Tests of the accuracy of a data reduction method for determination of acoustic backscatter coefficients
作者:
Michael F. Insana,
Ernest L. Madsen,
Timothy J. Hall,
James A. Zagzebski,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1986)
卷期:
Volume 79,
issue 5
页码: 1230-1236
ISSN:0001-4966
年代: 1986
DOI:10.1121/1.393702
出版商: Acoustical Society of America
关键词: BACKSCATTERING;ULTRASONIC WAVES;TRANSDUCERS;DATA ANALYSIS
数据来源: AIP
摘要:
The accuracy of a new method for measuring ultrasonic backscatter coefficients was tested, using narrow‐band pulses and well‐defined media having scatterers randomly distributed in space. Experimentally determined values agree very well with theoretical values for wide ranges of experimental parameters, these ranges being applicable in measurements made on human soft tissues. An important outcome is that the method yields accurate results for scattering media positioned anywhere from the nearfield through the farfield of the nonfocused transducers employed. In addition, backscatter coefficients can be determined for a broad range of gate durations.
点击下载:
PDF
(930KB)
返 回