Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Osaka, Masahiko; Konashi, Kenji*; Hayashi, Hirokazu; Li, D.*; Homma, Yoshiya*; Yamamura, Tomoo*; Sato, Isamu; Miwa, Shuhei; Sekimoto, Shun*; Kubota, Takumi*; et al.
Proceedings of International Conference on Toward and Over the Fukushima Daiichi Accident (GLOBAL 2011) (CD-ROM), 5 Pages, 2011/12
Summer schools for future experts have successfully been completed under Japan Actinide Network (J-ACTINET) for the purpose of development of human resources who are expected to be engaged in every areas of actinide-research/engineering. The first summer school was held in Ibaraki-area in August 2009, followed by the second one in Kansai-area in August 2010. Two summer schools have focused on actual experiences of actinides in actinide-research fields for university students and young researchers/engineers as an introductory course of actinide-researches. Several quasi actinide-handling experiences at the actinide-research fields have attracted attentions of participants at the first school in Ibaraki-area. The actual experiments using actinides-containing solutions have been carried out at the second school in Kansai-area. Future summer schools will be held every year for the sustainable human resource development in various actinide-research fields.
Yamana, Hajimu*; Moriyama, Hirotake*; Asano, Hideki*; Shiokawa, Yoshinobu*; Yamamura, Tomoo*; Hasegawa, Kazuki*; Kimura, Akihiro*; Umekita, Satoshi*
JAERI-Tech 2002-018, 33 Pages, 2002/03
JAERI-Tech-2002-018.pdf:1.95MB
no abstracts in English
Takahashi, Takeshi; ; ; Kashiwazaki, Hiroshi; Fujita, Tomoo; Nomura, Kazunori; Yamana, Satoshi
JNC TN8420 99-005, 48 Pages, 1999/01
None
Yu, Runlan*; Sato, Kazuhiko; Nagara, Shuichi*; Yamana, Satoshi
Donen Giho, (105), p.73 - 78, 1998/03
None
Kawamura, Kazuhiro; Yamana, Satoshi; Kobayashi, Hiroaki;
PNC TN8440 98-006, 184 Pages, 1998/02
None
Kowatari, Munehiko; Kubota, Takumi*; Shibahara, Yuji*; Fujii, Toshiyuki*; Takamiya, Koichi*; Mizuno, Satoshi*; Yamana, Hajimu*
no journal, ,
Instead of conventional Ge semiconductor detectors and NaI(Tl) scintillation spectrometers, an application of a CZT whose crystal has the dimension of 1 cm cubic semiconductor to the in-situ environmental radio-activity measurement was attempted in deeply affected areas in Fukushima region. A CZT detector does not have such a high resolution of peaks, comparing a Ge detector. However, it is found that a CZT has enough characteristics to properly determine radio-activity of 
Cs and 
Cs in soil, throughout the in-situ measurement campaign in deeply affected area within 5 km from the Fukushima Dai-ichi Nuclear Power Plant, where dose rates exceed 50 
Sv h
. Results of radioactivity concentration in soil ranged between 1 and 500 kBq m
and seem consistent to those obtained by the air-borne measurement.
Kowatari, Munehiko; Kubota, Takumi*; Shibahara, Yuji*; Fujii, Toshiyuki*; Takamiya, Koichi*; Mizuno, Satoshi*; Yamana, Hajimu*
no journal, ,
For the purpose of determining a surface deposition density on soil for radio-cesiums, a CdZnTe (CZT) semiconductor detector whose crystal has dimensions of 1 cm cubic was applied to the in situ environmental radio-activity measurement in deeply contaminated areas in Fukushima region. Even in high dose rate areas where pulse height spectra weren't able to be properly obtained by the conventional high purity Ge semiconductor detector, proper pulse height spectra were obtained by the CZT detector with certain accuracy. Results of deposition density on soil for Cs and Cs derived from net peak areas by the CZT detector seemed consistent, comparing with those measured by the Japanese government. Air kerma rates were estimated by the same pulse height spectra for determining surface deposition density on soil for radio-cesiums and found to be almost the same values as obtained by the NaI(Tl) scintillation survey-meter.
