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Ultrasonic Tomography of Objects with Non-Planar Boundaries

R.Kazys, L.Mazeika, E.Jasiuniene
Kaunas University of Technology, Ultrasound Institute
Studentu 50, Kaunas 3031, Lithuania, ulab@tef.ktu.lt

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Introduction

Tomographic approach

Reconstruction of wave fronts

Tomography with varying arc-projections

Experimental investigations

References

  1. Kak A. C., Stanley M. Principles of computerised tomographic imaging // New York: IEEE Press. 1988.
  2. Jasiūnienė E., Mažeika L. Reconstruction of ultrasonic wavefronts from the field of circular transducer // Ultragarsas. 1997. Nr.1 (27). P. 11-15.
  3. Jasiūnienė E., Mažeika L. Transformation of ultrasonic wavefronts on the boundary liquid/solid // Ultragarsas. 1997. Nr.2 (28). P. 12-16.
  4. Kažys R., Mažeika L., Jasiūnienė E. Application of ultrasound reflection tomography for non-destructive evaluation of objects with a complex geometry // J. Acoust. Soc. Am. 1999. Vol. 105 No.2. (2). P. 1360.
  5. Harris G. R. Transient field of a baffled planar piston having an arbitrary vibration amplitude distribution // J. Acoust. Soc. Am. 1981. Vol. 70 (1). P. 186-204
  6. Jasiūnienė E., Mažeika L. The modified method for simulation of ultrasonic fields of disk shaped transducer // Ultragarsas. 1999. Nr.3 (33). P. 33-37.
  7. Mažeika L., Kažys R.-J., Jasiūnienė E. Ultrasonic reflection tomography of the objects with non-planar boundaries // Bollettino di Geofisica teorica ed applicata. (An International Journal of Earth Sciences). Trieste. 1999. Vol. 40. No. 1. P. 112.

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