| 摘要 |
<p>A tomography apparatus for producing image data representative of a dielectric and/or conductivity property distribution within an object using electromagnetic radiation having a frequency in the range 0.05 GHz to 10 GHz, the apparatus having: a processing means for producing image data representative of a dielectric and/or conductivity property distribution within an object located in the imaging domain based on measurement data from the measuring means, wherein the tomography apparatus is configured so that electromagnetic radiation incident on the receivers during a second time period t2 is disregarded for the production of said image data when the apparatus is in use, the second time period t2 being subsequent to a first time period t1 during which electromagnetic radiation is emitted by a selected one of the emitters. The tomography apparatus may include waveguide antennae, the real componentμr′of the complex relative permeabilityμr of each waveguide antenna being substantially more than 1.</p> |
