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Saegusa, Jun; Tagawa, Akihiro; Kurikami, Hiroshi; Iijima, Kazuki; Yoshikawa, Hideki; Tokizawa, Takayuki; Nakayama, Shinichi; Ishida, Junichiro
Mechanical Engineering Journal (Internet), 3(3), p.15-00609_1 - 15-00609_7, 2016/06
After the Fukushima nuclear accident, JAEA lead off demonstration tests to find out effective decontamination methods for various school facilities in Fukushima. It included (1) dose reduction measures at schoolyards, (2) purification of swimming pool water and (3) removal of surface contamination of playground equipments. Through these tests, they established practical methods suitable for each situation; (1) At school yards, dose rates were drastically reduced by removing topsoil which was then placed in trenches of 1 m deep; (2) For the purification of pool water, the flocculation-coagulation treatment was found to be effective for collecting radiocesium dissolved in the water; (3) Demonstration tests for playground equipments, such as horizontal bars and a sandbox wood frame, suggested that effectiveness of decontamination considerably varied depending on the material, paint or coating condition. This paper reviews these demonstrations.
Saegusa, Jun; Tagawa, Akihiro; Kurikami, Hiroshi; Iijima, Kazuki; Yoshikawa, Hideki; Tokizawa, Takayuki; Nakayama, Shinichi; Ishida, Junichiro
Proceedings of 23rd International Conference on Nuclear Engineering (ICONE-23) (DVD-ROM), 5 Pages, 2015/05
After the Fukushima nuclear accident, JAEA lead off demonstration tests to find out effective decontamination methods for various school facilities in Fukushima. It included (1) dose reduction measures at schoolyards, (2) purification of swimming pool water and (3) removal of surface contamination of playground equipments. Through these tests, they established practical methods suitable for each situation; (1) At school yards, dose rates were drastically reduced by removing topsoil which was then placed in trenches of 1 m deep; (2) For the purification of pool water, the flocculation-coagulation treatment was found to be effective for collecting radiocesium dissolved in the water; (3) Demonstration tests for playground equipments, such as horizontal bars and a sandbox wood frame, suggested that effectiveness of decontamination considerably varied depending on the material, paint or coating condition. This paper reviews these demonstrations.
Ishida, Junichiro
FBNews, (446), p.1 - 5, 2014/02
no abstracts in English
Ishida, Junichiro
Genshiryoku Shisutemu Nyusu, 24(1), p.17 - 23, 2013/06
no abstracts in English
Ishida, Junichiro
Hoeikyo Nyusu, (73), p.1 - 3, 2012/10
no abstracts in English
Ishida, Junichiro
Enerugi Rebyu, 32(3), p.28 - 31, 2012/03
no abstracts in English
Ishida, Junichiro
Hoken Butsuri, 46(1), p.5 - 6, 2011/03
no abstracts in English
Ishida, Junichiro
Mombu Kagaku Jiho, (1571), p.32 - 33, 2007/01
no abstracts in English
Ishida, Junichiro
Protection of the Environment from the Effects of, 0 Pages, 2003/00
None
Ishida, Junichiro; Takahashi, Keizo; Nomura, Tamotsu
The First Asian and Oceanic Congress for Radiation Protection (AOCRP-1), 0 Pages, 2002/00
None
Ishida, Junichiro; ; ; ; Akiyama, Kiyomitsu; ; Tanaka, Hiroshi; ; Kurimata, Tomoyuki*; Ozawa, Tomoyasu*; et al.
JNC TN8410 98-002, 112 Pages, 1998/09
None
Ishida, Junichiro; Ninomiya, Kazushige; Tasaki, Takashi; Koike, Yuji*; *
PNC TN8410 95-041, 27 Pages, 1994/12
None
; Ishida, Junichiro
Proceedings of 4th International Conference on Nuclear Fuel Reprocessing and Waste Management (RECOD '94), 0 Pages, 1994/00
None
; Ishida, Junichiro
Proceedings of 4th International Conference on Nuclear Fuel Reprocessing and Waste Management (RECOD '94), 0 Pages, 1994/00
None
Ozeki, Kiyoshi; Akiyama, Kiyomitsu; Ishida, Junichiro
PNC TN8410 93-286, 73 Pages, 1993/11
None
