Collimator and detector for computed tomography systems

Details Collimator and detector for computed tomography systems Collimator and detector for computed tomography systems

1998-06-22

2000-10-17

Porta, David P.

X-ray or gamma ray systems or devices

Beam control

Collimator

378207, G21K 102

Patent

active

061343013

ABSTRACT:
The present invention, in one form, is a scatter collimator for a computed tomography system including an x-ray source. The scatter collimator is positioned between a detector array and an object to be imaged. The scatter collimator includes a housing, a plurality of attenuating blades and a plurality of attenuating wires. The blades and wires are mounted to the housing, and oriented substantially perpendicular to each other. Particularly, the blades and wires form a two-dimensional shielding grid. The blades also are oriented so that they are radially and focally aligned with the x-ray source. A detector element of the detector array is secured to the housing so that the blades and wires are between the detector element and the x-ray source. The detector element, in one form, includes a scintillation element which is coated with a light-retaining material.

REFERENCES:
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patent: 4905717 (1990-03-01), Taylor et al.
patent: 5357553 (1994-10-01), Ferlic et al.
patent: 5799057 (1998-08-01), Hoffman et al.

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