| 摘要 |
PURPOSE:To be able to omit the resetting operation of an integrating timer and to realize quick fluoroscopic diagnosis by sending a reset signal to the integrating timer, and installing a reset circuit which automatically returns the integrating timer to an initial state. CONSTITUTION:Before fluoroscopy is performed, an integrating timer 3 is set in a desired fluoroscopic time with a setting switch 5. X-ray 12 is irradiated from an X-ray tube 1 under the control of an X-ray controller 2, and the X-ray fluoroscopy of a subject P is performed. While the X-ray is irradiated, the integrating timer 3 integrates the exposure time. When the X-ray fluoroscopy of the subject P finishes within the setting time of the integrating timer 3, a reset signal 11 is outputted from a reset circuit 13, and the integrating timer 3 is reset with the reset signal 11. Therefore, the resetting operation of the integrating timer is omitted, diagnostic capacity is increased.
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