Laser generated ultrasound sources using polymer nanocomposites for high frequency metrology

Handle URI:
http://hdl.handle.net/10754/626813
Title:
Laser generated ultrasound sources using polymer nanocomposites for high frequency metrology
Authors:
Rajagopal, Srinath; Sainsbury, Toby; Treeby, Bradley; Cox, Ben
Abstract:
Accurate characterisation of ultrasound fields generated by diagnostic and therapeutic transducers is critical for patient safety. This requires hydrophones calibrated to a traceable standard. The existing implementation of the primary standard at the National Measurement Institutes, e.g., NPL and PTB, can provide accurate calibration to a maximum frequency of 40MHz. However, the increasing use of high frequencies for both imaging and therapy necessitates calibrations to frequencies well beyond this range. For this to be possible, a source of high amplitude, broadband, quasi-planar and stable ultrasound fields is required. This is difficult to achieve using conventional piezoelectric sources, but laser generated ultrasound is a promising technique in this regard. In this study various polymer-carbon nanotube nanocomposites (PNC) were fabricated and tested for their suitability for such an application.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC)
Citation:
Rajagopal S, Sainsbury T, Treeby B, Cox B (2017) Laser generated ultrasound sources using polymer nanocomposites for high frequency metrology. 2017 IEEE International Ultrasonics Symposium (IUS). Available: http://dx.doi.org/10.1109/ULTSYM.2017.8091730.
Publisher:
IEEE
Journal:
2017 IEEE International Ultrasonics Symposium (IUS)
Conference/Event name:
2017 IEEE International Ultrasonics Symposium, IUS 2017
Issue Date:
22-Nov-2017
DOI:
10.1109/ULTSYM.2017.8091730
Type:
Presentation
Additional Links:
http://ieeexplore.ieee.org/document/8091730/
Appears in Collections:
Physical Sciences and Engineering (PSE) Division; KAUST Catalysis Center (KCC); Presentations

Full metadata record

DC FieldValue Language
dc.contributor.authorRajagopal, Srinathen
dc.contributor.authorSainsbury, Tobyen
dc.contributor.authorTreeby, Bradleyen
dc.contributor.authorCox, Benen
dc.date.accessioned2018-01-15T07:54:25Z-
dc.date.available2018-01-15T07:54:25Z-
dc.date.issued2017-11-22en
dc.identifier.citationRajagopal S, Sainsbury T, Treeby B, Cox B (2017) Laser generated ultrasound sources using polymer nanocomposites for high frequency metrology. 2017 IEEE International Ultrasonics Symposium (IUS). Available: http://dx.doi.org/10.1109/ULTSYM.2017.8091730.en
dc.identifier.doi10.1109/ULTSYM.2017.8091730en
dc.identifier.urihttp://hdl.handle.net/10754/626813-
dc.description.abstractAccurate characterisation of ultrasound fields generated by diagnostic and therapeutic transducers is critical for patient safety. This requires hydrophones calibrated to a traceable standard. The existing implementation of the primary standard at the National Measurement Institutes, e.g., NPL and PTB, can provide accurate calibration to a maximum frequency of 40MHz. However, the increasing use of high frequencies for both imaging and therapy necessitates calibrations to frequencies well beyond this range. For this to be possible, a source of high amplitude, broadband, quasi-planar and stable ultrasound fields is required. This is difficult to achieve using conventional piezoelectric sources, but laser generated ultrasound is a promising technique in this regard. In this study various polymer-carbon nanotube nanocomposites (PNC) were fabricated and tested for their suitability for such an application.en
dc.publisherIEEEen
dc.relation.urlhttp://ieeexplore.ieee.org/document/8091730/en
dc.rightsArchived with thanks to 2017 IEEE International Ultrasonics Symposium (IUS)en
dc.titleLaser generated ultrasound sources using polymer nanocomposites for high frequency metrologyen
dc.typePresentationen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.identifier.journal2017 IEEE International Ultrasonics Symposium (IUS)en
dc.conference.date2017-09-06 to 2017-09-09en
dc.conference.name2017 IEEE International Ultrasonics Symposium, IUS 2017en
dc.conference.locationWashington, DC, USAen
dc.contributor.institutionUltrasound and Underwater Acoustics, National Physical Laboratory, Teddington, , United Kingdomen
dc.contributor.institutionDepartment of Medical Physics and Biomedical Engineering, University College London, London, , United Kingdomen
kaust.authorSainsbury, Tobyen
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