X-ray generator

Abstract

The present invention is to provide an X-ray generator surely fixing an X-ray tube in a protection case.In an X-ray generator 1, a fixing nut 30 is fastened by screwing an outer screw part 30a of the fixing nut 30 into a female screw part 29 formed on a wall face of an opening 26 in a state that an output window holding part 12 of an X-ray tube 8 is inserted into the opening 26 of a front panel 5. By sufficiently fastening the fixing nut 30, a flange part 18 disposed at the holding part 12 of the X-ray tube 8 is abutted on a projected part 27 disposed on the panel 5, as the result, the flange part 18 is pressed toward the projected part 27 by the fixing nut 30 and the X-ray tube 8 is fixed to the panel 5. Further, since the thermal conductivity from the holding part 12 of the X-ray tube 8 to the panel 5 is enhanced and the heat of the X-ray tube 8 is made easy to radiate by using the fixing nut 30 having thermal conductivity, the generation efficiency of the X-ray can be maintained and a breakage of the X-ray tube 8 can be prevented.

Description

technical field [0001] The present invention relates to an X-ray generator that accommodates an X-ray tube that generates X-rays used for electrostatic removal and the like in a protective container. Background technique [0002] As an example of a conventional X-ray tube, see Japanese Patent Publication No. Hei 7-50594. In the X-ray tube disclosed in this gazette, after the filament is energized and heated, electron beams are emitted, and the electron beams are accelerated by a focusing grid or the like to impact a target at high speed, and X-rays inherent to the material are emitted from the target. Then, the X-rays are emitted to the outside from the X-ray transmission window provided in front of the target with a partition. Since this type of X-ray tube is in a high temperature state, its cooling is realized by natural air cooling of the target ring fixed to the target and protruding from the peripheral device (vacuum tube). In this way, by c...

AI Technical Summary

Problems solved by technology

[0003] In the X-ray tube of the type where the target and the X-ray transmission window are separated, the peripheral device itself is large, and a large space is required around the peripheral device to realize natural air cooling. As a result, the size of the protective container is increased.

On the contrary, the X-ray tube having the output window holder integrally formed with the target and the X-ray transmission window (output window) is actually small, so the diameter of the peripheral (vacuum tube) is small, and it is difficult to fix it in the protective container.

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