Method and apparatus for compensating non-uniform detector...

Details Method and apparatus for compensating non-uniform detector... Method and apparatus for compensating non-uniform detector...

2007-03-06

2007-03-06

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S901000

Reexamination Certificate

active

11230847

ABSTRACT:
A method for obtaining data includes scanning an object with radiation to collect projection data using an imaging system having a detector array with detector cells and a post-patient collimator, wherein the post-patient collimator has plates having non-uniform thicknesses. The method further includes applying a correction to the projection data to shift an effective center of at least some of the detector cells to compensate for the non-uniform thicknesses of the collimator plates.

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