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On the nonlinear effects in focused ultrasound beams with frequency power law attenuation

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On the nonlinear effects in focused ultrasound beams with frequency power law attenuation

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dc.contributor.author Jimenez, Noe es_ES
dc.contributor.author Redondo, Javier es_ES
dc.contributor.author Sánchez Morcillo, Víctor José es_ES
dc.contributor.author Iglesias, Pablo C. es_ES
dc.contributor.author Camarena Femenia, Francisco es_ES
dc.date.accessioned 2015-10-30T11:52:10Z
dc.date.available 2015-10-30T11:52:10Z
dc.date.issued 2015
dc.identifier.issn 1875-3892
dc.identifier.uri http://hdl.handle.net/10251/56787
dc.description This article belongs to a special issue: 43rd Annual UIA Symposium 23—25 April 2014 CSIC Madrid, Spain Edited By Margaret Lucas and Enrique Riera es_ES
dc.description.abstract [EN] When finite amplitude ultrasound propagation is considered, changes in spatial features of focused ultrasound beams can be observed. These nonlinear effects typically appear in thermoviscous fluids as focal displacements, beam-width variations or gain changes. However, in soft-tissue media, the frequency dependence of the attenuation doesn t obey a squared law. In this way, these complex media response leads to weak dispersion that prevents the cumulative processes of energy transfer to higher harmonics. In this work we explore the influence of different frequency power law attenuation responses and its influence on the self-defocusing effects in focused ultrasound beams. Thus, we numerically explore the spatial field distributions produced by low-Fresnel number devices and High Intensity Focused Ultrasound (HIFU) radiating trough different soft-tissue media. es_ES
dc.description.sponsorship The work was supported by Spanish Ministry of Science and Innovation through project FIS2011-29731-C02-01. N. Jiménez acknowledges financial support from the Universitat Politècnica de València (Spain) through the FPI2011 PhD grant.
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MICINN/FIS2011-29731-C02-01 es_ES
dc.relation UPV/FPI-2011 es_ES
dc.relation.ispartof Physics Procedia es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Nonlinear acoustics es_ES
dc.subject Relaxation es_ES
dc.subject Attenuation es_ES
dc.subject Dispersion es_ES
dc.subject Frequency power-law es_ES
dc.subject Soft-tissue es_ES
dc.subject FDTD es_ES
dc.subject.classification FISICA APLICADA es_ES
dc.title On the nonlinear effects in focused ultrasound beams with frequency power law attenuation es_ES
dc.type Artículo es_ES
dc.type Comunicación en congreso
dc.identifier.doi 10.1016/j.phpro.2015.03.008
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Física Aplicada - Departament de Física Aplicada es_ES
dc.description.bibliographicCitation Jimenez, N.; Redondo, J.; Sánchez Morcillo, VJ.; Iglesias, PC.; Camarena Femenia, F. (2015). On the nonlinear effects in focused ultrasound beams with frequency power law attenuation. Physics Procedia. 63:47-53. doi:10.1016/j.phpro.2015.03.008 es_ES
dc.description.accrualMethod S es_ES
dc.relation.conferencename 43rd Annual Symposium of the Ultrasonic Industry Association
dc.relation.conferencedate April 23-25, 2014
dc.relation.conferenceplace Madrid, Spain
dc.relation.publisherversion http://dx.doi.org/10.1016/j.phpro.2015.03.008 es_ES
dc.description.upvformatpinicio 47 es_ES
dc.description.upvformatpfin 53 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 63 es_ES
dc.relation.senia 292059 es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder Universitat Politècnica de València


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