Wall and central electrode perturbation for ion chambers in proton beams

H. Palmans
Background: Ionisation chambers are widely used for reference dosimetry in radiotherapeutic proton beams. Recent codes of practice for dosimetry in proton beams assume that perturbation factors for ionisation chambers are unity. There have, however, been some indications in the literature, both from[for full text, please go to the a.m. URL]