MO-B-224-01: Clinical Implementation and Application of Monte Carlo Methods in Photon and Electron Dose Calculation - New Issues to Consider in Clinical Practice

2011 ◽  
Vol 38 (6Part25) ◽  
pp. 3707-3707
Author(s):  
N Tyagi ◽  
J Cygler
Keyword(s):  
Monte Carlo ◽  
Clinical Practice ◽  
Monte Carlo Methods ◽  
Dose Calculation ◽  
Clinical Implementation ◽  
Electron Dose

SU-FF-T-337: Clinical Implementation of Proton Monte Carlo Dose Calculation

2005 ◽  
Vol 32 (6Part12) ◽  
pp. 2028-2028
Author(s):  
H Paganetti ◽  
H Jiang ◽  
S Kollipara
Keyword(s):  
Monte Carlo ◽  
Dose Calculation ◽  
Clinical Implementation ◽  
Monte Carlo Dose Calculation

Clinical implementation of full Monte Carlo dose calculation in proton beam therapy

2008 ◽  
Vol 53 (17) ◽  
pp. 4825-4853 ◽  
Author(s):  
Harald Paganetti ◽  
Honggu Jiang ◽  
Katia Parodi ◽  
Roelf Slopsema ◽  
Martijn Engelsman
Keyword(s):  
Monte Carlo ◽  
Proton Beam ◽  
Dose Calculation ◽  
Proton Beam Therapy ◽  
Clinical Implementation ◽  
Monte Carlo Dose Calculation

Comprehensive evaluation of a commercial macro Monte Carlo electron dose calculation implementation using a standard verification data set

2006 ◽  
Vol 33 (6Part1) ◽  
pp. 1540-1551 ◽  
Author(s):  
Richard A. Popple ◽  
Rebecca Weinberg ◽  
John A. Antolak ◽  
Sung-Joon Ye ◽  
Prem N. Pareek ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Comprehensive Evaluation ◽  
Dose Calculation ◽  
Electron Dose ◽  
Data Set

Monte Carlo calculations of an Elekta Precise SL-25 photon beam model

2015 ◽  
pp. 1-12
Author(s):  
Fátima Padilla-Cabal ◽  
Mailyn Pérez-Liva ◽  
Elier Lara ◽  
Rodolfo Alfonso ◽  
Neivy Lopez-Pino
Keyword(s):  
Monte Carlo ◽  
Measurement Data ◽  
Dose Calculation ◽  
Photon Beam ◽  
Beam Model ◽  
Dose Calculations ◽  
Clinical Implementation ◽  
Dose Distributions ◽  
Major Barrier ◽  
Reconstruction Methods

AbstractBackgroundMonte Carlo (MC) simulations have been used extensively for benchmarking photon dose calculations in modern radiotherapy using linear accelerators (linacs). Moreover, a major barrier to widespread clinical implementation of MC dose calculation is the difficulty in characterising the radiation source using data reported from manufacturers.PurposeThis work aims to develop a generalised full MC histogram source model of an Elekta Precise SL-25 linac (electron exit window, target, flattening filter, monitor chambers and collimators) for 6 MV photon beams used in standard therapies. The inclusion of many different probability processes such as scatter, nuclear reactions, decay, capture cross-sections and more led to more realistic dose calculations in treatment planning and quality assurance.Materials and methodsTwo different codes, MCNPX 2·6 and EGSr-BEAM, were used for the calculation of particle transport, first in the geometry of the internal/external accelerator source, and then followed by tracking the transport and energy deposition in phantom-equivalent tissues. A full phase space file was scored directly above the upper multilayer collimator’s jaws to derive the beam characteristics such as planar fluence, angular distribution and energy spectrum. To check the quality of the generated photon beam, its depth dose curves and cross-beam profiles were calculated and compared with measured data.ResultsIn-field dose distributions calculated using the accelerator models were tuned to match measurement data with preliminary calculations performed using the accelerator information provided by the manufacturer. Field sizes of 3×3, 5×5, 10×10, 15×15 and 20×20 cm2were analysed. Local differences between calculated and measured curve doses beneath 2% were obtained for all the studied field sizes. Higher discrepancies were obtained in the air–water interface, where measurements of dose distributions with the ionisation chamber need to be shifted for the effective point of measurement.ConclusionThe agreements between MC-calculated and measured dose distributions were excellent for both codes, showing the strength and stability of the proposed model. Beam reconstruction methods as direct input to dose-calculation codes using the recorded histograms can be implemented for more accurate patient dose estimation.

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