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Ultrasonic Backward Radiation on Randomly Rough Surface  

Kwon, Sung-D. (Department of Physics, Andong National University)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.25, no.1, 2005 , pp. 9-14 More about this Journal
Abstract
The angular dependence(profile) of backward radiated ultrasound was measured for glass specimens with random surface roughness using ultrasonic goniometer that ran changes the incident angle continuously. It was concluded that the roughened region had greater acoustic impedance than the unperturbed region. The comparison of backward radiations showed that the amplitude of peak and the area of radiation profile were increased with surface roughness. It was suggested from the sensitive dependence of the profile area that the profile of backward radiation could be applied to in the nondestructive evaluation of sulfate region. Inclined C-scan technique with the transducer inclined at Rayleigh angle showed the reverse of luminosity and the high signal to noise ratio so that it provided high resolution.
Keywords
ultrasound; backward Radiation; surface roughness; SAW; C-scan;
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  • Reference
1 Ultrasonic reflection of a bounded beam at Rayleigh and critical angle for a plane liquid-solid interface /
[ Neubauer, W.G. ] / J. Appl. Phys.   DOI
2 Unified theory of Rayleigh angle phenomena for acoustic beams at liquid-solid interfaces /
[ Bertoni, H.L.;Tarmir, T. ] / Appl. Phys.   DOI
3 Measurements of backscattered leaky Lamb waves in composite plates /
[ Nagy, P.B.;Jungman A.;Adler, L. ] / Materials Evaluation
4 Measurements of backscattered leaky Lamb waves in plates /
[ de billy, M.;Adler L.;Quentin, G. ] / J. Acoust. Soc. Am.   DOI
5 Back reflection of ultrasonic wave obliquely incident to solid surface in water /
[ Sasaki, S. ] / Jpn. J. Appl. Phys.   DOI
6 Back reflection of ultrasonic waves from a liquid-solid interface /
[ Norris, Andrew N. ] / J. Acoust. Soc. Am.   DOI
7 The back reflection effects of an ultrasonic beam with a Gaussian profile at the liquid-solid interface /
[ Kim, H.C.;Kwon, S.D. ] / J. Acoust. Soc. Am.   DOI
8 On the origin of Increased backward radiation from a liquid-solid interface at the Rayleigh angle /
[ Nagy, P.B.;Adler, L. ] / J. Acoust. Soc. Am.   DOI
9 Rayleigh angle backscattering of ultrasonic beam from single crystal nickel in 111 and 110 planes /
[ Adler, L.;Wang, S.W.;Bolland, K.; de Billy, M.;Quentin, G. ] / J. Acoust. Soc. Am.   DOI
10 Evaluation of an imperfect Layered Substrate Using Backscattering Technique;Review of Progress Quantitative Nondestructive Evaluation, Vol. 13B /
[ Kwon, S.D.;Ko R.T.;Adler, L.;Thompson D.O.(ed.);Chimenti, D.E.(ed.) ] /
11 Ultrasonic Testing /
[ Szilard. J.(ed.) ] /
12 Rayleigh and Lamb Waves /
[ Viktorov, I.A. ] /
13 The dispersion of acoustic surface waves by velocity gradients /
[ Kwon, S.D.;Kim, H.C. ] / J. Appl. Phys.
14 Ultrasonic Backscattering at the Rayleigh Angle on Water-Rough Glass Boundary /
[ 권성덕;이승희 ] / 계명대학교 기초과학 연구논문