Effects of microbubble interaction on occurrence of subharmonics

S. Kanazawa, A. Tsuruoka, T. Sugiura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Microbubbles insonified by ultrasound show nonlinear oscillation and reflect waves including harmonic and subharmonic signals. Subharmonic imaging can be more useful, though occurrence conditions of subharmonics are not clarified enough. In this study, we investigated effects of microbubble interaction on occurrence of subharmonics. The interaction depends on the distance between two microbubbles and their radius ratios. For different values of these parameters, we numerically calculated the Rayleigh-Plesset equations with these interaction terms added and investigated occurrence conditions of subharmonics. Obtained results show that, by decreasing the distance between the bubbles and increasing the radius of one of the bubbles, the threshold of the pressure amplitude and the transmit frequency for generating subharmonics become lower.

Original languageEnglish
Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
Pages322-324
Number of pages3
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
Duration: 2013 Jul 212013 Jul 25

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2013 IEEE International Ultrasonics Symposium, IUS 2013
CountryCzech Republic
CityPrague
Period13/7/2113/7/25

Keywords

  • Bubble interaction
  • Microbubble
  • Subharmonic

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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  • Cite this

    Kanazawa, S., Tsuruoka, A., & Sugiura, T. (2013). Effects of microbubble interaction on occurrence of subharmonics. In 2013 IEEE International Ultrasonics Symposium, IUS 2013 (pp. 322-324). [6725305] (IEEE International Ultrasonics Symposium, IUS). https://doi.org/10.1109/ULTSYM.2013.0083