On Replacement of Radiographic Film with Digital Detectors

Authors: Zhukov A.D., Galkin D.I., Ivanayskiy E.A. Published: 09.02.2018
Published in issue: #1(118)/2018  

DOI: 10.18698/0236-3941-2018-1-47-56

Category: Mechanical Engineering and Machine Science | Chapter: Manufacturing Engineering  
Keywords: digital radiography, spatial basic resolution, duplex wire image quality identificator, unsharpness, contrast ratio, replacement of traditional radiography with digital detectors

The article introduces a new approach to traditional radiography: we suggest replacing it with digital detectors. According to the experimental data, the most reliable and the easiest way to do it is to use spatial basic resolution (SRb) as an image quality parameter. Findings of the research show that the greater the value of SRb, the less influence on the quality of the resulting image is caused by such factors as imperfection of technology and controls, and the closer the visible image to the radiation analogue. We suggest using SRb parameter at specific object testing because the digital detector image has the same image quality and the same data content as provided by traditional ragiographic method at the X-ray film. Novelty of this research work is that this replacement is based on the assessment of SRb value, which could be defined by duplex wire imagequality parameter used during the test. We suggest using it when monitoring a particular object, since the resulting digital image is as informative (as its analog on a film). These techniques will help not only to decrease testing time and reduce economic costs of testing but also to increase and improve image quality and safety of testing operations


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