eprintid: 10068083
rev_number: 22
eprint_status: archive
userid: 608
dir: disk0/10/06/80/83
datestamp: 2019-02-18 12:46:09
lastmod: 2021-10-13 22:54:27
status_changed: 2019-02-18 12:46:09
type: proceedings_section
metadata_visibility: show
creators_name: Rajagopal, S
creators_name: Treeby, BE
creators_name: Cox, BT
title: Effect of Backing on Carbon-Polymer Nanocomposite Sources for Laser Generation of Broadband Ultrasound Pulses
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F42
keywords: hydrophone
,
calibration
,
nanocomposites
,
photoacoustics
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Light absorbing polymer nanocomposites have been widely investigated as a source of broadband and high amplitude ultrasound generated via pulsed laser excitation. Biomedical applications of such sources include both imaging and ablative therapies. Fabrication of light absorbing nanocomposite sources has mostly involved elaborate chemistry. Here, a nanocomposite composed of multi-walled carbon nanotubes mechanically dispersed in polydimethylsiloxane polymer is used. The nanocomposite film was backed on optically clear polydimethylsiloxane and laboratory grade glass slides. The two backed sources were investigated using two lasers whose full-width half maximum durations were 2.6 and 4.0 ns. It was found that the characteristics of the acoustic field generated from the nanocomposite source showed a significant dependence on the backing when the stress confinement criterion is not satisfied.
date: 2018-12-20
date_type: published
publisher: IEEE
official_url: https://doi.org/10.1109/ULTSYM.2018.8579784
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1629633
doi: 10.1109/ULTSYM.2018.8579784
isbn_13: 9781538634257
lyricists_name: Cox, Benjamin
lyricists_name: Treeby, Bradley
lyricists_id: BTCOX21
lyricists_id: BTREE66
actors_name: Novi, Maya
actors_id: MNOVI52
actors_role: owner
full_text_status: public
publication: IEEE International Ultrasonics Symposium, IUS
event_title: IEEE International Ultrasonics Symposium (IUS), 22-25 October 2018, Kobe, Japan
issn: 1948-5727
book_title: 2018 IEEE International Ultrasonics Symposium (IUS)
citation:        Rajagopal, S;    Treeby, BE;    Cox, BT;      (2018)    Effect of Backing on Carbon-Polymer Nanocomposite Sources for Laser Generation of Broadband Ultrasound Pulses.                     In:  2018 IEEE International Ultrasonics Symposium (IUS).    IEEE       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10068083/7/Rajagopal_2018_Rajagopal_IEEE_backing.pdf