Progress in Medical Physics

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Table. 4.

Table. 4.

Statistical values of the mechanical accuracy evaluation results

Item Field size (Y) Field size (X) Couch Collimator Gantry
Average (diff.) –0.40 0.11 0.49 0.52 0.85
Min. value (diff.) –1.90 –1.80 0.00 0.00 0.19
Max value (diff.) 1.9 1.7 1.41 1.63 1.95
Standard deviation 0.77 0.57 0.31 0.4 0.42

Unit: mm.

Progress in Medical Physics 2020;31:20-8 https://doi.org/10.14316/pmp.2020.31.2.20
© 2020 Progress in Medical Physics