论文信息 - Estimation of Production Yield of 99Mo for Medical Use using Neutrons from natC(d,n) at Ed=40 MeV

Estimation of Production Yield of 99Mo for Medical Use using Neutrons from natC(d,n) at Ed=40 MeV

We estimated the production yield of 99 Mo from 100 Mo( n ,2 n ) 99 Mo using neutrons produced by bombarding a natural carbon target, nat C, with 40 MeV 5 mA deuterons. We used the latest data for the angular and energy distributions of neutrons from nat C( d , n ) and the evaluated cross section of 100 Mo( n ,2 n ) 99 Mo given in the Japanese Evaluated Nuclear Data Library to estimate the 99 Mo yield. The 99 Mo yields were obtained for different distances d between the carbon target and the 100 Mo sample, and for different 100 Mo sample radii and thicknesses. We typically obtained a 7.1 TBq activity of 99 Mo at the end of neutron irradiation for two days for a 100 Mo sample (251 g) placed at d =2 cm. The obtained 99 Mo activities show that a substantial fraction of the current 99 Mo demand in Japan could be met by adopting the proposed production method.

Futoshi Minato | Y. Nagai | Yasuki Nagai | F. Minato

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