Fast Monte Carlo dose calculation for photon beams based on the VMC electron algorithm

1999 ◽  
Vol 26 (8) ◽  
pp. 1466-1475 ◽  
Author(s):  
Matthias Fippel
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Photon Beams ◽  
Monte Carlo Dose Calculation

1401 poster COMMISSIONING OF A MONTE CARLO DOSE CALCULATION ALGORITHM FOR 6 MV AND 15 MV PHOTON BEAMS FROM A 160 MLC SIEMENS ACCELERATOR

2011 ◽  
Vol 99 ◽  
pp. S521-S522
Author(s):  
D. Zucca Aparicio ◽  
J.M. Perez Moreno ◽  
P. Fernandez-Leton ◽  
J. García Ruiz-Zorrilla ◽  
A. Minambres
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Photon Beams ◽  
Calculation Algorithm ◽  
Dose Calculation Algorithm ◽  
Monte Carlo Dose Calculation

A patient-specific Monte Carlo dose-calculation method for photon beams

1998 ◽  
Vol 25 (6) ◽  
pp. 867-878 ◽  
Author(s):  
Lu Wang ◽  
Chen-Shou Chui ◽  
Michael Lovelock
Keyword(s):  
Monte Carlo ◽  
Calculation Method ◽  
Dose Calculation ◽  
Patient Specific ◽  
Photon Beams ◽  
Monte Carlo Dose Calculation

scholarly journals Description and dosimetric verification of the PEREGRINE Monte Carlo dose calculation system for photon beams incident on a water phantom

2001 ◽  
Vol 28 (7) ◽  
pp. 1322-1337 ◽  
Author(s):  
C. L. Hartmann Siantar ◽  
R. S. Walling ◽  
T. P. Daly ◽  
B. Faddegon ◽  
N. Albright ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Photon Beams ◽  
Water Phantom ◽  
Calculation System ◽  
Dosimetric Verification ◽  
Monte Carlo Dose Calculation

Characterisation of small photon field outputs in a heterogeneous medium using X-ray voxel Monte Carlo dose calculation algorithm

2017 ◽  
Vol 17 (1) ◽  
pp. 114-123
Author(s):  
Karthikeyan Nithiyanantham ◽  
Ganesh K. Mani ◽  
Sambasivaselli Raju ◽  
Senniandavar Velliangiri ◽  
Maniyan Paramasivam ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Soft Tissue ◽  
Dose Calculation ◽  
Field Size ◽  
Planning System ◽  
Photon Beams ◽  
Calculation Algorithm ◽  
Output Factor ◽  
Voxel Monte Carlo ◽  
Monte Carlo Dose Calculation

AbstractAimTo characterise small photon beams using the Monte Carlo dose calculation algorithm for small field ranges in a heterogeneous medium.Materials and methodAn in-house phantom constructed with three different mediums, foam, polymethyl methacrylate and delrin resembling the densities of lung, soft tissue and bone respectively, was used in this study. Photon beam energies of 6 and 15 MV and field sizes of 8×8, 16×16, 24×24, 32×32 and 40×40 mm using X-ray voxel Monte Carlo (XVMC) algorithm using different detectors were validated. The relative output factor was measured in three different mediums having six different tissue interfaces; at the depth of 0, 1, 2 and 3 cm. The planar dose verification was undertaken using gafchromic films and considered dose at the lung and bone medium interfaces. For all the measurements, 104×104 mm was taken as the reference field size. The relative output factor for all other field sizes was taken and compared with planning system calculated values.ResultsFrom field size 16×16 mm and above, the relative output factors were analysed in bone and soft tissue medium having lung as first medium. The maximum deviations were observed as 1·8 and 1·3% for 6 MV and 2·5 and 1·1% for 15 MV photon beams for bone and soft tissue, respectively. For lung as measurement medium, the maximum deviation of 14·8 and 19·2% were observed and having bone as first medium with 8×8 mm for 6 and 15 MV photon beams, respectively. The fluence verification of dose spectrum for the lung–bone interface scenarios with smaller field sizes were found within 2% of deviation with treatment planning system (TPS).ConclusionThe accuracy of dose calculations for small field sizes in XVMC-based treatment planning algorithm was studied in different inhomogeneous mediums. It was found that the results correlated with measurement data for field size 16×16 mm and above. Noticeable deviation was observed for the smallest field size of 8×8 mm with interfaces of significant change in density. The observed results demands further analysis of work with smaller field sizes.

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