General Electric Company

Michael Thomas Mruzek

David Michael Hoffman

August O Englert

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.

Collimator and detector for computed tomography systems

A positive retraction mechanism for cryogenic thermal joints including deformable interfaces to separate joints which have cold welded utilizing a moveable enclosing sleeve and an actuating mechanism including the force of a compressed bellows to move a retraction flange into engagement with retraction rods which force the thermal joint apart through controlled movement of the retraction flange.

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East Troy, WI, United States of America

Michael Thomas Mruzek