Title:
IRRADIATION WINDOW COOLING DUCT FOR ELECTRON BEAM IRRADIATING DEVICE
Document Type and Number:
Japanese Patent JP3536625
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To sharply reduce the work quantity without removing lower plates and without removing a cooling air duct by making the portion of a cooling air nozzle located directly below a primary window frame independently removable from the cooling air duct.
SOLUTION: A primary window foil 5 is fitted to the opening section of a scanning pipe flange 2 at the lower end of a scanning pipe 1 by a primary window frame 3. A secondary window foil 15 is fixed to an opening section between lower plates 17, 18 by secondary window frames 13, 14. Cooling air is blown from a cooling air nozzle 9 to the window foil 5 to cool it. The window foil 5 is pressed by a central sash bar 27 and a window foil presser 28. The nozzle 9 at the tip section of a cooling air duct 8 is a member independent of the duct 8 and is made removable. The nozzle 9 is removably connected to the duct 8 at a junction 30. A duct flange is vertically formed at the end section of the duct 8. The nozzle 9 is the member independent of the duct 8, and a nozzle flange is formed at its base section. A narrow jet port is formed at the tip of the nozzle 9 to squeeze the cooling air.
Inventors:
Hayashi, Keizo
Application Number:
JP30996797A
Publication Date:
June 14, 2004
Filing Date:
October 24, 1997
Export Citation:
Assignee:
NISSIN HIGH VOLTAGE CO LTD
International Classes:
G21K5/00; G21K5/04; (IPC1-7): G21K5/00; G21K5/04
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