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5.2
Method summary
Equations solved:
•
set up the primary beam (based on a beam model of your choice) and calculate the
primary fluence field in the patient
•
set up transport equations, discretize (and massage…) them to get a linear
equation system (large but sparse matrices…) for a grid of points representing the
patient
•
solve for the secondary particle fluencies, in particular the electron fluence
•
use the electron fluence and calculate dose (multiply by stopping power)
Converges to the true solution (except for neglected interactions) with finer
discretizations
One commercial implementation (Acuros™ in Varian Eclipse, EB and brachy versions)
*
*
Failla
etal Acuros XB advanced dose calculation for the Eclipse treatment planning system.
Varian white paper
*
Gifford
etal
, 2006. Phys Med Biol. 51(9):2253-65.
*
Gifford
etal
, 2008. Med Phys. 35(6):2279-85.
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