X-ray tube high voltage cable transient suppression

Details X-ray tube high voltage cable transient suppression X-ray tube high voltage cable transient suppression

1989-10-05

1991-04-16

Westin, Edward P.

X-ray or gamma ray systems or devices

Electronic circuit

378101, 378194, 361 58, 333 33, H05G 108

Patent

active

050089129

ABSTRACT:
An X-ray imaging system includes an X-ray tube, which is biased by a high voltage power supply connected to the tube by one or two shielded cables which have a characteristic impedance. The cables are coupled to the X-ray tube by a resistance which is substantially equal to the characteristic impedance when a single cable is used or to twice the characteristic impedance when two cables are used. During a breakdown of the X-ray tube, the resistance depresses electrical current flow between the anode and the cathode of the tube. This current is in part due to the energy stored in the cable, which is not depressed by conventional current limiting circuits in the high voltage power supply.

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