Low-Z Inhomogeneity Correction in Proton Beam Therapy

I. Das, L. Fanelli, M. Somers, M. Wolanski, C.-W. Cheng, A. Singh, S.-C. Ko, C. DesRosiers & P. Johnstone
Backgrounds: Low-Z inhomogeneities such as lung and air column create dose perturbation in proton beam therapy (PBT) for lung and liver treatments. Without proper inhomogeneity correction, dose perturbation causes inaccurate patient treatment. The impact of low-Z material on proton dose distributions[for full text, please go to the a.m. URL]