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Science Newsletter of the Faculty fo Physics
This is a new bulletin, which, as we hope, will bring fresh, updated information on scientific news, research activities, and related events in the life of our department to our staff members, undegraduate and graduate students, postdocs, collaborators and partners. We greatly hope that this Science Newsletter will help us to find new partners in research and shorten the way from fundamental research to applications and innovations, from our fundamental discoveries to their successful implementations in not too distant future.
XIV National School-Seminar "Wave phenomena in inhomogeneous media"
The conference papers from the School-Seminar «Waves-2014» will be submitted for publishing in the Memoirs of the Faculty of Physics journal.
| Journals » Memoirs of the Faculty of Physics » Issues » 2014 » # 5 |
Application of ultrasound phased arrays with different number of elements for irradiation of tissue behind the ribs
S.A. Ilyin, L.R. Gavrilov, V.A. Khokhlova
Department of Acoustics, Faculty of Physics, M.V.Lomonosov Moscow State University. Moscow, 119991, Russia, Leninskie Gory str., 1, build. 2In many current medical applications of high intensity focused ultrasound it is necessary to take into account additional energy losses due to the presence of natural obstacles like ribs. In this study the feasibility of using phased arrays with different number of elements to reduce overheating ribs when focusing through the intercostal spaces was studied. Geometric approach to switch off the array elements that are in the shadow of ribs was used to minimize the exposure of the ribs to the ultrasound energy. The effect of the number of the array elements on the value of the power losses of the focused beam at the ribs and the level of intensity in the focal region behind the ribs was studied.
| URL: | http://uzmu.phys.sunmarket.com/abstract/2014/5/145342 |
| PACS: | 43.38.+n Transduction; acoustical devices for the generation and reproduction of sound |
| UDC: | 534.2 |
| Цитата: | С.А. Ильин, Л.Р. Гаврилов, В.А. Хохлова. Особенности применения ультразвуковых фазированных решеток с различным количеством элементов при облучении тканей в присутствии ребер // Учен. зап. физ. фак-та Моск. ун-та. 2014. № 5. 145342 |