Ferromagnetic implants in hyperthermia: An analytical, numerical and experimental study

Persistent Link:
http://hdl.handle.net/10150/291608
Title:
Ferromagnetic implants in hyperthermia: An analytical, numerical and experimental study
Author:
Haider, Shah Ali, 1954-
Issue Date:
1988
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Power deposition in ferromagnetic implants of cylindrical and spherical shape from an externally applied uniform time harmonic radio-frequency magnetic field has been investigated by means of quasi-static analysis. Inductive heating efficiency is related to the relative permeability and temperature dependence of permeability can be exploited to limit the maximum temperature rise to the desired value by proper choice of Curie point of ferromagnetic material. It is found that theoretically calculated power absorption versus orientation of the cylindrical implant with the direction of magnetic field is in good agreement with the experimental results. The parametric studies are based on a two-dimensional finite difference model for calculating temperature distribution in perfused tissues due to induction heating of an array of implants. An approximate analytical model was developed for a large regular array of implants in perfused tissues. The results of the analytical model are compared with those of the numerical model. (Abstract shortened with permission of author.)
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Thermotherapy.; Cancer -- Thermotherapy.; Ferromagnetic materials -- Therapeutic use.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Electrical and Computer Engineeering
Degree Grantor:
University of Arizona
Advisor:
Cetas, Thomas C.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleFerromagnetic implants in hyperthermia: An analytical, numerical and experimental studyen_US
dc.creatorHaider, Shah Ali, 1954-en_US
dc.contributor.authorHaider, Shah Ali, 1954-en_US
dc.date.issued1988en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractPower deposition in ferromagnetic implants of cylindrical and spherical shape from an externally applied uniform time harmonic radio-frequency magnetic field has been investigated by means of quasi-static analysis. Inductive heating efficiency is related to the relative permeability and temperature dependence of permeability can be exploited to limit the maximum temperature rise to the desired value by proper choice of Curie point of ferromagnetic material. It is found that theoretically calculated power absorption versus orientation of the cylindrical implant with the direction of magnetic field is in good agreement with the experimental results. The parametric studies are based on a two-dimensional finite difference model for calculating temperature distribution in perfused tissues due to induction heating of an array of implants. An approximate analytical model was developed for a large regular array of implants in perfused tissues. The results of the analytical model are compared with those of the numerical model. (Abstract shortened with permission of author.)en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectThermotherapy.en_US
dc.subjectCancer -- Thermotherapy.en_US
dc.subjectFerromagnetic materials -- Therapeutic use.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineElectrical and Computer Engineeeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorCetas, Thomas C.en_US
dc.identifier.proquest1335821en_US
dc.identifier.oclc22191704en_US
dc.identifier.bibrecord.b17373797en_US
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