Gantry Uncertainties

Isocenter Uncertainties

SAD Uncertanties

(degree)

(mm)

(cm)

Scenario 1: Gantry Rotation

Case 1

0.25

0

100

Case 2

0.5

0

100

Case 3

1

0

100

Case 4

2

0

100

Case 5

3

0

100

Scenario 2: Isocenter off center

Case 1

0

1

100

Case 2

0

2

100

Case 3

0

4

100

Case 4

0

6

100

Scenario 3: SAD Deviation

Case 1

0

0

99.5

Case 2

0

0

100.3

Case 3

0

0

102

Case 4

0

0

103

Baseline

0

0

100