| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide electron beam irradiation equipment which uses metal foil having a narrower width to make sheets of window foil, since it is difficult to obtain wide metal foil for covering openings of the equipment and in addition pin hole inspection is insufficient in some cases, though two-window type equipment having two openings in an irradiation portion is produced for efficiently performing electron beam treatment of large-sized substances to be treated. <P>SOLUTION: Instead of covering the two openings with a sheet of window foil in common, two sheets of window foil are used. A sheet of window foil is glued to one opening, and the other sheet of window foil is glued to the other opening. Thus, one sheet of window foil is attached to each opening independently. <P>COPYRIGHT: (C)2004,JPO |
