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JAEA Reports

Quantitative analysis method for radiation distribution in high radiation environment by gamma-ray image spectroscopy (Contract research); FY2018 Center of World Intelligence Project for Nuclear Science/Technology and Human Resource Development

Collaborative Laboratories for Advanced Decommissioning Science; Kyoto University*

JAEA-Review 2019-036, 65 Pages, 2020/03

JAEA-Review-2019-036.pdf:4.46MB

JAEA/CLADS, had been conducting the Center of World Intelligence Project for Nuclear Science/Technology and Human Resource Development (hereafter referred to "the Project") in FY2018. The Project aims to contribute to solving problems in nuclear energy field represented by the decommissioning of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, Inc. For this purpose, intelligence was collected from all over the world, and basic research and human resource development were promoted by closely integrating/collaborating knowledge and experiences in various fields beyond the barrier of conventional organizations and research fields. The sponsor of the Project was moved from the Ministry of Education, Culture, Sports, Science and Technology to JAEA since the newly adopted proposals in FY2018. On this occasion, JAEA constructed a new research system where JAEA-academia collaboration is reinforced and medium-to-long term research/development and human resource development contributing to the decommissioning are stably and consecutively implemented. Among the adopted proposals in FY2018, this report summarizes the research results of the "Quantitative Analysis Method for Radiation Distribution in High Radiation Environment by Gamma-ray Image Spectroscopy". Electron-tracking Compton camera (ETCC) has been developed originally for nuclear gamma-ray astronomy, and also applied to medical use as a technology that greatly improves the resolution of conventional Compton camera by measuring three-dimensional tracking of electrons using a gaseous 3-dimensional position detector (so called Time Projection Chamber) in the first stage. In the present study, based on the ETCC that has been developed for medical use, we produce a prototype of light weight ETCC with the emphasis on the operability at the site, and evaluate its practicability by field tests.

Journal Articles

Fusion neutron skyshine experiment at FNS

Nakao, Makoto*; Nishitani, Takeo; Ochiai, Kentaro

FAPIG, (168), p.9 - 13, 2004/11

Fusion neutron skyshine experiment have been carried out at the FNS(Fusion Neutronics Source) facility of Japan Atomic Energy Research and Institute. In this experiment, the skyshine port located just above the tritium target from which fusion neutron produced was open and the radiation dose rate of skyshine neutron that went out through the skyshine port was measured as far as about 550 m away from the tritium target with a spherical rem-counter. The measured neutron dose rate was compared with the calculation value by Monte Carlo simulation code MCNP-4B and a simple line source model.

JAEA Reports

Activity report of the Fusion Neutronics Source from April 1, 2001 to March 31, 2004

Fusion Neutron Laboratory

JAERI-Review 2004-017, 163 Pages, 2004/07

JAERI-Review-2004-017.pdf:25.47MB

no abstracts in English

Journal Articles

D-T neutron skyshine experiments and the MCNP analysis

Nishitani, Takeo; Ochiai, Kentaro; Yoshida, Shigeo*; Tanaka, Ryohei*; Wakisaka, Masashi*; Nakao, Makoto*; Sato, Satoshi; Yamauchi, Michinori*; Hori, Junichi; Wada, Masayuki*; et al.

Journal of Nuclear Science and Technology, 41(Suppl.4), p.58 - 61, 2004/03

no abstracts in English

JAEA Reports

Secondary $$gamma$$-ray measurements on the D-T neutron skyshine experiments

Tanaka, Ryohei*; Ochiai, Kentaro; Nakao, Makoto*; Yamauchi, Michinori*; Hori, Junichi; Wada, Masayuki*; Sato, Satoshi; Nishitani, Takeo

JAERI-Tech 2003-063, 62 Pages, 2003/07

JAERI-Tech-2003-063.pdf:3.41MB

no abstracts in English

Journal Articles

Using MCNP code for neutron and photon skyshine analysis

Zharkov, V. P.*; Dikareva, O. F.*; Kartashev, I. A.*; Kiselev, A. N.*; Netecha, M. E.*; Nomura, Yasushi; Tsubosaka, Akira

Journal of Nuclear Science and Technology, 37(Suppl.1), p.603 - 605, 2000/03

no abstracts in English

Journal Articles

Comparison of radiation measurements an calculations of reactor surroundings for skyshine analysis

Tsubosaka, Akira; Nomura, Yasushi; Kawabe, Toshiaki*; Zharkov, V. P.*; Kartashev, I. A.*; Netecha, M. E.*; Orlov, Y. V.*

Journal of Nuclear Science and Technology, 37(Suppl.1), p.610 - 615, 2000/03

no abstracts in English

Journal Articles

Skyshine analysis using various nuclear data files

Zharkov, V. P.*; Dikareva, O. F.*; Kartashev, I. A.*; Kiselev, A. N.*; Nomura, Yasushi; Tsubosaka, Akira

Journal of Nuclear Science and Technology, 37(Suppl.1), p.606 - 609, 2000/03

no abstracts in English

Journal Articles

Spatial and energy distributions of skyshine neutron and $$gamma$$ radiation from nuclear reactors on the ground-air boundary

Orlov, Y. V.*; Netecha, M. E.*; Vasiljev, A. P.*; Avaev, V. N.*; Vasiliev, G. A.*; Zelensky, D. I.*; Istomin, Y. L.*; Chevepnin, Y. S.*; Nomura, Yasushi

Journal of Nuclear Science and Technology, 37(Suppl.1), p.598 - 602, 2000/03

no abstracts in English

JAEA Reports

Journal Articles

Evaluation of skyshine dose rate due to gamma-rays from activated cooling water in fusion experimental reactors

Sato, Satoshi; *; Seki, Yasushi; Takatsu, Hideyuki; Mori, Seiji*

Proc. of the 8th Int. Conf. on Radiation Shielding, 0, p.946 - 953, 1994/00

no abstracts in English

Journal Articles

Analysis of neutron and secondary gamma-ray transport in air-over-ground geometry by PALLAS-2 DCY-FC code

*;

Journal of Nuclear Science and Technology, 18(8), p.581 - 594, 1981/00

 Times Cited Count:1 Percentile:24.86(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

Code System BCG for Gamma-Ray Skyshine Calculations

Ryufuku, Hiroshi; Numakunai, Takao; ; *

JAERI-M 8171, 136 Pages, 1979/03

JAERI-M-8171.pdf:2.85MB

no abstracts in English

JAEA Reports

Problems for the Evaluation of Skyshine Calculation Code

;

JAERI-M 7288, 30 Pages, 1977/09

JAERI-M-7288.pdf:0.79MB

no abstracts in English

14 (Records 1-14 displayed on this page)
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