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A sample of three fractions delivered to the patient SBRT1 moving target for the 180‐degree gantry angle beam. The left column (non‐gated delivery) shows not only blurring of the dose over the target diodes, but also fraction‐to‐fraction variation (that is, between the rows). The right column (gated delivery) shows that dose blurring and fraction‐to‐fraction variation are reduced.
