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JAEA Reports

Feasibility study on mass production of (n,$$gamma$$)$$^{99}$$Mo

Jun, B. J.; Tanimoto, Masataka; Kimura, Akihiro; Hori, Naohiko; Izumo, Hironobu; Tsuchiya, Kunihiko

JAEA-Research 2010-046, 103 Pages, 2011/01

JAEA-Research-2010-046.pdf:2.63MB

The world is currently suffering from a severe shortage of $$^{99}$$Mo and various R&Ds have been given for its availability. The only but critical shortage of (n,$$gamma$$)$$^{99}$$Mo is its extremely low specific activity, which gives inconveniency in the extraction of $$^{99m}$$Tc and is consequently converted to additional cost. Potential technologies which make the (n,$$gamma$$)$$^{99}$$Mo competitive by reducing the additional cost are already available. Because Japan and Korea import all $$^{99}$$Mo from long distance, the cost benefit of local (n,$$gamma$$)$$^{99}$$Mo production in these countries is especially large. In this report, we studied feasibility of the mass (n,$$gamma$$)$$^{99}$$Mo production from viewpoints of global and regional status of $$^{99}$$Mo demand and supply, competitiveness with other production methods, requirements and flow of the $$^{99}$$Mo, production capability, cost, convenience in usage, and alternative technologies to overcome its shortage.

JAEA Reports

Revaluation of $$^{99}$$Mo production by (n,$$gamma$$) method at HANARO

Jun, B. J.; Lee, B. C.*; Kimura, Akihiro; Hori, Naohiko; Izumo, Hironobu; Tsuchiya, Kunihiko

JAEA-Review 2010-032, 26 Pages, 2010/07

JAEA-Review-2010-032.pdf:2.52MB

After the feasibility study on $$^{99}$$Mo production by (n,$$gamma$$) method at HANARO was published by a KAERI report, worldwide supply of $$^{99}$$Mo became worse and a need for early available alternative $$^{99}$$Mo became stronger. Previous study indicated that the (n,$$gamma$$)$$^{99}$$Mo has a potential to be an alternative mass $$^{99}$$Mo available earlier than those by any other methods. It can be realized when radioisotope industry of each country accepts the use of (n,$$gamma$$)$$^{99}$$Mo for a meaningful portion of national demand. A good backup supply system among high flux reactors in the region is a prerequisite to guarantee a stable and sufficient availability of the (n,$$gamma$$)$$^{99}$$Mo for the region, for which active collaboration among reactors is essential. As the initial stage of collaboration between HANARO and JMTR for the (n,$$gamma$$)$$^{99}$$Mo supply, the specific experience and $$^{99}$$Mo production capability in HANARO have been discussed and revisited on the base of the previous report.

Journal Articles

Edge pedestal physics and its implications for ITER

Kamada, Yutaka; Leonard, A. W.*; Bateman, G.*; Becoulet, M.*; Chang, C. S.*; Eich, T.*; Evans, T. E.*; Groebner, R. J.*; Guzdar, P. N.*; Horton, L. D.*; et al.

Proceedings of 21st IAEA Fusion Energy Conference (FEC 2006) (CD-ROM), 8 Pages, 2007/03

http://www-naweb.iaea.org/napc/physics/FEC/FEC2006/html/node22.htm#3343

no abstracts in English

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