A 5 mm × 5 mm Square, Aluminum Lens Based Histotripsy Transducer: Reaching the Endoscopic Form Factor

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Resumen

A 5 mm × 5 mm square histotripsy transducer was built using a 1/4wavelength matching-layer coated aluminum lens bonded to an air-backed 1-3 piezoelectric composite with a 45% volume fraction of PZT5A and a 5 MHz resonance. With a focal length of 5 mm the transducer was found to have a steady-state negative pressure trend of 8.3 MPa/100 V at 6.5 MHz with a -3 dB beam width ranging from 0.107 mm to 0.118 mm. Beam length was measured to be 0.871 mm. The addition of a series tuning element allowed increased power delivery to the transducer, and a sustained cavitation bubble cloud was observed when driven at 6.5 MHz with a 350 V peak-to-peak drive voltage, 15 cycle pulse at 1 kHz PRF.

Idioma originalEnglish
Título de la publicación alojada2018 IEEE International Ultrasonics Symposium, IUS 2018
EditorialIEEE Computer Society
ISBN (versión digital)9781538634257
DOI
EstadoPublished - dic. 17 2018
Evento2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan
Duración: oct. 22 2018oct. 25 2018

Serie de la publicación

NombreIEEE International Ultrasonics Symposium, IUS
Volumen2018-October
ISSN (versión impresa)1948-5719
ISSN (versión digital)1948-5727

Conference

Conference2018 IEEE International Ultrasonics Symposium, IUS 2018
País/TerritorioJapan
CiudadKobe
Período10/22/1810/25/18

Nota bibliográfica

Publisher Copyright:
© 2018 IEEE.

ASJC Scopus Subject Areas

  • Acoustics and Ultrasonics

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