Beam quality conversion factors for parallel-plate ionization chambers in MV photon beams

2012 ◽  
Vol 39 (3) ◽  
pp. 1618-1631 ◽  
Author(s):  
B. R. Muir ◽  
M. R. McEwen ◽  
D. W. O. Rogers
Keyword(s):  
Parallel Plate ◽  
Beam Quality ◽  
Photon Beams ◽  
Ionization Chambers ◽  
Conversion Factors

scholarly journals Calculated beam quality correction factors for ionization chambers in MV photon beams

2020 ◽  
Vol 65 (7) ◽  
pp. 075003 ◽  
Author(s):  
J Tikkanen ◽  
K Zink ◽  
M Pimpinella ◽  
P Teles ◽  
J Borbinha ◽  
...  
Keyword(s):  
Beam Quality ◽  
Correction Factors ◽  
Photon Beams ◽  
Ionization Chambers

Absorbed-dose beam quality conversion factors for cylindrical chambers in high energy photon beams

2000 ◽  
Vol 27 (12) ◽  
pp. 2763-2779 ◽  
Author(s):  
J. P. Seuntjens ◽  
C. K. Ross ◽  
K. R. Shortt ◽  
D. W. O. Rogers
Keyword(s):  
Beam Quality ◽  
Absorbed Dose ◽  
High Energy ◽  
High Energy Photon ◽  
Photon Beams ◽  
Energy Photon ◽  
Conversion Factors

Monte Carlo calculation of beam quality correction factors for PTW cylindrical ionization chambers in photon beams

2020 ◽  
Vol 65 (20) ◽  
pp. 205005
Author(s):  
Vicent Giménez-Alventosa ◽  
Vicente Giménez ◽  
Facundo Ballester ◽  
Javier Vijande ◽  
Pedro Andreo
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Calculation ◽  
Beam Quality ◽  
Correction Factors ◽  
Photon Beams ◽  
Ionization Chambers

scholarly journals Monte Carlo calculated beam quality correction factors for two cylindrical ionization chambers in photon beams

2022 ◽  
Vol 94 ◽  
pp. 17-23
Author(s):  
Mohamad Alissa ◽  
Klemens Zink ◽  
Frédéric Tessier ◽  
Andreas A. Schoenfeld ◽  
Damian Czarnecki
Keyword(s):  
Monte Carlo ◽  
Beam Quality ◽  
Correction Factors ◽  
Photon Beams ◽  
Ionization Chambers

scholarly journals Comparative investigation of beam quality index Q on flattening filter and flattening filter free 6 and 15 MV photon beams of an medical linear accelerator

2017 ◽  
Vol 3 (2) ◽  
pp. 287-290
Author(s):  
Michael Schaks ◽  
Johannes Zähle ◽  
Martin Janich ◽  
Patrick Hübsch ◽  
Nico Homonnay ◽  
...  
Keyword(s):  
Linear Accelerator ◽  
Quality Index ◽  
Beam Quality ◽  
Comparative Investigation ◽  
Central Axis ◽  
Photon Beams ◽  
Medical Linear Accelerator ◽  
Flattening Filter Free ◽  
Flattening Filter ◽  
Beam Quality Correction Factor

AbstractAn Elekta Synergy LINAC was used to investigate the beam quality index Q and the beam quality correction factor kQ, which is used for absolute dosimetry, in off-axis photon fields. It was found that the beam quality index Q of the photon energies with flattening filter decreases with increasing distance to the central axis, at 6 MV by 4.27% and at 15 MV by 3.98% inside a range of 15 cm off-axis. The beam quality index for flattening filter free photon fields also decreases with increasing distance to the central axis. In this case Q changed only by 1.01% inside the above range.

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