1. Investigating Sustainability Index, 99 Mo Output and 239 Pu Levels in UO 2 Targets by Substituting 238 U with Ce.
- Author
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Raposio, Robert, Rosenfeld, Anatoly, Bedwell-Wilson, Juniper, and Thorogood, Gordon
- Subjects
SUSTAINABILITY ,MANUFACTURING processes ,PRODUCTION increases ,IRRADIATION ,URANIUM - Abstract
A new target material combination was modelled to replace the existing uranium-aluminium design used for
99 Mo manufacture to increase the sustainability of the production process. Previous efforts to develop a more sustainable uranium target for99 Mo production, resulted in the levels of239 Pu in the target after irradiation being elevated due to the increase in238 U present. MCNP6.2 was used to model 4 different cylindrical targets based on 4–7 days irradiation to further understand this effect. To reduce the resultant239 Pu levels, ratios of 0–99% of Ce were used as a replacement for238 U. The results show that the addition of140 Ce and the removal of238 U reduced the239 Pu levels in the target significantly thus increasing the sustainability of the target and giving a slight increase to the99 Mo output of the targets. [ABSTRACT FROM AUTHOR]- Published
- 2022
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