Effect of scattering angle on energy loss radiography imaging for various proton energies relevant in proton therapy: A simulation study

The quality of cancer treatment with protons critically depends on the accurate determination of proton stopping powers (PSPs) of traversed tissues. Nowadays, proton treatment planning is based on stopping powers derived from X-ray Computed Tomography (CT) images leading to systematic uncertainties in the proton range in a patient of 3 –4% and even up to 10% in regions containing bone. This may cause no dose in parts of the tumor and overdose in healthy tissues.
Source: Physica Medica: European Journal of Medical Physics - Category: Journals (General) Authors: Source Type: research