Compton scattering gamma radiation camera and method of creating radiological images

Patent · Tue Jul 16 04:00:00 EDT 1985

OSTI ID:5886498

Lee, D L. Y.

A gamma radiation camera and a method are disclosed for creating an image of the radiation density of a source of photons. The camera comprises a detecting device made with solid-state material capable of generating electron-hole pairs as a result of collisions between photons and such material. The camera further includes an identifying device which identifies an ordered pair of said collisions in which both collisions result from a common photon. The camera further includes apparatus for determining an image of said source of common photon from the locations of the collisions of, and the number of electron-hole pairs generated by said ordered pair of collisions. The apparatus for determining an image determines a collision line between two collisions of an ordered pair, and determines the angle of Compton scattering relative to the collision line which occurs at a first of the collisions of such a selected pair. In a preferred embodiment the gamma camera includes a parallel plate collimator placed between the detecting device and the position at which the source of photons is to be located. In such a preferred embodiment, the gamma camera further includes a second line determining device for determining a second line parallel with the collimation plane which forms the determined Compton scattering angle with the collision line at the location of the first collision of the selected pair.

• Assignee: E. I. du Pont de Nemours and Company
• Patent Number(s): US 4529882
• OSTI ID: 5886498
• Country of Publication: United States
• Language: English

Related Subjects

440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)
62 RADIOLOGY AND NUCLEAR MEDICINE
BASIC INTERACTIONS
BIOMEDICAL RADIOGRAPHY
CAMERAS
COLLIMATORS
COLLISIONS
COMPTON EFFECT
DESIGN
DETECTION
DIAGNOSTIC TECHNIQUES
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTRON-HOLE COUPLING
GAMMA DETECTION
GAMMA SOURCES
IMAGE PROCESSING
INCIDENCE ANGLE
INTERACTIONS
MATERIALS
MEDICINE
NUCLEAR MEDICINE
PHOTON COLLISIONS
PROCESSING
RADIATION DETECTION
RADIATION SOURCES
RADIOLOGY
SCATTERING