Physics Bucharest 2017

ACUROS XB ALGORITHM

Linear Boltzmann transport equations

 ˆ

Photons:











 t

q q  

 ˆ

ee   e e e S





Electrons:



t 

e    q q q

e

e

R



E



 

  , , ˆ  unit direction vector     ˆ, , , Er e  

photon/electron angular fluence





 zyxr , ,

position vector energy

E

t 

total cross-section

q

particle sources

  ErS , 

stopping power

R

ESTRO physics course, June 2017