Gamma camera comprising an electronic device for the correction of linearity errors

Patent · Tue Jan 03 04:00:00 EST 1984

OSTI ID:6809598

Lelong, P H; Ott, J H

The invention relates to a gamma camera for forming the image of a radiation distribution, comprising a scintillation crystal, several photomultipliers which are arranged according to a regular array opposite a surface of the scintillation crystal, the photosensitive surface of each photomultiplier facing the scintillation crystal, each photomultiplier being connected to arithmetic circuits which calculate the coordinates of the scintillations on the basis of the signals applied thereto by the photomultipliers, the gamma camera furthermore comprising an electrical circuit for correcting the calculated coordinates, the corrections being determined by the distance between the scintillation and the center of the photomultiplier tube situated nearest to the scintillation.

• Assignee: US Philips Corp., New York, NY
• Patent Number(s): US 4424447
• OSTI ID: 6809598
• 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
ANALOG-TO-DIGITAL CONVERTERS
ANGULAR DISTRIBUTION
CALIBRATION
CAMERAS
COORDINATES
CORRECTIONS
CRYSTAL COUNTERS
DESIGN
DIGITAL-TO-ANALOG CONVERTERS
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
EQUIPMENT
ERRORS
GAMMA CAMERAS
GAMMA RADIATION
IONIZING RADIATIONS
MEASURING INSTRUMENTS
OPERATION
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATION DETECTORS
RADIATIONS
SCINTILLATION COUNTERS
SCINTILLATIONS
SPATIAL DISTRIBUTION