TY - JOUR
T1 - Ultrasonic Heating Distribution in Lossy Cylinders and Spheres
AU - Longley, Lester A.
AU - O'BRIEN, William D.
PY - 1982/3
Y1 - 1982/3
N2 - The distribution of heat generation by viscous loss in infinitely long cylinders and spheres is estimated, based on the lossless acoustic wave distributions resulting from an incident plane wave. The characteristics of the objects are typical of tissue, while the lossless surrounding medium is similar to water. Impedance mismatches of up to 20 percent are considered for 1 < ka < 40. Plots of typical heat generation distributions are presented, and apparent trends are summarized. The greatest spatial nonuniformity and highest peaks of heat generation were found for maximum ka and impedance mismatch.
AB - The distribution of heat generation by viscous loss in infinitely long cylinders and spheres is estimated, based on the lossless acoustic wave distributions resulting from an incident plane wave. The characteristics of the objects are typical of tissue, while the lossless surrounding medium is similar to water. Impedance mismatches of up to 20 percent are considered for 1 < ka < 40. Plots of typical heat generation distributions are presented, and apparent trends are summarized. The greatest spatial nonuniformity and highest peaks of heat generation were found for maximum ka and impedance mismatch.
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U2 - 10.1109/T-SU.1982.31310
DO - 10.1109/T-SU.1982.31310
M3 - Article
AN - SCOPUS:0020102441
VL - 29
SP - 69
EP - 77
JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
SN - 0885-3010
IS - 2
ER -