Scintillation camera

Details Scintillation camera Scintillation camera

1978-04-04

1980-09-16

Krass, Errol A.

Boots, shoes, and leggings

250363S, 250369, 364571, G01T 120

Patent

active

042233887

ABSTRACT:
A scintillation camera which detects the radiation position of radiation and visualizes the corresponding position by an oscilloscope, comprises: a reference radiation source including a radiation source and a radiation shielding member having a plurality of through-holes arranged in a matrix; a first memory for storing a picture of a reference radiation source during a calibrating mode in dependence on position signals of radiation radiated from the reference radiation source; an arithmetic unit for computing the correcting amount at each cross point in a given matrix in dependence on a departure of the position of each hole of the radiation shielding member in the picture stored in the first memory from the correct position of the corresponding hole of the actual radiation shielding member; a second memory for storing the correcting amounts at the respective cross points of the given matrix from the arithmetic unit; a correction amount calculation circuit which reads out the correcting amounts at cross points of the given matrix which are stored in the second memory and close to the position signal of a radiation to be actually measured during a measuring mode to calculate the correcting amount of the position of the radiation to be actually measured; and adding circuit for adding the correcting amounts of the position signal of the radiation to be actually measured from the correcting amount calculation circuit to the position signal from a position calculation circuit.

REFERENCES:
patent: 3732419 (1973-05-01), Kulberg et al.
patent: 3745345 (1973-07-01), Muehllehner
patent: 3851177 (1974-11-01), Van Dijk et al.
patent: 3878373 (1975-04-01), Blum
patent: 3984689 (1976-10-01), Arseneau
patent: 4060730 (1977-11-01), Zioni et al.

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