Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Tomoharu Hashimoto"'
Publikováno v:
Volume 2: Nuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors.
All of the boiling water reactors in Japan were required to install filtered containment venting system (FCVS) for restart after the accident of Fukushima Daiichi Nuclear Power Plant. FCVS is composed of alkaline water and a metal fiber filter (MFF).
Autor:
Hironobu Iwanami, Tomoharu Hashimoto, Tanaka Motoi, Satoshi Mizuno, Takashi Uemura, Ryuichi Tayama
Publikováno v:
Volume 2: Nuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors.
A dose assessment methodology was developed for IS-LOCA (Interface System – Loss of Coolant Accident) event, which is one of the design basis accidents in BWR plants, and a dose assessment at site boundary was implemented for the accident scenario
Publikováno v:
Volume 2: Nuclear Policy; Nuclear Safety, Security, and Cyber Security; Operating Plant Experience; Probabilistic Risk Assessments; SMR and Advanced Reactors.
In the design of nuclear power plants, it is demanded to quickly and calculate gamma ray scattering line (streaming) from the penetrating portion provided in the shielding such as electrical cables and ducts. However, when conducting gamma-ray stream
Autor:
Ming Leang Ang, Carmen Niculae, Neil Harman, Tomoharu Hashimoto, Elizabeth Grindon, Hironobu Iwanami
Publikováno v:
Volume 6A: Thermal-Hydraulics and Safety Analyses.
A full scope Probabilistic Safety Assessment (PSA) was provided as an integral part of the safety case for the UK ABWR Generic Design Assessment (GDA) and this included a Level 3 PSA. The main objectives of the Level 3 PSA for GDA are to provide a de
Publikováno v:
Progress in Nuclear Science and Technology. 4:695-698
Hitachi-GE Nuclear Energy, Ltd. has developed the Dose rate meter called "D-phod (Detector for photon dose)" using fiber optics as a radiation sensor to figure out the dose rate of Fukushima area which is contaminated by radioactive materials. D-phod
Publikováno v:
Progress in Nuclear Science and Technology. 4:27-31
The Japanese government plans to conduct decontamination tasks in radioactively contaminated areas. For such a situation, we developed a system that evaluates radiation dose rates in a wide radioactively contaminated area by utilizing our radiation d
Publikováno v:
Progress in Nuclear Science and Technology. 1:40-43
A simple but reliable radiation shielding program BULK-II wad developed for proton and carbon accelerator facilities at incident energies of 50 - 400 MeV/nucleon. Particle-therapy facility design is the main target of BULK-II. Neutron and gamma doses
Publikováno v:
Japanese Journal of Health Physics. 39:231-237
An investigation on the performance of various dosimeters to be used for individual monitoring at the O-arai Engineering Center (OEC) was executed. The present TLD system was compared with recently produced dosimeters, such as OSL, Glass dosimeter, E
Publikováno v:
Volume 2: Plant Systems, Structures, and Components; Safety and Security; Next Generation Systems; Heat Exchangers and Cooling Systems.
The Japanese government plans to conduct decontamination tasks in radioactively contaminated areas. For such a situation, we developed a system that evaluates radiation dose rates in a wide radioactively contaminated area by utilizing our radiation d
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