Magazine Article

Edge Phantom Measures Sharpness of X-Ray Detectors

TBMG-6594

01/01/2010

Abstract
Content

Digital radiography makes use of Xray detectors that yield a radiographic image of the object or patient between the X-ray source and the detector. Tools have been developed to assess the image quality characteristics of radiation images. One tool is an edge phantom, placed between source and detector, to assess the sharpness of the radiation image obtained. The edge-like, spatial step-response of the system resulting from a sudden change in irradiation level, invoked by the phantom, can be used to calculate the modulation transfer function (MTF) in a particular direction. In this way, the sharpness of the detector can be assessed.

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Citation
"Edge Phantom Measures Sharpness of X-Ray Detectors," Mobility Engineering, January 1, 2010.
Additional Details
Publisher
Published
Jan 1, 2010
Product Code
TBMG-6594
Content Type
Magazine Article
Language
English