ELECTRON BEAM IRRADIATION ENERGY AMOUNT MONITORING SYSTEM FOR ELECTRON BEAM STERILIZER

摘要

PROBLEM TO BE SOLVED: To grasp the amount of electron beam irradiation energy so that measurement devices cannot break down due to electron beam irradiation, in an electron beam sterilizer surrounded by a sterilization chamber.;SOLUTION: The electron beam sterilizer 1 sterilizes a container 2 etc. in the sterilization chamber 4 by electron beam irradiation from an electron beam irradiation device 3. In the electron beam sterilizer 1, a light reflector 11 with a pipeline, in which a liquid is circulated, is installed in a position near the container 2 subject to the electron beam irradiation from the electron beam irradiation device 3; supply piping 13 for supplying a liquid to the pipeline, and recovery piping 14 and 15 for recovering a liquid from the pipeline are connected to the light reflector 11; and flowmeters 16 and 17 for measuring the flow rate of the liquid, and thermometers 18-20 for measuring the temperature of the liquid are provided midway through the supply piping 13 and the recovery piping 14 and 15, outside the sterilization chamber 4. The amount of electron beam irradiation energy received by the light reflector 11 is obtained by being computed by a control device 25, on the basis of the measured flow rate and temperature of the liquid, so that the amount of electron beam irradiation energy applied to the container 2 can be monitored based on the obtained amount of electron beam irradiation energy.;COPYRIGHT: (C)2012,JPO&INPIT