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Since early 2007 a new version of the Anisotropic Analytical Algorithm (AAA) for photon dose calculations was released by Varian Medical Systems for clinical usage on Elekta linacs and also, with some restrictions, for Siemens linacs. Basic validation studies were performed and reported for three beams: 4,6 and 15MV for an Elekta Synergy, 6 and 15MV for a Siemens Primus and, as a reference, for 6...
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