Dose rate calculations for a light ion beam fusion Laboratory Microfusion Facility

A preliminary study done on the target chamber design for a light-ion-beam-driven Laboratory Microfusion Facility (LMF) is described. The LMF will explode fusion targets with yields between 10 and 1000 MJ over a period of 30 yr inside a 1.5-m radius chamber. Activation analysis has been performed for the target chamber and the resulting dose rates calculated. The calculations were performed for three different chamber wall materials: the ferritic steel 2 1/4 Cr-1 Mo, the Al-6061-T6 alloy, and a low-activation modified Al-5083 alloy. The target chamber is submerged in a borated water pool for neutron shielding. The detailed pulsing schedule has been modeled in the activation calculations