Monte-Carlo simulations of Al2O3 dosimetry in uniform MV photon beams: Influence of field and detector size

2012 ◽  
Vol 47 (7) ◽  
pp. 501-503 ◽  
Author(s):  
Xuetao Wang ◽  
Jinhan Zhu ◽  
Shaowen Chen ◽  
Qiang Tang ◽  
Xiaowei Liu
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Photon Beams

Interface dosimetry: measurements and Monte Carlo simulations of low-energy photon beams

2001 ◽  
Vol 61 (3-6) ◽  
pp. 593-595 ◽  
Author(s):  
Indra J. Das ◽  
Alireza Kassaee ◽  
Frank Verhaegen ◽  
Vadim P. Moskvin
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Low Energy ◽  
Photon Beams ◽  
Energy Photon

Dose perturbations at high-Z interfaces in kilovoltage photon beams: comparison with Monte Carlo simulations and measurements

2002 ◽  
Vol 64 (3) ◽  
pp. 173-179 ◽  
Author(s):  
Indra J. Das ◽  
Vadim P. Moskvin ◽  
Alireza Kassaee ◽  
Tatsuo Tabata ◽  
Frank Verhaegen
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Photon Beams

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.

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