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Image Quality comparison of Digital Radiographic Systems for NDT

P. Willems, P. Soltani, B. Vaessen
Agfa NDT, Septestraat 27, B-2640 Mortsel, Belgium
Phone: 32-3-4442881, Fax: 32-3-4447655
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1. Introduction

2. Storage Phosphors (Computed Radiography)

3. Flat Panel Detectors

4. Image Quality

5. Resolution

Fig 3a: MTF Film vs. Digital systems 100kVp, Object 10mm, FFD=1000mm ,Focal spot Film=2mm, Digital=1mm Fig 3b: MTF Film vs. Digital systems 200kVp, Object 20mm, FFD=1000mm, Focal spot Film=2mm, Digital=1mm

6. Detective Quantum efficiency

7. Conclusion

References

  1. A. Workman and A.R. Cowen in Phys. Med. Biol. 38 (1993) pp. 1789
  2. W. Zhao et. al. , Med. Phys. 24 (12) , December 1997, pp. 1834, see fig. 10
  3. W. Zhao and J. Rowlands, Med. Phys. 24(12), December 1997, pp. 1819
  4. J. Siewerdsen, Ph. D. Thesis, Michigan 1998

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