<title>Optical properties of fiber tapers and their impact on the performance of a fiber optically coupled CCD x-ray imaging system</title>

Abstract

Optical properties of the fiber taper used in the fiberoptically coupled CCD x-ray imaging system will affect the image quality of the overall system significantly. In this paper, three important characteristics were studied: optical efficiency and its impact on SNR, contrast degradation caused by stray light, and spatial resolution loss (resulting from misalignment in corresponding pixels in cascaded components) when the fiber taper is coupled with another `pixel array' such as a CCD imager.