Determination of electron beam output factors for a 20-MeV linear accelerator

1985 ◽  
Vol 12 (4) ◽  
pp. 473-476 ◽  
Author(s):  
Michael D. Mills ◽  
Kenneth R. Hogstrom ◽  
Robert S. Fields
Keyword(s):  
Electron Beam ◽  
Linear Accelerator ◽  
Beam Output ◽  
Output Factors

Determination of Electron Beam Output Factors For A 14-Mev Linear Accelerator (Phillips Sl75/14n)

2007 ◽  
Vol 23 (3-4) ◽  
pp. 137-138
Author(s):  
Vuyisile Jonas ◽  
F.C.P. du Plessis ◽  
C.A. Willemse
Keyword(s):  
Electron Beam ◽  
Linear Accelerator ◽  
Beam Output ◽  
Output Factors

Monte Carlo calculations of electron beam output factors for a medical linear accelerator

1998 ◽  
Vol 43 (12) ◽  
pp. 3479-3494 ◽  
Author(s):  
Ajay Kapur ◽  
C-M Ma ◽  
Ed C Mok ◽  
David O Findley ◽  
Arthur L Boyer
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Linear Accelerator ◽  
Monte Carlo Calculations ◽  
Medical Linear Accelerator ◽  
Beam Output ◽  
Output Factors

Prediction of electron beam output factors

1982 ◽  
Vol 9 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Michael D. Mills ◽  
Kenneth R. Hogstrom ◽  
Peter R. Almond
Keyword(s):  
Electron Beam ◽  
Beam Output ◽  
Output Factors

Characterization and Stability of Electron Beam Output Factors for an Elekta Precise Linac

2007 ◽  
Vol 23 (3-4) ◽  
pp. 129
Author(s):  
J. Steyn ◽  
F.C.P. du Plessis ◽  
C.A. Willemse
Keyword(s):  
Electron Beam ◽  
Beam Output ◽  
Output Factors

Benchmarking of Monte Carlo model of Siemens Oncor® linear accelerator for 18MV photon beam: Determination of initial electron beam parameters

2020 ◽  
Vol 27 (6) ◽  
pp. 1047-1070
Author(s):  
Milad Najafzadeh ◽  
Mojtaba Hoseini-Ghafarokhi ◽  
Rezgar Shahi Mayn Bolagh ◽  
Mohammad Haghparast ◽  
Shiva Zarifi ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Linear Accelerator ◽  
Monte Carlo Model ◽  
Photon Beam ◽  
Initial Electron ◽  
Beam Parameters

scholarly journals Monte Carlo investigation of electron beam output factors versus size of square cutout

1999 ◽  
Vol 26 (5) ◽  
pp. 743-750 ◽  
Author(s):  
G. G. Zhang ◽  
D. W. O. Rogers ◽  
J. E. Cygler ◽  
T. R. Mackie
Keyword(s):  
Monte Carlo ◽  
Electron Beam ◽  
Beam Output ◽  
Monte Carlo Investigation ◽  
Output Factors

scholarly journals VERIFICATION OF THE DETERMINATION OF 12 MEV ELECTRON BEAM OUTPUT VERSA HD / 154714 LINEAR SPEEDING PLANE IN MAYAPADA HOSPITAL

2020 ◽  
Vol 14 (1) ◽  
pp. 31
Author(s):  
Assef Firmando Firmansyah
Keyword(s):  
Linear Accelerator ◽  
Primary Standard ◽  
Reference Conditions ◽  
Measurement Tool ◽  
Standard Laboratory ◽  
Ionization Detector ◽  
Energy Beam ◽  
Beam Output ◽  
Absolute Measurements

VERIFICATION OF THE DETERMINATION OF THE NOMINAL ENERGY BEAM OUTPUT OF THE 12 MEV LINEAR ACCELERATOR PLANE ELEKTA VERSA HD / 154714 AT MAYAPADA HOSPITAL. This paper describes verifying the determination of the 12 MeV nominal energy beam electron water absorption dose emitted from the Elekta Versa HD / 154714 medical linear accelerator owned by Mayapada Hospital, Lebak Bulus, Jakarta. Measurements were done in the 1D water phantom Scanner under reference conditions with the distance of the radiation source to the surface of the water 100 cm and the radiation field formed by the applicator 10 cm x 10 cm and the depth corresponding to (0.6 R50 - 0.1) cm. The IBA CC13 ionization detector is used as a radiation measurement tool for PDD measurements, while the Roos parallel ionization detector is used for absolute measurements. Roos's parallel ionizer detector is aligned with PTKMR-BATAN's PTW Webline electrometer. This detector is also traced to the primary standard laboratory of BIPM, France. Meanwhile, the PCC04 chip ionizing detector parallel to the PCC04 is coupled with a Dose 1 electrometer owned by Mayapada Hospital, which is traced to the PTB primary standard laboratory. Calculation of measurement results is carried out using the IAEA dosimetry protocol contained in Technical Report Series No. 398. The results obtained indicate a fairly good fit between the two measurements with a difference of 0.3%

scholarly journals Determination of effective source to surface distance and cutout factor in small fields in electron beam radiotherapy: A comparison of different dosimeters

2020 ◽  
Vol 26 (4) ◽  
pp. 235-242
Author(s):  
Mohamad Reza Bayatiani ◽  
Fatemeh Fallahi ◽  
Akbar Aliasgharzadeh ◽  
Mahdi Ghorbani ◽  
Benyamin Khajetash ◽  
...  
Keyword(s):  
Electron Beam ◽  
Linear Accelerator ◽  
Beam Energy ◽  
Field Size ◽  
Surface Distance ◽  
Small Fields ◽  
Dosimetry System ◽  
Electron Beam Radiotherapy ◽  
Effective Source

AbstractObjective: The main purpose of this study is to calculate the effective source to surface distance (SSDeff) of small and large electron fields in 10, 15, and 18 MeV energies, and to investigate the effect of SSD on the cutout factor for electron beams a linear accelerator. The accuracy of different dosimeters is also evaluated.Materials and methods: In the current study, Elekta Precise linear accelerator was used in electron beam energies of 10, 15, and 18 MeV. The measurements were performed in a PTW water phantom (model MP3-M). A Semiflex and Advanced Markus ionization chambers and a Diode E detector were used for dosimetry. SSDeff in 100, 105, 110, 115, and 120 cm SSDs for 1.5 × 1.5 cm2 to 5 × 5 cm2 (small fields) and 6 × 6 cm2 to 20 × 20 cm2 (large fields) field sizes were obtained. The cutout factor was measured for the small fields.Results: SSDeff in small fields is highly dependent on energy and field size and increases with increasing electron beam energy and field size. For large electron fields, with some exceptions for the 20 × 20 cm2 field, this quantity also increases with energy. The SSDeff was increased with increasing beam energy and field size for all three detectors.Conclusion: The SSDeff varies significantly for different field sizes or cutouts. It is recommended that SSDeff be determined for each electron beam size or cutout. Selecting an appropriate dosimetry system can have an effect in determining cutout factor.

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