3D Visualization and Localization of Radiation Source in External Radiotherapy Using Inverse linear Boltzmann Transport Equation

The location of the source in case of radiotherapy is an important aspect because it directly affects the target medium. There are mainly two types of radio therapies namely external radiotherapy and brachytherapy. For our study, we are considering the external radiotherapy in which the source is located at some distance from the target body. Source produces the radiation which may be photon beam or electron radiation. In this study, we are assuming photons which do not interact with each other but interacts with materials particles unless and until magnetic field is present. This radiation destroys the tumorous tissues present in the target body. But during this process, lot of care should be taken so that the healthy tissue should not get damaged. In Radiotherapy Source Localization System (RSLS), dose distribution on the patient's body is known and it needs to calculate the distance between each point of the target and source. So, hereby, we are proposing an algorithm for CPU/GPU to calculate correct position of the source using inverse Linear Boltzmann Transport Equation (LBTE). It can also be used as a radiation protection programme for removal of unwanted resources.