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Different “Times”:
➔
Treatment slots: time from the patient entering the bunker, until leaving the bunker
➔
Total treatment time: time from the first MV photon hitting the patient until the last photon,
includes gantry rotation without beam
➔
Beam-on time: time the beam is actually on
➔
Dose accumulation pattern: the way a tissue volume is accumulating dose from primary
beam during treatment
Biological efficiency loss