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Characterization of HIFU transducers designed for sonochemistry application: Cavitation distribution and quantification
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SYSNO ASEP 0336679 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Characterization of HIFU transducers designed for sonochemistry application: Cavitation distribution and quantification Author(s) Hallez, L. (FR)
Touyeraz, F. (FR)
Hihn, J. Y. (FR)
Klíma, Jiří (UFCH-W) RID
Guey, J.-L. (FR)
Spajer, M. (FR)
Bailly, Y. (FR)Source Title Ultrasonics. - : Elsevier - ISSN 0041-624X
Roč. 50, č. 2 (2010), s. 310-317Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords HIFU ; acoustic cavitation ; MBSCL threshold ; sonoreactors Subject RIV CG - Electrochemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000271779500036 DOI 10.1016/j.ultras.2009.09.011 Annotation Acoustic field distribution was determined in HIFU sonoreactors as well as localization of cavitation activity by crossing different techniques: modeling, hydrophone measurements, laser tomography and SCL measurements. Particular care was taken with quanti. cation of this last technique by pixels or photon counting. Cavitation bubbles generated by HIFU are mainly located on the outer layer of the propagation cone in the post-focal zone. Greatest acoustic activity is not located at the geometrical focal, but corresponds to a high concentration of bubbles zone. On the contrary, the main sonochemical activity shifts slightly toward the transducer, whereas quenching of inertial cavitation is observed directly at the focal. Finally, SCL thresholds have been determined. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
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