Monte Carlo techniques have become ubiquitous in medical physics over the last 50 years
with a doubling of papers on the subject every 5 years between the first PMB paper in 1967 …

An essential requirement for successful radiation therapy is that the discrepancies between
dose distributions calculated at the treatment planning stage and those delivered to the …

The accuracy of dose computation within the lungs depends strongly on the performance of
the calculation algorithm in regions of electronic disequilibrium that arise near tissue …

Dose calculation plays an important role in the accuracy of radiotherapy treatment planning
and beam delivery. The Monte Carlo (MC) method is capable of achieving the highest …

The conversion of computed tomography (CT) numbers into material composition and mass
density data influences the accuracy of patient dose calculations in Monte Carlo treatment …

A new component module (CM), designated DYNVMLC, was developed to fully model the
geometry of the Varian Millennium 120 leaf collimator using the BEAMnrc Monte Carlo code …

The concept of in‐air output ratio was introduced to characterize how the incident photon
fluence per monitor unit (or unit time for a Co‐60 unit) varies with collimator settings …

Monte Carlo (MC) simulations play an important role in radiotherapy, especially as a method
to evaluate physical properties that are either impossible or difficult to measure. For …

The Anisotropic Analytical Algorithm (AAA) is a new pencil beam convolution/superposition
algorithm proposed by Varian for photon dose calculations. The configuration of AAA …

The purpose of this study was the investigation of perturbation factors for microionization
chambers in small field dosimetry and the influence of penumbra for different spot sizes. To …