NDLI: Micro-moulded randomised piezocomposites for high frequency ultrasound imaging

Content Provider	IEEE Xplore Digital Library
Author	Jiang, Y. Demore, C.E.M. Meggs, C. Dunare, C. Stevenson, T. Bamber, J. Cochran, S. Button, T.W.
Copyright Year	2012
Description	Author affiliation: Sch. of Metall. & Mater., Univ. of Birmingham, Birmingham, UK (Jiang, Y.; Meggs, C.; Button, T.W.) \|\| Inst. for Med. Sci. & Technol., Univ. of Dundee, Dundee, UK (Demore, C.E.M.; Cochran, S.) \|\| Scottish Microelectron. Centre, Univ. of Edinburgh, Edinburgh, UK (Dunare, C.; Stevenson, T.; Bamber, J.)
Abstract	1-3 piezocomposites that can operate at over 30 MHz are in demand to improve spatial resolution on a sub-millimetre level for biomedical ultrasound imaging applications. However, the fabrication of such materials remains a challenge as ultrafine dimensions are required in conventional composite designs. We have previously reported the design of randomised composites to eliminate coupling to lateral modes and to relax overall dimensional constraints. In this work, practical fabrication of composites based on these designs has been realised by using a novel micro-moulding approach combining gel casting with soft lithography. Impedance spectra of randomised composites confirm their advantage for suppressing spurious modes. Pulse-echo responses of two completed transducers operating at 30 and 70 MHz have demonstrated their functional performance.
Starting Page	1
Ending Page	4
File Size	479700
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0045
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transducers Ceramics Fabrication Resonant frequency Educational institutions Impedance Acoustics high-frequency ultrasound micro-moulding 1–3 composite
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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