Field Intensity Measurement of a RF High Power Heating System

Abstract

RF Hyperthermia has received much attention due to its noninvasive nature in cancer treatment. Precise measurement of the electric field in RF hyperthermia system is of critical importance in the control of heating effect and treatment. In this paper, a comparative measurement method of the electric field intensity of a 13.56MHz RF heating system is presented. A calibrated dipole antenna was utilized to measure the electric field of the applicator. In comparison with the results measured by the capacitance partial voltage technique, it is found that the two methods are in good agreement with each other with an accuracy of 92%.