Dose deposited in the beam halo by a scanned protonpencil beam

B. Clasie, H. Kooy, M. Fransen, N. Depauw & J. Flanz
Background: Long-range secondary particles (neutrons and photons) and primary protons scattered through large angles contribute to the halo surrounding proton pencil beams. Is it desirable to include the dose deposited by these particles in the lateral direction in a pencil-beam dose algorithm. One[for full text, please go to the a.m. URL]