ABSTRACT
A human body is constructed of a number of tissues, i.e., bones, skin, muscle, blood and water. Each tissue can be regarded as a dielectric. The dielectric constant, i.e., the permittivity of these tissues, possesses a temperature dependency in greater or lesser degree. As a preliminary stage for estimating the properties of permittivity inside the human head, permittivity inside the hog head is investigated. To realize the non-invasive temperature imaging in a human head by a permittivity measurement, three main problems have to be settled. The first problem is how to obtain the precision measurement data of permittivity distribution on a cross-section of the human head. The second subject is the realization of image reconstruction. The final subject is to confirm the numerical relation of temperature-permittivity dependency of each tissue of the human head. The idea of long distance-small parallel plate condenser has to be adopted to realize a mapping of temperature change in a cross-section of the human head.
