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Iwadachi, Takaharu*; Uchida, Munenori*; Mishima, Yoshinao*; Fujita, Akitsugu*; Kawamura, Hiroshi; Shestakov, V.*; Miyakawa, Masaru*
JAERI-Conf 2004-006, p.196 - 202, 2004/03
no abstracts in English
Sakamoto, Yukio
KEK Proceedings 2001-14, p.236 - 242, 2001/06
no abstracts in English
Shimazaki, Junya; Ochiai, Masaaki; Ishida, Toshihisa; Hoshi, Tsutao
10th Pacific Basin Nuclear Conf. (10-PBNC), p.828 - 833, 1996/00
no abstracts in English
; Hishida, Makoto; Takizuka, Takakazu
Genshiryoku Kogyo, 38(1), p.53 - 59, 1992/01
no abstracts in English
Akiyama, Takayuki; Yokoyama, Kunihiko; Ara, Kuniaki
PNC TN9410 91-169, 87 Pages, 1991/08
We have been developing a inspection tool in order to apply for ISl of 32B sized elbow piping on MONJU primary cooling circuit. Experiments and examination were carried out on design work to decide the design parameters. We obtained the results as follows, (1)The design parameters of un ultrasonic probe, such as the ultrasonic element's diameter, frequency and refraction angle, were chosen as the most suitable for fraw detection. (2) It was confirmed that the most stable scanning of the scanner was achieved by the control of 3 driving wheels. (3) The scanner could be carried by 2 persons, it's weight was 38kg. (4) The handling mechanism for thermal insulator consist's of three divided piecies and lt's driving source is pneumatic. The conclusions of this study were as follows, (1) An equipments of the volumetric examination for large scale elbow piping was designed, and it could be use at 80C without supplying and collecting apparatus for couplant. (2) This system must be contribute the reduction of human radiation dose.
神谷 潤一郎
小泉 欧児*; 那須 昌吾*
【課題】従来よりも軽量で設置の制約が小さく、高エネルギー領域の放射線に対しても優れた遮蔽率を有する放射線遮蔽材を提供する。 【解決手段】本発明の放射線遮蔽材は、繊維状ナノカーボン材料と、第1の放射線遮蔽粒子と、バインダーを含む複合体を備える放射線遮蔽材において、記繊維状ナノカーボン材料及び前記第1の放射線遮蔽粒子が前記バインダーに分散されてなる。【発明の効果】本発明に係る放射線遮蔽材は、従来よりも軽量で設置の制約が小さく、高エネルギー領域の放射線に対しても優れた遮蔽率を有する。