Detector comparison for small field output factor measurements in flattening filter free photon beams

2013 ◽  
Vol 109 (3) ◽  
pp. 356-360 ◽  
Author(s):  
Wolfgang Lechner ◽  
Hugo Palmans ◽  
Lukas Sölkner ◽  
Paulina Grochowska ◽  
Dietmar Georg
2015 ◽  
Vol 115 ◽  
pp. S425-S426
Author(s):  
D. Mateus ◽  
G. Beyer ◽  
S. Vieira ◽  
C. Greco

2018 ◽  
Vol 49 ◽  
pp. 139-146 ◽  
Author(s):  
G. Reggiori ◽  
A. Stravato ◽  
P. Mancosu ◽  
F. Lobefalo ◽  
L. Paganini ◽  
...  

2017 ◽  
Vol 3 (2) ◽  
pp. 287-290
Author(s):  
Michael Schaks ◽  
Johannes Zähle ◽  
Martin Janich ◽  
Patrick Hübsch ◽  
Nico Homonnay ◽  
...  

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.


2005 ◽  
Vol 32 (6Part2) ◽  
pp. 1896-1896 ◽  
Author(s):  
O Vassiliev ◽  
U Titt ◽  
S Kry ◽  
F Poenisch ◽  
M Gillin ◽  
...  

2006 ◽  
Vol 33 (6Part23) ◽  
pp. 2292-2292 ◽  
Author(s):  
O Vassiliev ◽  
U Titt ◽  
M Gillin ◽  
R Mohan

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