Measurement of radical production as a result of cavitation in medical ultrasound fields

Gareth J. Price, Francis A. Duck, Megan Digby, William Holland, Tamsin Berryman

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

This paper describes the use of the terephthalate dosimeter to measure the threshold and extent of cavitation arising from medical ultrasound sources at high frequencies. Significant hydroxyl radical production was noted from a physiotherapy source and low level activity was also detected when using a pulsed, diagnostic type transducer system. The effect of sound intensity and the type of field is described. The possibility of using polymer degradation to monitor the cavitation is also discussed.

Original languageEnglish
Pages (from-to)165-171
Number of pages7
JournalUltrasonics Sonochemistry
Volume4
Issue number2
Early online date19 May 1996
DOIs
Publication statusPublished - Apr 1997

Keywords

  • Cavitation
  • Hydroxyl radicals
  • Radical trapping
  • Terephthalate dosimeter

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Acoustics and Ultrasonics

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