Canister-type dosimeter and multidimensional mapping of absolute radiation dosage distribution using said dosimeter

摘要

The invention pertains to a dosimeter using a canister-type irradiator having a void area adapted to contain material to be processed by irradiation and absolute dose distribution indicia which indicia comprises (i) a radiochromic, self-developing, radiation sensitive film enclosed in a radiation transmitting leak proof housing and fixedly mounted in the canister and (ii) an absolute dosage measuring amount of alanine fixedly mounted in a leak proof receptacle on the outer surface of the housing at a location overlaying said film. The invention also relates to an improved canister-type irradiator apparatus and its method of operation.