Digital radiography device

Patent · Tue Mar 10 04:00:00 EST 1987

OSTI ID:6643841

Wang, S P

This patent describes an apparatus for taking a radiograph of a stationary patient comprising a moving fan beam of x-rays defined by an x-ray source and a moving prescatter collimator slit located between the x-ray source and the stationary patient, and at least one proximity type x-ray image intensifier device for the detection of the x-rays. The proximity type x-ray image intensifier device includes an output screen for transforming the x-rays into a visible radiographic image. A post scatter collimator slit is located between the patient and the proximity type x-ray image intensifier device, and a means for moving both collimator slits and the proximity type x-ray image intensifier device in unison. A stationary tv pick-up camera device with its lens focused at the plane of the output screen of the proximity type x-ray image intensifier device is used to pick-up the visible radiographic image and to transform the image into electric signals for further digital image processing.

• Assignee: Xonics Imaging, Inc., Sunnyvale, CA
• Patent Number(s): US 4649559
• OSTI ID: 6643841
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
CAMERAS
COLLIMATORS
DIAGNOSTIC TECHNIQUES
DIGITAL SYSTEMS
ELECTROMAGNETIC RADIATION
IMAGE INTENSIFIERS
IMAGES
INDUSTRIAL RADIOGRAPHY
IONIZING RADIATIONS
LENSES
MEDICINE
NUCLEAR MEDICINE
PATIENTS
RADIATIONS
RADIOLOGY
SIGNALS
TELEVISION CAMERAS
X RADIATION
X-RAY RADIOGRAPHY