Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Kawasaki, Masatsugu; Nakajima, Junya; Yoshida, Keisuke; Kato, Saori; Nishino, Sho; Nozaki, Teo; Nakagawa, Masahiro; Tsunoda, Junichi; Sugaya, Yuki; Hasegawa, Rie; et al.
JAEA-Data/Code 2017-004, 57 Pages, 2017/03
JAEA-Data-Code-2017-004.pdf:2.34MB
In emergency situation of nuclear facilities, we need to estimate the radiation dose due to radiation and radioactivity to grasp the influence range of the accident in the early stage. Therefore, we prepare the case studies of dose assessment for public exposure dose and personal exposure dose and contribute them to emergency procedures. This document covers about accidents of nuclear facilities in Nuclear Science Research Institute and past accident of nuclear power plant, and it can be used for inheritance of techniques of emergency dose assessment.
Mori, Masahiro
Pariti, 26(1), p.16 - 18, 2011/01
no abstracts in English
Kawamura, Makoto; Makino, Hitoshi; Sasao, Eiji; Niizato, Tadafumi; Yasue, Kenichi; Asamori, Koichi; Umeda, Koji; Ishimaru, Tsuneari; Osawa, Hideaki; Ebashi, Takeshi; et al.
JAEA-Research 2010-027, 85 Pages, 2010/09
JAEA-Research-2010-027.pdf:9.37MB
Japan Atomic Energy Agency (JAEA) have developed a formal evaluation method to assess the potential impacts of natural phenomena (earthquakes and faulting; volcanism; uplift, subsidence, denudation and sedimentation; climatic and sea-level changes) on a high level radioactive waste (HLW) disposal system for the purpose of maintenance of evaluation method for potential impacts of natural phenomena within more realistic view. In this report, we developed a framework as a part of the total system performance assessment for two purposes: the first one is quantification of relationship of characteristic of natural phenomena between geological environmental conditions (T-H-M-C-G), and the other one is quantification of relationship of T-H-M-C-G condition between parameters of performance assessment. We tried to apply the framework to all natural phenomena to confirm the effectiveness of the framework. On the other hand, we applied an argument-diagram that was developed one of the methods of the knowledge management to elicit future tasks. As a result, to apply the framework, we could show that information integration could carry out efficiently, and information integration was attained by the common framework by combining information on geohistory and existing information of natural phenomena and geological environmental conditions as modern-analogue. We could show that suitable scenarios might be chosen by information integration. Furthermore, we were able to elicit future tasks to this study by applying the argument-diagram.
Fukuda, Yuji; Faenov, A. Y.; Tampo, Motonobu; Pikuz, T. A.*; Nakamura, Tatsufumi; Kando, Masaki; Hayashi, Yukio; Yogo, Akifumi; Sakaki, Hironao; Kameshima, Takashi; et al.
AIP Conference Proceedings 1153, p.85 - 93, 2009/07
When the target consists of solid-density clusters embedded in the background gas, its irradiation by high intensity laser light renders ion acceleration a truly unique property. We present that the cluster-gas target, which consists of submicron-sized clusters and background gases, irradiated by a few TW laser pulse produces high energy ions upward of the order of 10-20 MeV/n in the forward direction.
Mori, Masahiro; Kakudate, Satoshi
Purazuma, Kaku Yugo Gakkai-Shi, 84(7), p.464 - 465, 2008/07
no abstracts in English
Mori, Masahiro; Takahashi, Yoshikazu
Purazuma, Kaku Yugo Gakkai-Shi, 84(5), P. 295, 2008/05
no abstracts in English
Ushigusa, Kenkichi; Seki, Masahiro; Ninomiya, Hiromasa; Norimatsu, Takayoshi*; Kamada, Yutaka; Mori, Masahiro; Okuno, Kiyoshi; Shibanuma, Kiyoshi; Inoue, Takashi; Sakamoto, Keishi; et al.
Genshiryoku Handobukku, p.906 - 1029, 2007/11
no abstracts in English
Mori, Masahiro; Yoshida, Hidetoshi
Purazuma, Kaku Yugo Gakkai-Shi, 83(11), P. 928, 2007/11
no abstracts in English
Araki, Masanori; Kamada, Yutaka; Mori, Masahiro; Nishitani, Takeo
Denki Hyoron, 92(10), p.38 - 44, 2007/10
A general view of the current status and evolution of nuclear fusion research and development in JAEA is reviewed. Concretely, the outline is shown about the fruitful results of research that are obtaining mainly on an experimental device JT-60 concisely, and the international thermonuclear experimental reactor ITER project (design and technical R&D activities, and details for construction) as well as a Broader Approach Activities for aiming at the achievement of a DEMO reactor and of a nuclear fusion energy.
Mori, Masahiro
Genshiryoku eye, 53(7), p.11 - 20, 2007/07
no abstracts in English
Mori, Masahiro; Okuno, Kiyoshi; Sakamoto, Keishi
Purazuma, Kaku Yugo Gakkai-Shi, 83(7), P. 643, 2007/07
no abstracts in English
Mori, Masahiro
Purazuma, Kaku Yugo Gakkai-Shi, 83(1), P. 102, 2007/01
no abstracts in English
Mori, Masahiro; ITER Japanese Participant Team
Fusion Engineering and Design, 81(1-7), p.69 - 77, 2006/02
Times Cited Count：1 Percentile：9.98(Nuclear Science & Technology)The ITER Transitional Arrangements (ITA) are conducted by the International Team with supports from participant teams (PTs). The Japanese PT (JA-PT) set up in JAERI has contributed to ITA by sharing a lot of technical tasks to verify feasibilities of fabrication and quality control method in procuring ITER equipments and facilities. For examples, trial fabrications of Nb3Sn strands have been performed by JA-PT with four potential suppliers, and one of the strand which meet the ITER requirements in all key parameters have already been chosen for one of the suppliers. All strands including the other suppliers strands will be fully qualified by the end of 2005. The trial fabrications of CS jackets and material for TF coil structure are also in progress at industrial level. Fabrication of the partial mock-ups of the vacuum vessel is also ongoing. Furthermore, JA-PT has made several technical developments on NB and EC systems to improve reliability of long pulse operations. Completing these technical preparations will make it possible to finalize the specification of ITER procurements.
Miura, Yukitoshi; Mori, Masahiro; Shoji, Teruaki; Matsumoto, Hiroshi; Kamiya, Kensaku; Ida, Katsumi*; Kasai, Satoshi*
Fusion Science and Technology, 49(2), p.96 - 121, 2006/02
Times Cited Count：4 Percentile：13.73(Nuclear Science & Technology)The improved modes observed in JFT-2M are characterized by the two improvements, i.e. one is the H-mode at the edge, and other modes are core improvement with peaked profiles near the center. The improvement of the pellet injected H-mode was a combination of H-mode and the core improvement. The discovery of limiter H-mode had an impact on the physics understanding of the H-mode and showed the formation of transport barrier at a place without discontinuity of the magnetic field line topology. The appearance of ELMs by applying ergodic fields was investigated and it was clarified that n
4 helical components were effective to produce ELMs. A SOL biasing had effects to compress neutrals at divertor region. It would be understood that the compressed neutrals at divertor region might make a situation of low L/H threshold power. High recycling steady (HRS) H-mode could be reproducibly obtained by boronization. It was found that HRS appears at the pedestal collisionality greater than 1.
Mori, Masahiro
Denki Hyoron, 89(9), p.7 - 13, 2004/09
no abstracts in English
Mori, Masahiro
Koon Gakkai-Shi, 30(5), p.236 - 242, 2004/09
no abstracts in English
Kamada, Yutaka; Fujita, Takaaki; Ishida, Shinichi; Kikuchi, Mitsuru; Ide, Shunsuke; Takizuka, Tomonori; Shirai, Hiroshi; Koide, Yoshihiko; Fukuda, Takeshi; Hosogane, Nobuyuki; et al.
Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.185 - 254, 2002/09
Times Cited Count：34 Percentile：48.48(Nuclear Science & Technology)With the main aim of providing physics basis for ITER and the steady-state tokamak reactors, JT-60/JT-60U has been developing and optimizing the operational concepts, and extending the discharge regimes toward sustainment of high integrated performance in the reactor relevant parameter regime. In addition to achievement of the equivalent break-even condition (QDTeq up to 1.25) and a high fusion triple product = 1.5E21 m-3skeV, JT-60U has demonstrated the integrated performance of high confinement, high beta-N, full non-inductive current drive with a large fraction of bootstrap current in the reversed magnetic shear and in the high-beta-p ELMy H mode plasmas characterized by both internal and edge transport barriers. The key factors in optimizing these plasmas are profile and shape controls. As represented by discovery of various Internal Transport Barriers, JT-60/JT-60U has been emphasizing freedom and restriction of profiles in various confinement modes. JT-60U has demonstrated applicability of these high confinement modes to ITER and also clarified remaining issues.
Mori, Masahiro; Shoji, Teruaki; Araki, Masanori; Saito, Keiji*; Senda, Ikuo; Omori, Junji*; Sato, Shinichi*; Inoue, Takashi; Ono, Isamu*; Kataoka, Takahiro*; et al.
Nihon Genshiryoku Gakkai-Shi, 44(1), p.16 - 89, 2002/01
no abstracts in English
; Masaki, Kei; ; Morimoto, Masaaki*; *; Sakurai, Shinji; *; Saido, Masahiro; Inoue, Masahiko*; *; et al.
JAERI-Tech 98-049, 151 Pages, 1998/11
no abstracts in English
Masaki, Kei; ; ; Morimoto, Masaaki*; *; Hosogane, Nobuyuki; Sakurai, Shinji; Saido, Masahiro
Purazuma, Kaku Yugo Gakkai-Shi, 74(9), p.1048 - 1053, 1998/09
no abstracts in English
