System management for aggregation of knowledge on marine geological survey in coastal areas

Takahashi, Tadao*; Sato, Toshinori; Masunaga, Kosuke

JAEA-Review 2017-030, 60 Pages, 2018/01

JAEA-Review-2017-030.pdf:4.32MB

The amount of the information such as the data, models and analysis results related to geological environment has been enormous. It is believed that an appropriate organization of the information is useful for conducting geological environment survey work at the candidate sites of geological disposal. The Survey on Geological Disposal Technology projects commissioned by METI that started in FY2015 handles various information such as the data, models, analysis results, etc. of geological environment. In this project, in preparation for collection and compilation of the information on geological environment in coastal areas, we have made clear the current status of the existing systems including databases. At the same time, we have created measures for centralized information management for the purpose of organizing a huge amount of information as well as sharing the information and information management systems among the related organizations.

Intraoperative boron neutron capture therapy using thermal/epithermal mixed beam

Matsumura, Akira*; Yamamoto, Tetsuya*; Shibata, Yasushi*; Nakai, Kei*; Zhang, T.*; Matsushita, Akira*; Takano, Shingo*; Endo, Kiyoshi*; Akutsu, Hiroyoshi*; Yamamoto, Kazuyoshi; et al.

Research and Development in Neutron Capture Therapy, p.1073 - 1078, 2002/09

Since 1998 to 2002, a new clinical trial of an intraoperative boron neutron capture therapy (IOBNCT) at JRR-4 of Japan Atomic Energy Institute (JAERI) using BSH with mixed thermal/epithermal neutron beam has been accomplished. There have been 9 patients included in this study. The median survival time (MST) in GBM was 19.8 months and 16.8 months in AA. IOBNCT with mixed thermal/epithermal neutron beam provide better primary radiation effect than conventional therapy in selected cases. Our phase I/II clinical trial was effective in local tumor control. Further clinical trial with new design should be performed to prove the efficacy of IOBNCT.

Basic and clinical studies for application of epithermal neutron beam for neutron capture therapy

Nose, Tadao*; Matsumura, Akira*; Yamamoto, Tetsuya*; Shibata, Yasushi*; Yoshida, Fumiyo*; Akutsu, Hiroyoshi*; Yasuda, Susumu*; Matsushita, Akira*; Nakai, Kei*; Yamada, Takashi*; et al.

UTRCN-G-29, p.114 - 123, 2001/00

no abstracts in English

Dose analysis in safety and site evaluation for the JMTR core conversion to LEU fuel

Tsuchida, Noboru; ; ; ; ; Saito, Minoru;

ANL/RERTR/TM-19, CONF-9209266, 0, p.259 - 266, 1995/00

no abstracts in English

Radiation resistant aromatic poly ether (BEK) and the application for irradiation capsules in a research reactor

*; Arigane, Kenji; ; Takahashi, Hidetake; Seguchi, Tadao

39th Int. SAMPE Symp. and Exhibition,Vol. 39 (Book 2), 0, p.2231 - 2243, 1994/00

no abstracts in English

Development of irradiation capsules using polymers

Arigane, Kenji; *; ; Seguchi, Tadao; Takahashi, Hidetake

Proc. of 4th Asian Symp. on Research Reactors, 10 Pages, 1993/00

no abstracts in English

Development of plastic capsule for research reactor irradiation

Arigane, Kenji; ; ; Aoyama, Isao; Seguchi, Tadao; Takahashi, Hidetake

JAERI-M 92-078, 22 Pages, 1992/06

JAERI-M-92-078.pdf:0.75MB

no abstracts in English

Study of pressure dependence of permeability in hydrogen-nickel system to the design of hydrogen detector; Studies of small leak sodium-water reaction (9): Study report of 50 MWSGTF for sodium-water reaction (3)

Kanegae, Naomichi*; *; *; *; *; *; Hiyama, Kunihiko*; Takahashi, Tadao*

PNC TN941 76-29, 55 Pages, 1976/03

PNC-TN941-76-29.pdf:1.85MB

Generally, in the phenomena of hydrogen permeation or diffusion through nickel membrane, the relationship between the measured pressure P (pressure in vacuum side (mmHg)) and P (partial pressure of hydrogen in sodium (mmHg)) should be according half-power low, [P P] But some report indicated that the above equation is not realized, and the same phenomenon was also observed in our in-sodium experiments of the SWAT-2 and 50MWSGTF at PNC. This phenomenon is very important in the desigen detectors. An in gas experiment (range of P ; 10 10 mmHg, temperature; 5 stages of 216C 505C) was performed using the Nickel Membrane Ionpump Type Hydrogen Detectors (Thickness:0.25m, Area: 150cm) in the 50MW Steam Generator Test Facility of PNC, and empirical results for the pressure dependence effect on the permeability K that could be employed in the design of hydrogen detectors were obtained as follow, (1)When P 0.5 Torr, K is found to be independent of pressure and the temperature dependence is expressed as [K=k exp (-E/RT)] Where, K is a constant, R the gas constant, E the activation energy and T the temperature. (2) When P 0.5 Torr, permeability K is expressed as [K = Kb P] Where K is the same as above equation, b and m are constants. This indicates that the pressure dependence of pemeability in the low pressure range tends to be expressed by the Freundlich's adsorption isotherm equation. From the experiments, b and m are determined as follows (these were found to be independent of temperature): [b=1.25, m=2.8] (3) If the relationship between P and P is written as [P P the combination of n and m yielde the following equation [ 1/n = 1/m + 1/2] The value of n was extracted from the data of in-sodium hydrogen detectors in SCTI, Phenix, PNC(SWAT-2,

None

Kuroha, Mitsuo; ; ; Tanabe, Hiromi; Miyake, Osamu;

Joki Hasseiki No Anzensei Ni Kansuru IAEA Semmonka Kaigi, , 

None

Structuring system for plant design information of prototype fast breeder reactor

Yoshikawa, Shinji; Minami, Masaki*; Takahashi, Tadao*

no journal, , 

Aiming at profound understanding of fast breeder reactor plants, a trial software has been built to correlate various technical information items considered in the design stage of the Japanese prototype fast breeder reactor Monju, along with some decision making consequences as of plant characteristics evaluation.