J. Phys. Colloques
Volume 51, Numéro C2, Février 1990Premier Congrès Français d'Acoustique / First French Conference on Acoustics
|Page(s)||C2-311 - C2-314|
J. Phys. Colloques 51 (1990) C2-311-C2-314
ABSORPTION OF ULTRASOUND IN HUMAN BLOODG. GOPALA KRISHNA, A.K.W. ANWAR ALI et A. AHMAD
Biophysics Laboratory, Department of Physics, Nizam College, Hyderabad, 500001, India
Ultrasonic absorption is determined in human blood and its constituents such as RBC, hemoglobin and plasma using ultrasonic interferometer technique at the frequency of 3 MHz. The study suggests that when an acoustic wave passing through a blood sample it encounters three different media namely plasma, cell wall and hemoglobin. These media have their own acoustic impedance values. The acoustic power loss is dependent upon the mismatching of the acoustic impedance values of these three media.