Performance characterisation of a passive cavitation detector optimised for subharmonic periodic shock waves from acoustic cavitation in MHz and sub-MHz ultrasound

Johansen, K., Song, J. H. and Prentice, P. (2018) Performance characterisation of a passive cavitation detector optimised for subharmonic periodic shock waves from acoustic cavitation in MHz and sub-MHz ultrasound. Ultrasonics Sonochemistry, 43, pp. 146-155. (doi:10.1016/j.ultsonch.2018.01.007)

[img]
Preview
Text
154767.pdf - Published Version
Available under License Creative Commons Attribution.

1MB

Abstract

We describe the design, construction and characterisation of a broadband passive cavitation detector, with the specific aim of detecting low frequency components of periodic shock waves, with high sensitivity. A finite element model is used to guide selection of matching and backing layers for the shock wave passive cavitation detector (swPCD), and the performance is evaluated against a commercially available device. Validation of the model, and characterisation of the swPCD is achieved through experimental detection of laser-plasma bubble collapse shock waves. The final swPCD design is 20 dB more sensitive to the subharmonic component, from acoustic cavitation driven at 220 kHz, than the comparable commercial device. This work may be significant for monitoring cavitation in medical applications, where sensitive detection is critical, and higher frequencies are more readily absorbed by tissue.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Song, Dr Jae Hee and Johansen, Kristoffer and Prentice, Dr Paul
Authors: Johansen, K., Song, J. H., and Prentice, P.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Ultrasonics Sonochemistry
Publisher:Elsevier
ISSN:1350-4177
ISSN (Online):1873-2828
Published Online:10 January 2018
Copyright Holders:Copyright © 2018 Elsevier B.V.
First Published:First published in Ultrasonics Sonochemistry 43:146-155
Publisher Policy:Reproduced under a Creative Commons License

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
722331TheraCav - Harnessing Cavitation for TherapyPaul PrenticeEuropean Research Council (ERC)336189ENG - ENGINEERING SYSTEMS POWER & ENERGY