Title :
Revised relationship between R50 and E0 for electron beams
Author :
Rogers, D.W.O. ; Kawrakow, Iwan ; Walters, B.R.B.
Author_Institution :
Inst. for Nat. Meas. Stand., Nat. Res. Council of Canada, Ottawa, Ont., Canada
Abstract :
A new Monte Carlo calculated relationship between R50 and E0 for monoenergetic radiotherapy electron beams is presented based on using the EGSnrc code which is an improved version of EGS4. The new values of R50 for a given incident energy are up to 2% more than the previously calculated values although the overall shape after matching R50 values is not changed significantly
Keywords :
Monte Carlo methods; dosimetry; electron beam applications; radiation therapy; EGSnrc code; Monte Carlo calculated relationship; broad parallel beams; depth-dose curve; electron beam dosimetry; improved EGS4 code; mean energy of electrons; monoenergetic radiotherapy electron beams; point source beams; spin effects; water phantom; Councils; Dosimetry; Electromagnetic scattering; Electron beams; Energy measurement; Marine vehicles; Measurement standards; Monte Carlo methods; Particle scattering; Shape;
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.2000.897912
