EVALUATION OF SKIN DOSE UNDER THE BOLUS FOR POST-OPERATIVE BREAST CANCER TREATMENT

Results of investigation of the absorbed doses on a phantom surface under the "sticking" and ordinary non-sticking silicone boluses simulating post-operative breast cancer irradiation are presented in this paper. It is shown that the treatment effectiveness in post-operative breast cancer irradiation may be improved when a "sticking" bolus attached to the patient surface is applied instead of an ordinary non-sticking bolus. Application of "sticking" bolus adapted treatment configuration is of advantage because it is independent on air gaps between bolus and the surface.