ACOUSTIC SHEAR-WAVE IMAGING USING AN ANNULAR LENS

被引：1
|
作者：
ZHANG, D
CREAN, GM
机构：
[1] National Microelectronics Research Centre, Lee Maltings, Prospect Row, Cork
来源：
APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 03期
关键词：
D O I：
10.1063/1.108945
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Annular lenses for acoustic shear wave imaging are investigated in this letter. Both theoretical analysis of the distribution of the focused acoustic field in Al2O3 and experimental results show that the longitudinal wave field in a solid will be seriously suppressed by a small absorbing disk at the center of the lens which does not significantly effect the shear wave field in the material. Internal material images are also presented showing that an annular lens is very suitable for obtaining a high quality shear wave image.
引用
收藏
页码：318 / 320
页数：3
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