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Yagi, Masahiro; Watanabe, Masanori; Oyama, Koji; Yamamoto, Kazuyoshi; Komeda, Masao; Kashima, Yoichi; Yamashita, Kiyonobu
Applied Radiation and Isotopes, 67(7-8), p.1225 - 1229, 2009/07
Times Cited Count：11 Percentile：59.65(Chemistry, Inorganic & Nuclear)Yanagisawa, Kazuaki; Inoue, Tomio*; Hayakawa, Kazushige*; Shiotari, Harutaka*; Nakamura, Yoshihide*; Matsuyama, Kazuya*; Nagasawa, Kiyoshi*
no journal, ,
The economic scale of radiological technology in medicine/dentistry in 2005 was about 13 billion dollars. Economic scale of medical/dental cares in 2005 was large to the magnitude of 17% than that in 1997. It is worthy of mentioning that almost radiological items used in medical/dental cares were increased except a radioisotope examination in medical care. Namely, radioisotope examination was 1.7 million dollars in 1997 but was 0.4 million dollars in 2005. No radioisotopes were used in the examination of dentist.
Kusunoki, Tsuyoshi; Magome, Hirokatsu; Takeuchi, Masaki; Kobayashi, Shinsho*; Yamashita, Kiyonobu
no journal, ,
JAEA has been conducting practical irradiation for production of Neutron-Transmutation-Doped-Silicon (NTD-Si) since 1977. The JRR-3 and JRR-4 of JAEA are used to irradiate Silicon ingots at present. A Silicon ingot is irradiated with an irradiation facility in the heavy water reflector tank in the JRR-3. The maximum size of silicon ingot which can be irradiated in the facility of JRR-3 is about 152 mm (6 inches) in diameter and 600 mm in length. A silicon ingot is irradiated in the irradiation facility by the side of reactor core in the JRR-4. The maximum silicon ingot which can be irradiated in JRR-4 is about 125 mm (5 inches) in diameter and the 400 mm in length. The amount of NTD-Si was about 3.7 tons at the JRR-3 and about 0.7 tons at the JRR-4 in 2006 Japanese fiscal year. We are planning to investigate the expansion technology of the NTD-Si productivity in the JRR-3.
