X-ray diagnostics installation comprising an X-ray tube with a c

Details X-ray diagnostics installation comprising an X-ray tube with a c X-ray diagnostics installation comprising an X-ray tube with a c

1977-04-14

1978-07-04

Church, Craig E.

Radiant energy

With charged particle beam deflection or focussing

With target means

250413, G03B 4116

Patent

active

040990567

ABSTRACT:
A circuit arrangement connected to the control grid of the x-ray tube comprises a resistance bridge having its input terminals connected to a voltage exceeding the grid cut-off voltage of the tube, the output terminals of the bridge being connected to the cathode and grid of the tube, and one arm of the bridge including a thyristor serving to control turn on of the x-ray tube by placing the bridge circuit in a substantially balanced condition, and a quenching circuit including a second thyristor in parallel with the first thyristor for interrupting conduction of the first thyristor to restore the bridge circuit to an unbalanced condition with the x-ray tube biased off.

REFERENCES:
patent: 3567940 (1971-03-01), Lambert
patent: 3683191 (1972-08-01), MacLachlan

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