Energy",,"Vol. 150","# 107823","p. 107",2021,Jan.