Investigation of depth dose distribution from electron beam at shallow depth by means of Gafchromic EBT3 polymer films and ionization chamber

2016 ◽  
Vol 32 ◽  
pp. 296-297 ◽  
Author(s):  
Leonid Sukhikh ◽  
Evgeniia Sukhikh ◽  
Valentina Babicheva ◽  
Evgeniy Malikov
Keyword(s):  
Electron Beam ◽  
Polymer Films ◽  
Dose Distribution ◽  
Ionization Chamber ◽  
Shallow Depth ◽  
Depth Dose ◽  
Depth Dose Distribution

Patient-specific quality assurance for proton depth dose distribution using a multi-layer ionization chamber in a single-ring wobbling method

2019 ◽  
Vol 12 (3) ◽  
pp. 305-311 ◽  
Author(s):  
Takahiro Kato ◽  
Kazuhiro Arai ◽  
Tatsuhiko Sagara ◽  
Ryohei Kato ◽  
Yuhei Yamazaki ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Dose Distribution ◽  
Ionization Chamber ◽  
Patient Specific ◽  
Depth Dose ◽  
Single Ring ◽  
Depth Dose Distribution

scholarly journals TWO-PARAMETRIC BEAM MODEL FOR DOSIMETRY OF THE PROCESS OF ELECTRON IRRADIATION OF MATERIALS WITH LOW DENSITY AND ATOMIC NUMBER

2021 ◽  
pp. 34-37
Author(s):  
V.T. Lazurik ◽  
V.M. Lazurik ◽  
G. Popov ◽  
Z. Zimek
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Electron Irradiation ◽  
Dose Distribution ◽  
Parametric Model ◽  
Low Density ◽  
Dose Distributions ◽  
Depth Dose ◽  
Measurement Results ◽  
Depth Dose Distribution

The work is devoted to studying the possibility of using a two-parametric model of an electron beam to describe the depth distributions of the electron dose in materials with a low density and an effective atomic number. In this model, the parameters are determined by fitting the semi-empirical model (PFSEM-method) to the results of meas-urements of the depth-dose distribution in a dosimetric wedge. The depth-dose distributions in a birchwood wedge were measured at the Institute of Nuclear Chemistry and Technology in Warsaw, Poland. The parameters of the electron beam incident on the wedge were determined by the PFSEM method. The Monte Carlo simulations of the depth-dose distribution in the wedge for the process of electron irradiation, the characteristics of which are deter-mined by the PFSEM method, have been carried out. It is shown that there is a satisfactory agreement between the measurement results and the Monte Carlo simulation of the depth-dose distribution. The advantages of describing depth-dose distributions in a wedge based on a two-parametric model of an electron beam in comparison with tradi-tional methods of polynomial approximation of measurement results are discussed.

scholarly journals Electron Beam Depth Dose Distribution Evaluation

1970 ◽  
Vol 9 (6) ◽  
pp. 545-554 ◽  
Author(s):  
A. Jacobson ◽  
Th. E. Banks ◽  
M. A. Ackerman ◽  
H. E. Brizel ◽  
R. M. Scott
Keyword(s):  
Electron Beam ◽  
Dose Distribution ◽  
Depth Dose ◽  
Beam Depth ◽  
Depth Dose Distribution

Depth-dose Distribution Measurements and Calculations in an Elliptical Phantom

1983 ◽  
Vol 44 (1) ◽  
pp. 35-44
Author(s):  
J. Palfalvi ◽  
L. Koblinger ◽  
P. P. Szabo
Keyword(s):  
Dose Distribution ◽  
Depth Dose ◽  
Depth Dose Distribution

Electron Depth‐Dose Distribution Measurements in Finite Polystyrene Slabs

1972 ◽  
Vol 43 (7) ◽  
pp. 3191-3202 ◽  
Author(s):  
Marvin Rosenstein ◽  
Harvey Eisen ◽  
Joseph Silverman
Keyword(s):  
Dose Distribution ◽  
Depth Dose ◽  
Depth Dose Distribution

Khảo sát một số đặc tính bức xạ của buồng ion hóa CC13 và diode bán dẫn razor đối với các chùm photon kích thước nhỏ trên máy gia tốc tuyến tính xạ trị Clinac IX

2020 ◽  
Author(s):  
Tu Vu Ngoc
Keyword(s):  
Radiation Field ◽  
Dose Response ◽  
Dose Distribution ◽  
Ionization Chamber ◽  
Field Size ◽  
Photon Beams ◽  
Silicon Diode ◽  
Depth Dose ◽  
The Difference

Purpose: Compare percent depth dose (PDD) and off-center ratio (OCR) measured by the CC13 ionization chamber and the RAZOR silicon diode in small photon beams. Method and Materials: Some dosimetric characteristics, such as PDD, OCR, penumbra and radiation field size, were considered in this study for 2x2, 3x3, and 4x4 cm2 field sizes. We used the CC13 ionization chamber and the RAZOR silicon diode to measure dose distribution with depth along the axis and off-center of the beam. From the results obtained, the team investigated the differences in radiation parameters measured by the two types of probes above. Results: There are significant differences in the radiation parameters investigated for the CC13 ionization chamber and the RAZOR silicon diode, especially the width of penumbra. For PDD curves, the difference is less than 5% from dmax to 30 cm, however the difference becomes greater in the build-up region, which reaches to 33% at the water phatom surface. The width of penumbra measured by CC13 is always larger than that of RAZOR, the ratio of the penumbra width between two detectors is 1.8 and 1.3 for energies of 6 MV and 15 MV, respectively. Conclusion: The RAZOR silicon diode has better dose response than the CC13 ionization chamber for measuring the PDD and the OCR in small photon beams.

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