Gamma camera with light guide having greater index of refraction

Patent · Tue Jul 30 04:00:00 EDT 1985

OSTI ID:6379062

Abileah, A; Gafni, G; Simerman, M O

A gamma camera comprises a scintillation crystal having an index of refraction of 1.80-190, a collimator for imaging the object on one face of the scintillation crystal, an array of photodetectors arranged around the opposite face of the scintillation crystal, and a light guide interposed between the opposite face of the scintillation crystal and the plurality of photodetectors. The light guide is selected to have an index of refraction of at least 1.60, higher than in the conventional gamma camera, whereupon it has been found that the detection efficiency and the positional accuracy of each scintillation event can be increased, to thereby increase the sensitivity and the spatial resolution of the gamma camera.

• Assignee: Elscint Inc.
• Patent Number(s): US 4532425
• OSTI ID: 6379062
• 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
550600 -- Medicine
551000* -- Physiological Systems
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BODY
CAMERAS
COLLIMATORS
CRYSTALS
DESIGN
DETECTION
DIAGNOSTIC TECHNIQUES
FIBER OPTICS
FIBERS
GAMMA CAMERAS
GAMMA DETECTION
IMAGE PROCESSING
LIGHT TRANSMISSION
OPTICAL FIBERS
ORGANS
PHOTODETECTORS
PROCESSING
RADIATION DETECTION
REFRACTION
SCINTILLATIONS
SENSITIVITY