Dose Course 2018_Flipping book

7

Pencil beam based models

❑ Transport o Pencil Beam kernels determined in water from MC and/or measurements o Transport scaled by mass or electron density 1 ❖ In principle one either use water as medium or ❖ introduce a medium during scaling o Dose deposit in water

❑ Deposit o No conversion to medium during absorption

❑ Thus on general we have (to a water element in water) and/or it can in principle be (water element in medium) ,

,

1) Scales best electron density according to Seco and Evans, Med Phys 2006, but important to check what the specific TPS requires

Dublin 2018