An Optimization of Super-Miniature X-ray Target

Electronic brachytherapy is now becoming popular because it has certain advantages over the radionuclide based brachytherapy sources. Unlike radionuclide based source, electronic brachytherapy system generates radiation using an X-ray tube. In case of radionuclide-based source, radiation is always produced regardless of needs. But X-ray produced from electronic brachytherapy system can be turned on and off thus we can get only the desired X-ray. Secondly, the dose rate can be easily controlled by adjusting operating voltage and current of electronic brachytherapy system. Lastly, electronic brachytherapy system precludes the hazards of handling the radioactive source. When we use the radiation for brachytherapy or intra-cavity imaging, one of the important concerns is the uniformity of X-ray dose distribution. Dose distribution from electronic brachytherapy system is determined by structure and geometry of X-ray target