Music-of-Light Stethoscope: A Demonstration of the Photoacoustic Effect

Autor/inn/en	Nikitichev, D. I.; Xia, W.; Hill, E.; Mosse, C. A.; Perkins, T.; Konyn, K.; Ourselin, S.; Desjardins, A. E.; Vercauteren, T.
Titel	Music-of-Light Stethoscope: A Demonstration of the Photoacoustic Effect
Quelle	In: Physics Education, 51 (2016) 4, Artikel 045015 (9 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-9120
DOI	10.1088/0031-9120/51/4/045015
Schlagwörter	Demonstrations (Educational); Science Equipment; Science Experiments; Light; Radiation Biology; Music; Science Activities; Acoustics; Pretesting; Scientific Principles; Scientific Concepts; Foreign Countries; United Kingdom (London) + Suchen Sie Ihr Suchwort? Demonstrationsexperiment; Demonstrationsmodell; Demonstrationsunterricht; Licht; Radiobiologie; Musik; Akustik; Vortest; Ausland
Abstract	In this paper we present a system aimed at demonstrating the photoacoustic (PA) effect for educational purposes. PA imaging is a hybrid imaging modality that requires no contrast agent and has a great potential for spine and brain lesion characterisation, breast cancer and blood flow monitoring notably in the context of fetal surgery. It relies on combining light excitation with ultrasound reception. Our brief was to present and explain PA imaging in a public-friendly way suitable for a variety of ages and backgrounds. We developed a simple, accessible demonstration unit using readily available materials. We used a modulated light emitting diode (LED) torch and an electronic stethoscope. The output of a music player was used for light modulation and the chest piece of the stethoscope covered by a black tape was used as an absorbing target and an enclosed chamber. This demonstration unit was presented to the public at the Bloomsbury Festival "On Light" in October 2015. Our stall was visited by over 100 people of varying ages. Twenty families returned in-depth evaluation questionnaires, which show that our explanations of the photoacoustic effect were well understood. Their interest in biomedical engineering was increased. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01