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Takahashi, Masato; Magara, Masaaki; Sakurai, Satoshi; Kurosawa, Setsumi; Esaka, Fumitaka; Taguchi, Takuji; Takai, Konomi; Fukuyama, Hiroyasu; Lee, C. G.; Yasuda, Kenichiro; et al.
Dai-23-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, 8 Pages, 2002/09
Based on the strengthen safeguard program of the IAEA to detect undeclared nuclear activities, the method of precise and accurate isotope ratio determination for uranium and plutonium in the environmental samples (cotton swipes) has been developed at JAERI. The samples should be treated in clean environment in order to secure the analytical reliability by eliminating external contamination from the samples containing trace amount of uranium and plutonium. Since the measurement by ICP-MS is favorable to bulk analysis from view points of analytical capacity and operation simplicity, we have studied sample preparation procedures for the trace amount of uranium and plutonium to be applied to ICP-MS. Up to the present, interfering factors involved during analytical processes and the ICP-MS measurement of uranium and plutonium were examined. As a result, uranium and plutonium isotope measurement more than 100 pg and 100 fg, respectively, became possible at JAERI clean facility. At presentation, other progress in the development will be reported.
Takai, Konomi; Sakurai, Satoshi; Usuda, Shigekazu; Watanabe, Kazuo
JAERI-Conf 2002-002, 98 Pages, 2002/03
JAERI-Conf-2002-002.pdf:4.66MB
The Colloquium on Ultra-trace Analysis of Environmental Samples was held on November 28, 2001 at CLEAR (Clean Laboratory for Environmental Analysis and Research) located at JAERI Tokai Establishment. Eight presentations were made at the colloquium, covering wide area of the relevant works such as development of analytical technology, environmental sample analysis and application to the safeguards. Each presentation was followed by animated discussion. This report assembles the full papers for the presentations reported at the colloquium.
Esaka, Fumitaka; Magara, Masaaki; Hanzawa, Yukiko; Sakurai, Satoshi; Taguchi, Takuji; Takai, Konomi; Sakakibara, Takaaki; Kurosawa, Setsumi; Takahashi, Masato; Yasuda, Kenichiro; et al.
Dai-22-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, 8 Pages, 2001/11
no abstracts in English
Narita, Hirokazu; Yaita, Tsuyoshi; Suzuki, Shinichi; Takai, Konomi; Tachimori, Shoichi; Motohashi, Haruhiko*
Journal of Synchrotron Radiation, 8(Part2), p.672 - 673, 2001/03
no abstracts in English
Narita, Hirokazu; Yaita, Tsuyoshi; Okamoto, Yoshihiro; Takai, Konomi; Shiwaku, Hideaki; Shimada, Asako*; Yamamoto, Takeshi*; Tanida, Hajime*
Spring-8 Experiment Report, Vol.6, P. 9, 2001/00
no abstracts in English