Radiation detector with array of different scintillators

Details Radiation detector with array of different scintillators Radiation detector with array of different scintillators

1976-06-01

1977-07-19

Dixon, Harold A.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250363R, G01T 120

Patent

active

040371050

ABSTRACT:
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. A first of the opposed sides is adapted to face a photomultiplier tube and the other of the opposed sidesis 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.

REFERENCES:
patent: 3030509 (1963-04-01), Carlson
patent: 3982128 (1976-09-01), Groch et al.

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