Radiation detector with array of different scintillators

Patent · Tue Jul 19 04:00:00 EDT 1977

OSTI ID:7294868

Laurer, G R

Apparatus for detecting the location of a source of electromagnetic radiation is provided which does not employ a collimator. The need for a collimator is eliminated by the provision of a novel array of scintillators. The array comprises superposed scintillator crystals of three respective different types in their response to electromagnetic radiation. Three crystals of a first type are alternated with one crystal each of second and third types. An edge of each of the crystals is exposed at two opposed sides of the array. The first of the opposed sides is adapted to face a photomultiplier tube and the other of the opposed sides is adapted to receive radiation from a source which is to be detected. The respective edges of the second and third types of crystals at the radiation receiving side of the array are in a first plane and the respective edges of the first type of crystals at the radiation receiving side of the array are in a second plane spaced from the first plane. The array is used together with a photomultiplier tube facing the aforementioned first opposed side of the array for receiving light therefrom and means for distinguishing and counting pulses emanating from each of the three types of crystals. 3 figures.

• Assignee: TIC; EDB-78-005441
• Patent Number(s): US 4037105
• OSTI ID: 7294868
• 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
CAMERAS
DESIGN
GAMMA CAMERAS
IMAGES
MEASURING INSTRUMENTS
PHOTOMULTIPLIERS
PHOTOTUBES
RADIATION DETECTORS
RADIATION SOURCES
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
WHOLE-BODY COUNTERS