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Table 1 Data used to measure the SPR

From: A method for in vivo treatment verification of IMRT and VMAT based on electronic portal imaging device

fs (cm2)

t (cm)

r (cm)

L (cm)

3 × 3, 4 × 4, 5 × 5, 8 × 8, 10 × 10, 12 × 12, 15 × 15, 18 × 18, 20 × 20

0, 3, 5, 8, 10, 12, 15, 18, 20, 25, 30, 35, 40

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

20, 25, 30, 35, 40, 45, 50