Medical radiographic apparatus with means for notating detector ring

Patent · Tue Jan 30 04:00:00 EST 1979

OSTI ID:5774656

Fetter, R W

In a computer-assisted tomography (CAT) apparatus, in which a fan-shaped X-ray distribution is rotated about the patients body, it is possible to use a ring of stationary detectors disposed to receive the radiation after passage through the body. In this arrangement the ring of detectors is of smaller radius than the locus of motion of the radiation source. It would appear that this would cause the detectors to obscure the body from the radiation. An arrangement disclosed moves out of the radiation beam those detectors which would present an obstruction so that only those required to collect radiation lie in the beam.

• Assignee: EMI Limited
• Patent Number(s): US 4137455
• OSTI ID: 5774656
• Country of Publication: United States
• Language: English

Related Subjects

550600 -- Medicine
560151* -- Radiation Effects on Animals-- Man
62 RADIOLOGY AND NUCLEAR MEDICINE
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOMEDICAL RADIOGRAPHY
BODY
CAT SCANNING
DESIGN
DETECTION
DIAGNOSTIC TECHNIQUES
MEDICINE
NUCLEAR MEDICINE
PATIENTS
PHOTON TRANSMISSION SCANNING
RADIATION DETECTION
RADIOLOGY
TOMOGRAPHY
X-RAY DETECTION
X-RAY EQUIPMENT