An Image Quality Indicator Design for Radioscopy and Tomography
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
The use of radioscopy (real-time radiography in which film is replaced by an electronic imaging system) is limited by the availability of appropriate image quality indicators (IQIs). Available indicators (plaque and wire type [1,21) were designed for radiographic imaging where the source, imaging system (film), and specimen are stationary and the IQI plane is oriented normal to the flux of radiation. The improvement in productivity made possible by rotating the object during inspection in real-time is inhibited by the lack of an indicator that evaluates image quality as the specimen (and the associated IQI’s) are rotated.