1992 年 8 巻 1 号 p. 59-61
To prevent the leakage of Radio Frequency wave (RF wave) during hyperthermia, magnetic material was used. A ferrite core in troidal shape as a magnetic material was put into the coaxial cable between Endoradiotherm100AR and internal applicater. About 3.5-4dB loss of leakage was obtained.
This method might be effective for decreasing the leakage of RF wave.