![Show Menu](styles/mobile-menu.png)
![Page Background](./../common/page-substrates/page0240.jpg)
Schneider
BEAM
Water
Jiang et al MP 2007
Dm
Dw
•
Method chosen to assign tissue materials
(mass density and elemental composition) affects dose distribution
•
More important in OAR (distal ranges)
•
Ranges calculated using Dw and Dm for protons stopping in bone
can differ by 2-3mm (Paganetti 2009)