| 摘要 |
PROBLEM TO BE SOLVED: To economically increase the efficiency of electron ray irradiation by equalizing doses at center portion and an outer peripheral portion within a plane in the direction of depth of the electron ray irradiation, thus achieving uniform sterilization and processing, and eliminating the need for a large investment. SOLUTION: Sterilization processing using electron ray irradiation carried out while an irradiation assisting material tailored to have approximately the same specific gravity as the subject of irradiation is disposed around the subject of irradiation while in close contact therewith and the subject of irradiation is irradiated with electron rays. |
