The stability of silicone based bolus before and after a radiotherapy treatment

Certain patients with cancer that need radiotherapy have tumor formations that are at the surface of the skin, but also in depth of the tissue. The only option is to use a photon beam and a bolus material to ensure full coverage of the tumor. In this paper we present an experimental study regarding the use of a silicone based rubber as a bolus material that attenuates the photon beam and helps to have a full dosimetric coverage of the tumor site. The experimental results show that the bolus material that we used is a viable replacement of the commercials bolus because of the dosimetric equivalent between the two boluses, cost reduction and the easy use in clinical treatment.