| 摘要 |
A radiation source device of the present invention minimizes the leakage of radiation in a longitudinal direction of a pipe, thereby having a minimum radiation effect on a worker at the time of test. An embodiment of the present invention relates to a radiation source device comprising: a radiation source emitting radiation; and a collimator configured to control the emission angle of the radiation emitted from the radiation source, wherein the collimator has a depressed portion to control the emission angle of the radiation, and the depressed potion has an inclined angle so that the collimator can be positioned and used in a lateral direction of a pipe. |
