Power deposition properties of a travelling-wave applicator for interstitial hyperthermia

Author

Strickland, Peter C.

Author_Institution

Dept. of Electron., Carleton Univ., Ottawa, Ont., Canada

Volume

40

Issue

10

fYear

1993

Firstpage

1079

Lastpage

1081

Abstract

An interstitial hyperthermia applicator is described that is capable of providing uniform heating over an extended range of depths. The applicator utilizes lossy two-wire transmission lines that are terminated in p-i-n diodes that may be biased on or off. A pair of these transmission lines within a single applicator allows a variety of symmetrical and asymmetrical patterns to be produced. Theoretical predictions of the applicator´s performance are provided that are based on empirically determined transmission line characteristics.

Keywords

biomedical equipment; biothermics; radiation therapy; radiofrequency heating; asymmetrical patterns; empirically determined transmission line characteristics; interstitial hyperthermia; lossy 2-wire transmission lines; off bias; on bias; p-i-n diodes; power deposition properties; symmetrical patterns; therapeutic instrumentation; travelling-wave applicator; uniform heating; Applicators; Conductors; Heating; Hyperthermia; P-i-n diodes; Permittivity; Phased arrays; Power transmission lines; Propagation losses; Transmission line theory; Humans; Hyperthermia, Induced;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.247810

Filename

247810