Gamma camera having partial septas and moving septas for positro

Details Gamma camera having partial septas and moving septas for positro Gamma camera having partial septas and moving septas for positro

1995-10-02

1997-02-11

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

25036304, 2503631, G01T 1166

Patent

active

056023952

ABSTRACT:
A gamma camera for a Positron Emission Tomography (PET) system comprises a single, continvous scintillation crystal having an imaging surface, and a first layer of septa disposed along the imaging surface between the object and the imaging surface. A gap is provided between the imaging surface and the first layer of septa to allow non stray radiation to reach the imaging surface. The septa may be arranged to have a long axis disposed at an acute angle away from perpendicular to an axis of rotation or made to move in relation to the imaging surface of the scintillation crystal to reduce cold spots on the image. Multiple layers of septa may be provided.

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C. J. Thompson, . . . , The Effect of Collimation on Singles Rates in Multi-Slice PET, IEEE Transactions on Nuclear Science, vol. 36, No. 1, Feb., 1989, pp. 1072-1077.
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