X-ray collimator, particularly for use in computerized axial tomography apparatus

Patent · Tue Jul 07 00:00:00 EDT 1981

OSTI ID:5631073

Carson, A N

An x-ray collimator for use in computerized axial tomography apparatus includes a plurality of substantially parallel x-ray absorbing laminae disposed in the plane of a wedge-shaped x-ray beam. The length and position of each lamina with respect to a divergent x-ray source is chosen to maximize the ratio of x-ray flux impinging upon a detector array to flux falling within the collimator's penumbra, outside the detector array. A single set of moveable jaws may be disposed at the collimator exit for adjustment of the beam thickness.

• Assignee: U S Philips Corp
• Patent Number(s): US 4277684
• OSTI ID: 5631073
• Country of Publication: United States
• Language: English

Related Subjects

550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
ACTINIDES
BAFFLES
BIOMEDICAL RADIOGRAPHY
CAT SCANNING
COLLIMATORS
COMPUTERIZED TOMOGRAPHY
CONTROL EQUIPMENT
DESIGN
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
ELEMENTS
EQUIPMENT
FLOW REGULATORS
IMAGE PROCESSING
IONIZING RADIATIONS
LAMELLAE
MEASURING INSTRUMENTS
MEDICINE
METALS
NUCLEAR MEDICINE
PROCESSING
RADIATION DETECTORS
RADIATIONS
RADIOLOGY
REFRACTORY METALS
TOMOGRAPHY
TRANSITION ELEMENTS
TUNGSTEN
URANIUM
X RADIATION