E-field distribution measurement system for hyperthermia applicators with LED sensor

Author

Merunka, Ilja ; Fiser, Ondrej ; Vrba, Jan

Author_Institution

Dept. of Electromagn. Field, Czech Tech. Univ. in Prague, Prague, Czech Republic

fYear

2015

fDate

22-23 April 2015

Firstpage

1

Lastpage

3

Abstract

In this contribution we present a first version of a simple and fast system for E-field and SAR distribution measurement of hyperthermia applicators. The system consists of five main parts. These are 3D positioning system, light emitting diode (LED) sensor of electrical field (E-field), aquarium with saline solution, digital camera and image processing algorithm. LED E-field sensor is moved in front of the aperture of hyperthermia applicator while the digital camera takes pictures of the scene in appropriate cross section of the applicator. Digital image processing is then performed in order to extract intensity of light emitted from the sensor and reconstruct the final distribution of E-field. Results from this measuring procedure are compared with the results from numerical simulation.

Keywords

biomedical equipment; biomedical optical imaging; cameras; dosimetry; electric field measurement; feature extraction; hyperthermia; image reconstruction; light emitting diodes; medical image processing; numerical analysis; radiation therapy; 3D positioning system; E-field distribution measurement system; E-field distribution reconstruction; LED E-field sensor; SAR distribution measurement system; applicator cross section; aquarium; digital camera; digital image processing; electrical field sensor; hyperthermia applicator aperture; image processing algorithm; light emission; light emitting diode sensor; light intensity extraction; numerical simulation; saline solution; Antenna measurements; Applicators; Digital cameras; Hyperthermia; Light emitting diodes; Temperature measurement; Three-dimensional displays; LED; hyperthermia; image processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Techniques (COMITE), 2015 Conference on

Conference_Location

Pardubice

Print_ISBN

978-1-4799-8121-2

Type

conf

DOI

10.1109/COMITE.2015.7120227

Filename

7120227