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Radiography

Patent ·
OSTI ID:5734005

In pulsed X-ray fluoroscopy in which the fluoroscopic screen receiving the X-rays is subsequently observed by a video recording system incorporating an image intensifier, the quality of the video image is impaired because of electrical noise and phosphor flare. The image quality is improved by reducing the gain of the video system synchronously with the occurrence of each X-ray pulse. In addition, the residual disturbance left on the video output is stabilized by synchronizing the video framing cycle frequency with the X-ray pulse frequency.

Assignee:
Rolls-Royce (1971) Ltd.
Patent Number(s):
US 4137454
OSTI ID:
5734005
Country of Publication:
United States
Language:
English

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Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
DESIGN
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
FLUOROSCOPY
FREQUENCY SELECTION
GAIN
IMAGES
IONIZING RADIATIONS
MEDICINE
NOISE
NUCLEAR MEDICINE
PULSES
RADIATIONS
RADIOLOGY
SYNCHRONIZATION
TELEVISION
X RADIATION
X-RAY EQUIPMENT