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How to choose a square root in calculating the reflection coefficient for a lossy liquid–lossless isotropic solid interface

 

作者: J. M. Claeys,   O. Leroy,  

 

期刊: The Journal of the Acoustical Society of America  （AIP Available online 1980）
卷期: Volume 68, issue 6  

页码: 1894-1896

 

ISSN:0001-4966

 

年代: 1980

 

DOI:10.1121/1.385183

 

出版商: Acoustical Society of America

 

数据来源: AIP

 

摘要:

To calculate the reflection coefficient for an ultrasonic wave at a lossy liquid–lossless solid interface, we need a uniquely defined square root. This is made possible by noting that the wave is not absorbed in the direction of propagation into the solid. Using this right square root, we find a reflection coefficient which is always smaller than unity.

 

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