Computational simulation of natUO2, 232ThO2 and U3O8-Al pills to estimate (p,fission) 99Mo yield in the modeled targets irradiated by CYCLONE30 accelerator

Appl Radiat Isot. 2017 Mar:121:64-70. doi: 10.1016/j.apradiso.2016.11.007. Epub 2016 Nov 23.

Abstract

99Mo is important for both therapy and imaging purposes. Accelerator and reactor-based procedures are applied to produce it. Newly proton-fission method has been taken in attention by some research centers. In the present work, computationally investigation of the 99Mo yield in different fissionable targets irradiated by proton was aimed. The results showed UO2 pill target could be efficiently used to produce 11.12Ci/g-U saturation yield of 99Mo using 25MeV proton irradiation of the optimized-dimension target with 70µA current.

Keywords: (99)Mo production; 30MeV Cyclotron; Accelerator-based procedure; MCNPX2.6.0 code; Pill target.