Modeling of Shock Wave Generated from a Strong Focused Ultrasound Transducer

被引：9

作者：

Chen Tao ^{[1
,3
]}

Qiu Yuan-Yuan ^{[2
]}

Fan Ting-Bo ^{[3
]}

Zhang Dong ^{[1
]}

机构：

[1] Nanjing Univ, Key Lab Modern Acoust, Nanjing 210093, Jiangsu, Peoples R China

[2] Nantong Univ, Sch Elect Informat, Nantong 226019, Peoples R China

[3] Jiangsu Prov Inst Med Equipment Testing, Nanjing 210012, Jiangsu, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2013年 / 30卷 / 07期

基金：

中国国家自然科学基金;

关键词：

AMPLITUDE SOUND BEAMS; CONSERVATION-LAWS; TUMORS;

D O I：

10.1088/0256-307X/30/7/074302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A combined time and frequency domain method is developed for the calculation of a shock wave induced by a strong focused ultrasound transducer in the oblate spheroidal coordinate system. The spheroidal beam equation (SBE) is utilized to describe the nonlinear sound propagation; the diffraction and attenuation effects are calculated in the frequency-domain, while the nonlinear effect is calculated in the time-domain. Compared with the traditional frequency-domain method, this method could calculate the shock wave effectively without oscillation at the shock front and with less computation time. When the harmonic number is 200, the computation time by this method is about 1/16 of that used by the traditional frequency-domain method.

引用

页数：4

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