Abstract
The purpose of this talk will be to discuss a method for characterizing HIFU fields where hydrophone measurements are made by reducing the electrical power input to the system until quasi‐linear field propagation conditions are achieved, and until the pressure levels are safe for the hydrophone used. Radiation force measurements of total power are then used to scale up the results. This allows for reliable measurements which do not damage the hydrophone, and avoids complications from involving the many harmonics which can be generated in water which are usually not so strongly present in tissue. Advantages and disadvantages of the method will be discussed.
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