Abstract
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.
Original language | English |
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Title of host publication | 2018 IEEE International Ultrasonics Symposium, IUS 2018 |
Publisher | IEEE Computer Society |
ISBN (Electronic) | 9781538634257 |
DOIs | |
Publication status | Published - Dec 17 2018 |
Event | 2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan Duration: Oct 22 2018 → Oct 25 2018 |
Publication series
Name | IEEE International Ultrasonics Symposium, IUS |
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Volume | 2018-October |
ISSN (Print) | 1948-5719 |
ISSN (Electronic) | 1948-5727 |
Conference
Conference | 2018 IEEE International Ultrasonics Symposium, IUS 2018 |
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Country/Territory | Japan |
City | Kobe |
Period | 10/22/18 → 10/25/18 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.
ASJC Scopus Subject Areas
- Acoustics and Ultrasonics