| 摘要 |
<p>PURPOSE: To effectively cool primary and secondary window foils of electron beam radiating equipment, simplify its structure and facilitate the dismantlement and assem bly. CONSTITUTION: A radiation window device is composed by assembling the first flange 62, a primary window foil 60, the first frame 70, the second frame 90, a secondary window foil 80 and the second flange 86, and a cooling space 53 is provided between the primary window foil 60 and the secondary window foil 80. The first frame 70 is equipped with a slit 72 for blowing a gas to cool the primary window foil which extends mutually parallel and opposite to the primary window foil 60 in the longitudinal direction and a slit 76 for exhausting the gas cooling the primary window foil. The second frame 90 is equipped with a slit 92 for blowing a gas to cool the secondary window foil which extends mutually parallel and opposite to the secondary window foil 80 in the longitudinal direction and a slit 98 for exhausting the gas to cool the secondary window foil. While the slit 72 for blowing a gas to cool the primary window foil and the slit 98 for exhausting the gas to cool the secondary window foil are placed on one side of the cooling space 53, the slit 76 for exhausting the gas to cool the primary window foil and the slit 92 for blowing a gas to cool the secondary window foil on the other side of it.</p> |
