A new pencil beam model for photon dose calculations

2013 ◽  
Author(s):  
Pengcheng Zhang ◽  
Huazhong Shu ◽  
Antoine Simon ◽  
Pascal Haigron ◽  
Renaud De Crevoisier
Keyword(s):  
Beam Model ◽  
Pencil Beam ◽  
Dose Calculations ◽  
Photon Dose

A new pencil beam model for photon dose calculations in heterogeneous media

2014 ◽  
Vol 30 (7) ◽  
pp. 765-773 ◽  
Author(s):  
P. Zhang ◽  
A. Simon ◽  
R. De Crevoisier ◽  
P. Haigron ◽  
M.H. Nassef ◽  
...  
Keyword(s):  
Heterogeneous Media ◽  
Beam Model ◽  
Pencil Beam ◽  
Dose Calculations ◽  
Photon Dose

A finite-size pencil beam model for photon dose calculations in three dimensions

1992 ◽  
Vol 19 (6) ◽  
pp. 1401-1412 ◽  
Author(s):  
J. D. Bourland ◽  
E. L. Chaney
Keyword(s):  
Finite Size ◽  
Three Dimensions ◽  
Beam Model ◽  
Pencil Beam ◽  
Dose Calculations ◽  
Photon Dose

A pencil beam model for photon dose calculation

1992 ◽  
Vol 19 (2) ◽  
pp. 263-273 ◽  
Author(s):  
Anders Ahnesjö ◽  
Mikael Saxner ◽  
Avo Trepp
Keyword(s):  
Dose Calculation ◽  
Beam Model ◽  
Pencil Beam ◽  
Photon Dose

Limitations of a pencil beam approach to photon dose calculations in the head and neck region

1996 ◽  
Vol 21 (1) ◽  
pp. 38
Author(s):  
Coen Hurkmans ◽  
Tommy Knöös ◽  
Per Nilsson ◽  
Gudrun Svahn-Tapper ◽  
Hans Danielsson
Keyword(s):  
Head And Neck ◽  
Neck Region ◽  
Pencil Beam ◽  
Dose Calculations ◽  
Head And Neck Region ◽  
Photon Dose

Limitations of a pencil beam approach to photon dose calculations in lung tissue

1995 ◽  
Vol 40 (9) ◽  
pp. 1411-1420 ◽  
Author(s):  
T Knoos ◽  
A Ahnesjo ◽  
P Nilsson ◽  
L Weber
Keyword(s):  
Lung Tissue ◽  
Pencil Beam ◽  
Dose Calculations ◽  
Photon Dose

Refinements of the finite-size pencil beam model of three-dimensional photon dose calculation

1997 ◽  
Vol 24 (5) ◽  
pp. 743-750 ◽  
Author(s):  
O. Z. Ostapiak ◽  
Y. Zhu ◽  
J. Van Dyk
Keyword(s):  
Three Dimensional ◽  
Finite Size ◽  
Dose Calculation ◽  
Beam Model ◽  
Pencil Beam ◽  
Photon Dose

Photon Dose Calculation Method Based on Monte Carlo Finite-Size Pencil Beam Model in Accurate Radiotherapy

2013 ◽  
Vol 14 (5) ◽  
pp. 1415-1422 ◽  
Author(s):  
Huaqing Zheng ◽  
Guangyao Sun ◽  
Gui Li ◽  
Ruifen Cao ◽  
Xi Pei ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Treatment Plan ◽  
Finite Size ◽  
Dose Calculation ◽  
Maximum Error ◽  
Beam Model ◽  
Pencil Beam ◽  
Symmetry Principle ◽  
Clinical Criteria ◽  
Photon Dose

AbstractThis study mainly focused on the key technologies, the photon dose calculation based on the Monte Carlo Finite-Size Pencil Beam (MCFSPB) model in the Accurate Radiotherapy System (ARTS). In the MCFSPB model, the acquisition of pencil beam kernel is one of the most important technologies. In this study, by analyzing the demerits of the clinical pencil beam dose calculation methods, a new pencil beam kernel model was developed based on the Monte Carlo (MC) simulation and the technology of medical accelerator energy spectrum reconstruction. which greatly improved the accuracy of calculated result. According to the axial symmetry principle, only part of simulation results was used for the data of pencil beam kernel, which greatly reduced the data quantity of the pencil beam and reduced calculated time. Based on the above studies, the MCFSPB method was designed and implemented by the Visual C++ development tool. With several tests including the comparisons among the American Association of Physicists in Medicine (AAPM) No. 55 Report sample and the ion chamber measurement of lung-simulating inhomogeneous phantom in clinical treatment plan, the results showed that the maximum error of most calculated point was less than 0.5% in the homogeneous phantom and less than 3% in the heterogeneous phantom. This method met the clinical criteria, and would be expected to be used as a fast and accurate dose engine for clinic TPS.

Limitations of a pencil beam approach to photon dose calculations in the head and neck region

1995 ◽  
Vol 37 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Coen Hurkmans ◽  
Tommy Knöös ◽  
Per Nilsson ◽  
Gudrun Svahn-Tapper ◽  
Hans Danielsson
Keyword(s):  
Head And Neck ◽  
Neck Region ◽  
Pencil Beam ◽  
Dose Calculations ◽  
Head And Neck Region ◽  
Photon Dose
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