Ge Betz, Inc.

Vamishi Krishna Reddy Kommareddy

Thomas James Batzinger

Brian W Lasiuk

Michael Robert Hopple

Debasish Mishra

Manoharan Venugopal

Sivaramanivas Ramaswamy

Elizabeth Lockenberg Dixon

Rajashekar Venkatachalam

Nityanand Gopalika

A digital radiography imaging system for acquiring digital images of an object, and a method for transforming digital images into an absolute thickness map characterizing the object under inspection. The system includes a radiation source for directing radiation through a desired region of the object, and a radiation detector having a plurality of sensing elements for detecting radiation passing through the object. Numerical data generated from each sensing element is calibrated, for example by correcting for variations in radiation paths between the source and detector, by correcting for variations in the spatial frequency response (MTF) of the detector, by correcting for variations in the geometric profile of the object under inspection, and by correcting for material contained in and/or around the object. The calibrated data is processed in order to generate and display an absolute thickness map of the object. The calibration procedures are adapted for extracting a thickness map from both isotope sources and X-ray tube sources.

Converting a digital radiograph to an absolute thickness map

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Bengaluru, India

Vamishi Krishna Reddy Kommareddy