X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer
Patent
1984-11-30
1987-11-10
Fields, Carolyn E.
X-ray or gamma ray systems or devices
Electronic circuit
Exposure timer
378105, 378106, 378111, 378112, 378115, 378116, 358111, H05G 164
Patent
active
047062681
ABSTRACT:
Digital radiography apparatus uses a resonance-type high frequency inverter having a main switch in series with an auxiliary switch. An X-ray tube receives the pulsed power from the high frequency inverter, after voltage ampliflication and rectification, emitting pulsed X-rays to a patient. A TV camera obtains X-ray transmission images of the patient, and an image processor generates a visual diagnostic image by subtracting one X-ray transmission image from another. The high frequency inverter circuit is controlled synchronously with the processing operation of the image processor.
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Nakashika et al., "Latest Diagnostic System for Circulatory Organs" 43 Toshiba Review Intl Ed. 24-29, Jul.-Aug. 1969.
Fields Carolyn E.
Freeman John C.
Kabushiki Kaisha Toshiba
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