Circuit for operating an X-ray tube

Details Circuit for operating an X-ray tube Circuit for operating an X-ray tube

1986-10-06

1988-03-15

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

With switching means

378106, 378117, 363 20, H05G 156

Patent

active

047318031

ABSTRACT:
A circuit for operating an X-ray tube, such as in a medical diagnostics apparatus, is connected with a high-voltage generator and a switch mechanism for connecting and disconnecting the X-ray tube to the high-voltage generator. A resistor is disposed in a circuit branch which can be connected in parallel across the X-ray tube by a switch controlled by the aforementioned switch mechanism. If the X-ray tube is disconnected from the power source, the switch closes the circuit branch and causes the resistor to be connected across the X-ray tube. As a result, the X-ray tube voltage decreases relatively quickly after the high-voltage is disconnected. The resistor across the X-ray tube may be a variable resistor, such as a high-voltage triode.

REFERENCES:
patent: 4191891 (1980-03-01), Amtmann et al.
patent: 4208584 (1980-06-01), Vogler et al.

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