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Recently… New identical Linac…
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A new Linac is introduced, identical to an existing Linac.
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Linac modelled in TPS for FF beams based on measurement
data from existing linac.
However, profiles were from FF
beams but pdds from FFF beams! Not clear yet whether due
to auto copy mistake (software error) or manual copy
mistake
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After 1 year this error was discovered by scientific research
measurements.
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Absolute dose deviations were 3-5%.