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Star dose measurements – machine variability
58 of Varian Clinac 2100 6 MV
102
103
104
105
106
eso
Measurement variations, Star scans for 58 of Varian Clinac 2100 6 MV
Red lines are individual star scans (21 per machine, 10° intervals)
+1 sd+
Median
-1 sd-
21
2
4
6
8
10
12
14
Off axis distance
@
cm
D
99
100
101
ler . D