Monte Carlo simulations and phantom validation of low-dose radiotherapy to the lungs using an interventional radiology C-arm fluoroscope

2022 ◽  
Vol 94 ◽  
pp. 24-34
Author(s):  
D. Roa ◽  
S. Leon ◽  
O. Paucar ◽  
A. Gonzales ◽  
B. Schwarz ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Interventional Radiology ◽  
Monte Carlo Simulations ◽  
Low Dose ◽  
Low Dose Radiotherapy ◽  
Phantom Validation

scholarly journals A parametric study of occupational radiation dose in interventional radiology by Monte-Carlo simulations

2020 ◽  
Vol 78 ◽  
pp. 58-70
Author(s):  
Mahmoud Abdelrahman ◽  
Pasquale Lombardo ◽  
Anna Camp ◽  
Maria A. Duch ◽  
Christophe Phillips ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Interventional Radiology ◽  
Radiation Dose ◽  
Monte Carlo Simulations ◽  
Parametric Study ◽  
Occupational Radiation

Direct Observation of Intermixing in GAAS/AIAS Multilayers After Very Low-Dose Ion-Implantation

1989 ◽  
Vol 157 ◽  
Author(s):  
M. Bode ◽  
A. Ourmazd ◽  
J.A. Rentschler ◽  
M. Hong ◽  
L.C. Feldman ◽  
...  
Keyword(s):  
Pattern Recognition ◽  
Monte Carlo ◽  
Ion Implantation ◽  
Monte Carlo Simulations ◽  
Low Dose ◽  
Atomic Plane ◽  
Lattice Imaging ◽  
Energetic Ions ◽  
Before And After ◽  
Composition Profiles

ABSTRACTWe combine chemical lattice imaging and digital vector pattern recognition to study quantitatively, kinetic intermixing in GaAs/AlAs multilayers. We thus obtain, with atomic plane resolution and near-atomic sensitivity, composition profiles across each interface of a multilayer stack before and after ion-implantation. Our results show significant intermixing even when only one 320 keV Ga+ ion is implanted at 77 K into each 2000 A2 area of the interface. This corresponds to an incident ion dose of 5×l012/cm2.The intermixing is not uniform along the interface. At each interface, we observe more intensely intermixed regions, whose widths correspond to those created by the damage track of a single implanted ion, as expected from Monte-Carlo simulations. It thus appears that we can directly image intermixing due to single energetic ions implanted into the multilayered GaAs/AlAs structure.

Study of the parameters affecting operator doses in interventional radiology using Monte Carlo simulations

2011 ◽  
Vol 46 (11) ◽  
pp. 1216-1222 ◽  
Author(s):  
C. Koukorava ◽  
E. Carinou ◽  
P. Ferrari ◽  
S. Krim ◽  
L. Struelens
Keyword(s):  
Monte Carlo ◽  
Interventional Radiology ◽  
Monte Carlo Simulations

Monte Carlo simulations of occupational radiation doses in interventional radiology

2007 ◽  
Vol 80 (954) ◽  
pp. 460-468 ◽  
Author(s):  
T Siiskonen ◽  
M Tapiovaara ◽  
A Kosunen ◽  
M Lehtinen ◽  
E Vartiainen
Keyword(s):  
Monte Carlo ◽  
Interventional Radiology ◽  
Monte Carlo Simulations ◽  
Radiation Doses ◽  
Occupational Radiation

scholarly journals PO-1038: Dosimetric study for a new Low-Dose-Rate brachytherapy source using Monte Carlo simulations

2015 ◽  
Vol 115 ◽  
pp. S560
Author(s):  
E.S. Moura ◽  
M.E.C.M. Rostelato ◽  
C.A. Zeituni ◽  
C.D. Souza ◽  
R. Tiezzi ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Dose Rate ◽  
Low Dose ◽  
Low Dose Rate ◽  
Dosimetric Study ◽  
Brachytherapy Source ◽  
Low Dose Rate Brachytherapy

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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