Title :
Design of interstitial ring-slot applicator for microwave hyperthermia
Author :
Terakawa, Takashige ; Ito, Koichi ; Ueno, Koji ; Hyodo, Manabu ; Kasai, Haruo
Author_Institution :
Tokyo Keiki Co. Ltd., Japan
Abstract :
Summary form only given. The structure of a thin ring-slot applicator for microwave hyperthermia and a typical measured specific-absorption-rate (SAR) distribution are described. A high iso-SAR was obtained at the tip, but the distribution tailed off along the cable to the surface of the phantom. This is attributed to a reflected electric current flowing back along the outside of the cable. An equivalent circuit model that can be used to improve the design of the applicator is shown
Keywords :
biomedical equipment; biothermics; microwave antennas; radiation therapy; radiofrequency heating; cable; equivalent circuit model; interstitial ring-slot applicator; medical instrumentation; microwave hyperthermia; phantom surface; reflected electric current; specific absorption rate distribution; Antenna measurements; Applicators; Coaxial cables; Electromagnetic heating; Equivalent circuits; Hyperthermia; Imaging phantoms; Indium tin oxide; Neoplasms; Power cables;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96130
