Chapter 6 External Photon Beams: Physical Aspects - IRSN

366.7 CENTRAL AXIS DEPTH DOSES IN WATER: SSD SETUP6.7.2 Scatter functionThe dose at a givendepth in phantom hastwo components:primary and scatter.The larger is thedepth in phantom,the smaller is therelative primarycomponent and thelarger is the relativescatter component.IAEA Radiation Oncology Physics: A Handbook for Teachers and Students - 6.7.2 Slide 6 (71/170)6.7 CENTRAL AXIS DEPTH DOSES IN WATER: SSD SETUP6.7.2 Scatter function Dependence ofscatter function Son SSD. For a constant z,A, and h, thescatter functionS increaseswith SSD.IAEA Radiation Oncology Physics: A Handbook for Teachers and Students - 6.7.2 Slide 7 (72/170)