Title :
Effects of X-ray scatter on the response of EC-L film and EPIDs
Author :
Munro, P. ; Mulligan, M. ; Heerema, T.
Author_Institution :
London Regional Cancer Centre, Ont., Canada
Abstract :
We have measured technique charts for EC-L film as a function of patient thickness and field size. These measurements have resulted in important findings about the response of EC-L films to high energy radiation beams and resulted in an improved method to measure technique charts. Also, because the X-ray detectors of TV camera-based EPIDs and amorphous silicon EPIDs are identical to EC-L film, our findings suggest that the design of these devices should be modified if they are to be used for transit dosimetry
Keywords :
X-ray detection; dosimeters; dosimetry; phosphors; radiation therapy; EC-L film response; EPID response; TV camera-based EPID; X-ray detectors; X-ray scatter effects; amorphous silicon EPID; electronic cassette; field size; high energy radiation beams; image receptor; patient thickness; phosphor; technique charts; transit dosimetry; Atomic layer deposition; Cancer; Light scattering; Optical films; Optical scattering; Particle scattering; Phosphors; Photodiodes; Size measurement; X-ray scattering;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.897911
