Baki Karaboce

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In this study, temperature distribution inside a tissue - mimicking material induced by a HIFU (High Intensity Focused Ultrasound) transducer was investigated with two different methods. In first method T-type thermocouple (TC) temperature sensors and in second method, infrared (IR) camera system was used for determining the temperature distribution on the(More)
The temperature distribution produced by a HIFU (High Intensity Focused Ultrasound) transducer has been investigated by a set up using T type thermocouple temperature sensors in the automated scanning system. The temperature change and the temperature distribution due to applied ultrasound power have been characterized. The temperature measurements were(More)
Realization of temperature characterization on focused ultrasound treatment devices by using tissue-mimicking phantom systems (Tissue-Mimicking Material, TMM) is indispensible in pre-clinical studies. In this survey, in order to examine the viscous heating effect of thermocouples, temperature rise due to excitation of a HIFU transducer has been measured by(More)
HIFU (High Intensity Focused Ultrasound) transducers are attractive tools for cancer therapy. They must be used carefully for operator and patient safety as they produce very high powers up to a few hundred watts, and characterized in many ways. The ultrasonic power of a transducer is directly proportional to the applied input electrical voltage, current(More)
Ultrasonic fields induced by HIFU (High Intensity Focused Ultrasound) have been studied. Effect of input electrical power, harmonics and nonlinear propagation of the ultrasound fields has been quantized. Asymmetric waveforms with peak (+) pressures and peak (-) pressures were obtained both numerically and experimentally. Nonlinear propagation with harmonics(More)
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