scholarly journals A novel method for the determination of field output factors and output correction factors for small static fields for six diodes and a microdiamond detector in megavoltage photon beams

2018 ◽  
Vol 46 (2) ◽  
pp. 944-963 ◽  
Author(s):  
Božidar Casar ◽  
Eduard Gershkevitsh ◽  
Ignasi Mendez ◽  
Slaven Jurković ◽  
M. Saiful Huq
Keyword(s):  
Correction Factors ◽  
Photon Beams ◽  
Output Factors ◽  
Novel Method

Investigation of field output factors using IAEA-AAPM TRS-483 code of practice recommendations and Monte Carlo simulation for 6 MV photon beams

2021 ◽  
pp. 1-6
Author(s):  
Sumalee Yabsantia ◽  
Sivalee Suriyapee ◽  
Nakorn Phaisangittisakul ◽  
Sornjarod Oonsiri ◽  
Taweap Sanghangthum ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Field Method ◽  
Correction Factors ◽  
Photon Beams ◽  
Small Field Dosimetry ◽  
Code Of Practice ◽  
Edge Detectors ◽  
Output Factors ◽  
Measured Field ◽  
Mc Simulation

Abstract Introduction: This study aims to experimentally determine field output factors using the methodologies suggested by the IAEA-AAPM TRS-483 for small field dosimetry and compare with the calculation from Monte Carlo (MC) simulation. Methods: The IBA-CC01, Sun Nuclear EDGE and IBA-SFD detectors were employed to determine the uncorrected and the corrected field output factors for 6 MV photon beams. Measurements were performed at 100 cm source to axis distance, 10 cm depth in water, and the field sizes ranged from 1 × 1 to 10 × 10 cm2. The use of field output correction factors proposed by the TRS-483 was utilised to determine field output factors. The measured field output factors were compared to that calculated using the egs_chamber user code. Results: The decrease in the percentage standard deviation of the measured three detectors was observed after applying the field output correction factors. Measured field output factors using CC01 and EDGE detectors agreed with MC values within 3% for field sizes down to 1 × 1 cm2, except the SFD detector. Conclusions: The corrected field output factors agree with the calculation from MC, except the SFD detector. CC01 and EDGE are suitable for determining field output factors, while the SFD may need more implementation of the intermediate field method.

Determination of correction factors for a 2D diode array device in MV photon beams

2009 ◽  
Vol 36 (2) ◽  
pp. 523-529 ◽  
Author(s):  
Xiaodong Zhou ◽  
Stefan Both ◽  
Timothy C. Zhu
Keyword(s):  
Diode Array ◽  
Correction Factors ◽  
Photon Beams

TU-EE-A2-01: Determination of Output Factors for Small Photon Beams

2005 ◽  
Vol 32 (6Part17) ◽  
pp. 2108-2108
Author(s):  
O Sauer ◽  
J Wilbert ◽  
D Laqua
Keyword(s):  
Photon Beams ◽  
Output Factors

Precision dosimetry for narrow photon beams used in radiosurgery-Determination of Gamma Knife®output factors

2002 ◽  
Vol 29 (9) ◽  
pp. 2080-2089 ◽  
Author(s):  
Andreas Mack ◽  
Stefan G. Scheib ◽  
Jörg Major ◽  
Stefano Gianolini ◽  
Gyorgy Pazmandi ◽  
...  
Keyword(s):  
Gamma Knife ◽  
Photon Beams ◽  
Output Factors

Determination of ion recombination correction factors for a liquid ionization chamber in megavoltage photon beams

2015 ◽  
Vol 66 (9) ◽  
pp. 1439-1447
Author(s):  
Sang Hyoun Choi ◽  
Kum-Bae Kim ◽  
Young Hoon Ji ◽  
Chan Hyeong Kim ◽  
Seonghoon Kim ◽  
...  
Keyword(s):  
Ionization Chamber ◽  
Correction Factors ◽  
Photon Beams ◽  
Liquid Ionization Chamber ◽  
Ion Recombination ◽  
Liquid Ionization
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