Annotation
Phenomena that accompany focusing of powerful ultrasonic beams have been reviewed. А possibility to increase the radiation force and to contract the region of its localization in а nonlinear focusing operation has been shown. А method has been proposed to produce shock fronts in the focus due to the synthesis of а special initial profile which enaЫes the wave energy to Ье transported with almost no losses and to organize its local liberation in the focus bу "switching on" nonlinear absorption. А theory has been developed of а new higbly sensitive diagnostic method based upon remote excitation of low-frequency shear waves in soft biological tissues Ьу means of powerful modulated ultrasound.
Rissian citation:
О.В. Руденко.
Мощный фокусированный ультразвук: нелинейные эффекты, возбуждение сдвиговых волн и медицинская диагностика. Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 1996. № 6. С. 16.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
О.V. Rudenko
Department of Acoustics
Department of Acoustics