Imaging Plate Use for Radiographic Nondestructive Evaluation

Nondestructive testing requires that computed radiography imaging plates produce acceptable quality over a wide range of conditions. The imaging plate type determines the overall radiographic image quality and is a key factor in determining productivity. Image quality is heavily dependent upon the imaging plate design. Likewise, the number of use cycles that can be obtained is dependent upon the imaging plate durability and operating environment. This paper reviews the basic principles of storage phosphor imaging plates, and it explores the design contribution towards key quality parameters. Usage criteria and guidelines for optimum image quality and maximized overall use cycles will be discussed for various imaging plate types.

References
  1. Takahashi, K., Miyahara, J., Shibahara, Y., “Photostimulated Luminescence (PSL) and Color Centers in BaFX”Eu2+ (X=Cl, Br, I) Phosphors,” J. Electrochem. Soc., pp 1492 – 1494 (1985).
  2. White, B., “Imaging Plate Design and Use,” ASNT, Mashantucket, CT, July 22, 2013.
  3. White, B., “Digital Radiographic Imaging Plate Physical Properties,” ASNT, Las Vegas, NV, November 5, 2013.
  4. White, B., “Imaging Plate Background Lighting Conditions,” ASNT, Providence, RI, July 28, 2014.
  5. ASTM E2033 WK34936, “Standard Practice for Radiological Examination Using Computed Radiography,” ASTM International.
  6. ASTM E2445, “Standard Practice for Performance Evaluation and Long-Term Stability of Computed Radiography Systems,” ASTM International.
  7. ASTM E1647, “Standard Practice for Determining Contrast Sensitivity in Radiology,” ASTM International.
  8. ASTM E2446, “Standard Practice for Manufacturing Characterization of Computed Radiography Systems,” ASTM International.
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