SU-FF-T-294: Monte Carlo Simulations of the Dosimetric Characteristics of a New Multileaf Collimator

2005 ◽  
Vol 32 (6Part11) ◽  
pp. 2018-2018
Author(s):  
M Tacke ◽  
H Szymanowski ◽  
C Schulze ◽  
S Nuss ◽  
E Wehrwein ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Multileaf Collimator

scholarly journals Qualitative analysis of irregular fields delivered with dual electron multileaf collimator: A Monte Carlo study

2016 ◽  
Vol 22 (1) ◽  
pp. 5-9
Author(s):  
Samuel Okon Inyang ◽  
Alan Chamberlain
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Qualitative Analysis ◽  
Monte Carlo Simulations ◽  
Electron Beams ◽  
Monte Carlo Study ◽  
Multileaf Collimator ◽  
Water Phantom ◽  
Electron Beam Therapy

Abstract The use of a dual electron multileaf collimator (eMLC) to collimate therapeutic electron beam without the use of cutouts has been previously shown to be feasible. Further Monte Carlo simulations were performed in this study to verify the nature and appearance of the isodose distribution in water phantom of irregular electron beams delivered by the eMLC. Electron fields used in this study were selected to reflect those used in electron beam therapy. Results of this study show that the isodose distribution in a water phantom obtained from the simulation of irregular electron beams through the eMLC conforms to the pattern of the eMLC used in the delivery of the beam. It is therefore concluded that the dual eMLC could deliver isodose distributions reflecting the pattern of the eMLC field that was used in the delivery of the beam.

Dose measurements compared with Monte Carlo simulations of narrow 6 MV multileaf collimator shaped photon beams

1999 ◽  
Vol 26 (9) ◽  
pp. 1874-1882 ◽  
Author(s):  
K. De Vlamynck ◽  
H. Palmans ◽  
F. Verhaegen ◽  
C. De Wagter ◽  
W. De Neve ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Multileaf Collimator ◽  
Photon Beams ◽  
Dose Measurements

Low-voltage EDS of magnesium ferrite Dendrites in a FEG-SEM

1996 ◽  
Vol 54 ◽  
pp. 478-479
Author(s):  
Matthew T. Johnson ◽  
Ian M. Anderson ◽  
Jim Bentley ◽  
C. Barry Carter
Keyword(s):  
Monte Carlo ◽  
Quantitative Analysis ◽  
Monte Carlo Simulations ◽  
Cross Section ◽  
Spatial Resolution ◽  
Low Voltage ◽  
Magnesium Ferrite ◽  
X Ray ◽  
Interaction Volume ◽  
Ferrite Spinel

Energy-dispersive X-ray spectrometry (EDS) performed at low (≤ 5 kV) accelerating voltages in the SEM has the potential for providing quantitative microanalytical information with a spatial resolution of ∼100 nm. In the present work, EDS analyses were performed on magnesium ferrite spinel [(MgxFe1−x)Fe2O4] dendrites embedded in a MgO matrix, as shown in Fig. 1. spatial resolution of X-ray microanalysis at conventional accelerating voltages is insufficient for the quantitative analysis of these dendrites, which have widths of the order of a few hundred nanometers, without deconvolution of contributions from the MgO matrix. However, Monte Carlo simulations indicate that the interaction volume for MgFe2O4 is ∼150 nm at 3 kV accelerating voltage and therefore sufficient to analyze the dendrites without matrix contributions.Single-crystal {001}-oriented MgO was reacted with hematite (Fe2O3) powder for 6 h at 1450°C in air and furnace cooled. The specimen was then cleaved to expose a clean cross-section suitable for microanalysis.

MONTE CARLO SIMULATIONS OF ELECTRON DRIFT VELOCITIES IN THE NOBLE GASES AND THEIR MIXTURES

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-63-C7-64
Author(s):  
A. J. Davies ◽  
J. Dutton ◽  
C. J. Evans ◽  
A. Goodings ◽  
P.K. Stewart
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Noble Gases ◽  
Electron Drift
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