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An Image Quality Indicator Design for Radioscopy and Tomography

  • T. A. Siewert
  • D. W. Fitting
  • D. A. Shepherd
  • M. W. Austin
  • C. N. McCowan
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

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.

Keywords

Copper Plate Radiation Transport Linear Attenuation Coefficient Film Radiograph Radiographic Projection 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    ASTM Standard E747–87, “Standard Test Method for Controlling Quality of Radiographic Testing Using Wire Penetrameters”, 1988 Annual Book of ASTM Standards, Volume 03.03, Nondestructive Testing, pp. 316–321 (1988)Google Scholar
  2. 2.
    ASTM Standard E1025–84, Standard Practice for Hole-Type Image Quality Indicators Used for Radiography, 1988 Annual Book of ASTM Standards, Volume 03.03, Nondestructive Testing, pp. 427–432 (1988)Google Scholar
  3. 3.
    D.E. Raeside, “Monte Carlo Principles and Applications”, Phys. Med. Biol., Vol. 21, No. 2, pp. 181–197 (1976)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • T. A. Siewert
    • 1
  • D. W. Fitting
    • 1
  • D. A. Shepherd
    • 1
  • M. W. Austin
    • 1
  • C. N. McCowan
    • 1
  1. 1.Fracture and Deformation DivisionNational Institute of Standards and TechnologyBoulderUSA

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