1. A method for an improved tomographic imaging system, comprising, inputting information through a user interface, wherein the information defines an image region; creating an electrical conducting surface surrounding the entire image region according to a first instruction executed by a processor; applying radiation to the image region according to a second instruction executed by the processor to measure only field distortions reflected by the electrical conducting surface surrounding the entire image region; producing by the processor an improved field distribution from the field distortions; utilizing by the processor a mathematical inversion technique that accounts for the improved field distribution to reconstruct the image region to obtain a reconstructed image region; and illustrating the reconstructed image region on a display device.