| 摘要 |
PURPOSE:To enhance the efficiency and stability of the device by taking in a generating part of radiation into a housing container of a specific construction. CONSTITUTION:A generating part of radiation is taken in a housing container 10 having a shading ability of radiation and constituted by a movable part 10b to a fixed part 10a and a fixed part 10a. Thus, all the device is inserted into a piping 2 to be detected by a position adjusting rod 13. After the generating part 1b of radiation is positioned at a corresponding position of a weld zone 2a to be inspected and thereafter, an electromagnetic coils 14a and 14b are made conductive to displace the movable part 10b under repellant, and opening 11 radiation irradiation is formed. The radiation is irradiated to the weld zone 2a and the film 3 is exposed to high, thereby a predetermined inspection is carried out efficiently. After the completion of the inspection, by a compression spring 12, the fixed part 10a and the movable part 10b are contacted tightly and the radiation leakage to the outside is prevented. |
