Generation of a prespecified electromagnetic field on the axis of a two-layer lossy cylinder

Author

Al-Harbi, S.S. ; Nabulsi, K.A.

Author_Institution

Dept. of Electr. & Comput. Eng., King Abdulaziz Univ., Jeddah, Saudi Arabia

Volume

145

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

222

Lastpage

225

Abstract

A prespecified electromagnetic field on the axis of a two-layer lossy cylinder will be assumed. The required excitation (source) that produces this field on the surface of the outer layer is calculated and then discretised to obtain an array of circumferential slots that produce the required field on the axis of the lossy cylinder. A confirming forward calculation is done to show that the array of circumferential slots produces an accurate approximation to the required field on the axis of the lossy cylinder. Results are presented to show the required surface source for different cylinder parameters and fields produced by the discrete source. This process has applications in hyperthermia, biomedical treatment, subsurface geophysical probing, focusing and nondestructive testing

Keywords

Helmholtz equations; eddy current testing; electromagnetic fields; electromagnetic induction; geophysical prospecting; hyperthermia; Gaussian pulse; Helmholtz equation; accurate approximation; array of circumferential slots; biomedical treatment; focusing; forward calculation; hyperthermia; nondestructive testing; prespecified EM field generation; required excitation calculation; required surface source; subsurface geophysical probing; two-layer lossy cylinder axis;

fLanguage

English

Journal_Title

Science, Measurement and Technology, IEE Proceedings -

Publisher

iet

ISSN

1350-2344

Type

jour

DOI

10.1049/ip-smt:19982205

Filename

729711