Physics Bucharest 2017

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Wrong Plan in R&V System

1

measurement prediction

0.8

0.6

0.4

portal dose (a.u.)

0.2

0

shielding cord

-100 -50

0

50

100

measured PDI

off-axis distance (mm)

1

measurement prediction

0.8

0.6

0.4

portal dose (a.u.)

0.2

0

-100 -50

0

50

100

predicted PDI

off-axis distance (mm)

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