| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray irradiation source and an X-ray irradiation device, capable of secure notification of the life of an X-ray tube irrespective of a power supply state from a power supply.SOLUTION: An X-ray irradiation unit 3 includes an X-ray tube 6 for generating an X-ray, a life detection circuit 15b for detecting the life of the X-ray tube 6 and a display circuit 15c for displaying the life detection by the life detection circuit 15b to the outside. The life detection circuit 15b includes an output unit 32c for supplying power to the display circuit on detecting the life. The display circuit 15c includes a life display LED 9 that emits light by the power supplied from the output unit 32c, and a capacitor 28, connected in parallel to the life display LED 9, for storing power on receiving power supplied from the output unit 32c. When the power of the X-ray irradiation unit 3 is switched off, light emission of the life display LED 9 continues by the power stored in the capacitor 28, so that notification of the life of the X-ray tube 6 can be performed securely. |
