1. C.M. Teller and C.M. Fortunko, “NDE Requirements for Thick Marine Composites,” elsewhere in these Proceedings.
2. J-H Mo, A.L Robinson, D.W. Fitting, F.L Terry, Jr., and P.L. Carson, “Micromachining for Improvement of Integrated Ultrasonic Transducer Sensitivity,” IEEE Trans. Electron Devices, ED-37 (1), 134–140 (1990).
3. P.H. Rogers and A.L Van Buren, “An exact expression for the Lommel Diffraction Correction Integral,” J. Acoust. Soc. Am., 55 (4), 724–728 (1974).
4. W. Sachse and N.N. Hsu, “Ultrasonic Transducers for Materials Testing and Their Characterization,” chapter 4 of Physical Acoustics, Volume XIV, W.P. Mason and R.N. Thurston, eds. (Academic Press, New York) 1979.
5. Dr. Gary Petersen, Ritec, Inc., private communication.