SU-E-T-723: Pencil Beam Depth-Dose Distributions in the Astroid TPS

2011 ◽  
Vol 38 (6Part22) ◽  
pp. 3657-3657
Author(s):  
B Clasie ◽  
H Kooy ◽  
N Depauw ◽  
C Goma ◽  
A Carabe-Fernandez ◽  
...  
Keyword(s):  
Pencil Beam ◽  
Dose Distributions ◽  
Depth Dose ◽  
Beam Depth

PO-1486: Electron beam depth dose distributions in 3D-printed samples with different material filling factor

2020 ◽  
Vol 152 ◽  
pp. S799-S800
Author(s):  
S. StuchebroV ◽  
A. Bulavskaya ◽  
Y. Cherepennikov ◽  
B. Gavrikov ◽  
I. Miloichikova ◽  
...  
Keyword(s):  
Electron Beam ◽  
Filling Factor ◽  
Dose Distributions ◽  
Depth Dose ◽  
Beam Depth ◽  
3D Printed

scholarly journals The influence of beam delivery uncertainty on dose uniformity and penumbra for pencil beam scanning in carbon-ion radiotherapy

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0249452
Author(s):  
Yue Li ◽  
Yunzhe Gao ◽  
Xinguo Liu ◽  
Jian Shi ◽  
Jiawen Xia ◽  
...  
Keyword(s):  
Physical Therapists ◽  
Heavy Ion ◽  
Pencil Beam ◽  
Dose Distributions ◽  
Carbon Ion ◽  
Depth Dose ◽  
Dose Uniformity ◽  
Ion Therapy ◽  
Treatment Plans ◽  
Beam Delivery

The dose uniformity and penumbra in the treatment field are important factors in radiotherapy, which affects the outcomes of radiotherapy. In this study, the integrated depth-dose-distributions (IDDDs) of 190 MeV/u and 260 MeV/u carbon beams in the active spot-scanning delivery system were measured and calculated by FLUKA Monte Carlo simulation based on the Heavy Ion Medical Machine (HIMM). Considering the dose distributions caused by secondary particles and scattering, we also used different types of pencil beam (PB) models to fit and compare the spatial distributions of PB. We superposed a bunch of PB to form a 20×20 cm2 treatment field with the double Gaussian and double Gaussian logistic beam models and calculated the influence of beam delivery error on the field flatness and penumbra, respectively. The simulated IDDDs showed good agreement with the measured values. The triple Gaussian and double Gaussian logistic beam models have good fitness to the simulated dose distributions. There are different influences on dose uniformity and penumbra resulting from beam uncertainties. These results would be helpful for understanding carbon ion therapy, and physical therapists are more familiar with beam characteristics for active scanning therapy, which provides a reference for commissioning and optimization of treatment plans in radiotherapy.

Physical approach to depth dose distributions in a water phantom irradiated by a teleisotope photon beam

1980 ◽  
Vol 7 (2) ◽  
pp. 120-126 ◽  
Author(s):  
Sain D. Ahuja ◽  
Steven L. Stroup ◽  
Marion G. Bolin ◽  
S. Julian Gibbs
Keyword(s):  
Photon Beam ◽  
Dose Distributions ◽  
Water Phantom ◽  
Depth Dose ◽  
Physical Approach

scholarly journals Erratum: Semi-empirical model for depth dose distributions of megavoltage x-ray beams [Med. Phys. 7 , 537 (1980)]

1981 ◽  
Vol 8 (2) ◽  
pp. 251-251
Author(s):  
Sain D. Ahuja ◽  
Steven L. Stroup ◽  
Marion G. Bolin
Keyword(s):  
Empirical Model ◽  
Dose Distributions ◽  
X Ray ◽  
Depth Dose ◽  
Semi Empirical

Erratum: Physical approach to depth dose distributions in a water phantom irradiated by a teleisotope photon beam [Med. Phys. 7 , 120 (1980)]

1980 ◽  
Vol 7 (5) ◽  
pp. 550-550
Author(s):  
Sain D. Ahuja ◽  
Steven L. Stroup ◽  
Marion G. Bolin ◽  
S. Julian Gibbs
Keyword(s):  
Photon Beam ◽  
Dose Distributions ◽  
Water Phantom ◽  
Depth Dose ◽  
Physical Approach

scholarly journals Degradation of proton depth dose distributions attributable to microstructures in lung‐equivalent material

2015 ◽  
Vol 42 (11) ◽  
pp. 6425-6432 ◽  
Author(s):  
Uwe Titt ◽  
Martin Sell ◽  
Jan Unkelbach ◽  
Mark Bangert ◽  
Dragan Mirkovic ◽  
...  
Keyword(s):  
Equivalent Material ◽  
Dose Distributions ◽  
Depth Dose

Effect of Anatomic Changes on Pencil Beam Scanned Proton Dose Distributions for Cranial and Extracranial Tumors

2017 ◽  
Vol 97 (3) ◽  
pp. 616-623 ◽  
Author(s):  
Lorenzo Placidi ◽  
Alessandra Bolsi ◽  
Antony J. Lomax ◽  
Ralf A. Schneider ◽  
Robert Malyapa ◽  
...  
Keyword(s):  
Pencil Beam ◽  
Dose Distributions ◽  
Proton Dose
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