X-ray or gamma ray systems or devices – Electronic circuit – X-ray source power supply
Patent
1984-12-24
1987-06-02
Church, Craig E.
X-ray or gamma ray systems or devices
Electronic circuit
X-ray source power supply
378110, 378112, H05G 120
Patent
active
046708936
ABSTRACT:
A DC voltage from a DC power source is supplied through a high speed switching device to a capacitor provided in the primary side of a transformer and a primary winding, thereby generating a high frequency signal at the primary winding of the transformer. A voltage between the first and the second output terminals of the transformer is applied between the anode and the filament of the X-ray tube as an X-ray tube voltage. Here, a system control device reads out a plurality of optimum switch control data for diagnostic items on the basis of various condition data from a subject information inputting device, and supplies them to the high speed switching device. The switching device varies the switching speed on the basis of the plurality of given switch control data, thereby instantaneously varying the value of the X-ray tube voltage.
REFERENCES:
patent: 4295049 (1981-10-01), Ebersberger et al.
patent: 4309612 (1982-01-01), Aichinger
patent: 4317040 (1982-02-01), Wuerflein
patent: 4366575 (1982-12-01), Bax
Breitling, V. G., et al., "Polyphos 300--ein Mittelfrequenzrontgengenerator", Electromedica, Feb. 1981, pp. 113-116.
Church Craig E.
Kabushiki Kaisha Toshiba
Porta David P.
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