Dose Course Book

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Star dose measurements – machine variability

12 Siemens Primus 10 MV

102

103

104

105

106

eso

Measurement variations, Star scans for 12 of Siemens Primus 10 MV

Red lines are individual star scans (21 per machine, 10° intervals)

+1 sd+

Median

-1 sd-

22

2

4

6

8

10

12

14

Off axis distance

@

cm

D

99

100

101

ler . D