The effect of the imaging unit with non-uniform response on the reconstructed image in the CT system

Trends exist in the projections obtained in the imaging unit with non uniform response in the CT system The quality of the CT image reconstructed using above projections will descend This paper analyzes the reason causing the non uniform response in the imaging unit and the effect of non uniform response on the reconstructed image A method to correct non uniform response is presented and verified by means of experiment in this paper