FILMLESS RADIOGRAPHY

Authors
  1. Finlayson, R.D.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
Conventional "film" radiography is used extensively in the Canadian Forces to inspect aircraft structures for defects. However, the technique suffers because films are expensive and a great deal of time is required to process the film. The developed film must, as with all radiographic techniques, then be examined by an inspector for a decision as to the serviceability of the inspected structure. This paper will examine several Real Time Radiography (RTR) systems under investigation at DREP that eliminate the need for film. These systems allow much faster viewing of the images produced from x-ray exposures by displaying the radiographic images in real-time. A digitized image can then be "manipulated" electronically to enhance areas where defects are suspected. The systems under investigation are: image-intensifier imaging, using a fluorescent screen and a video camera for detection; COMSCAN, using a solid state detector array to detect backscatter radiation; and "in-motion" radiography, using a photodiode array for detection.
Keywords
COMSCAN;FILMLESS RADIOGRAPHY
Report Number
DREP-TM-94-04 — Technical Memorandum
Date of publication
01 Jan 1994
Number of Pages
19
DSTKIM No
94-03375
CANDIS No
142642
Format(s):
Hardcopy;Originator's fiche received by DSIS

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