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. 2007 Oct 24;8(4):76–95. doi: 10.1120/jacmp.v8i4.2693

Table 1.

Jaw settings for tests of multileaf collimator scatter at off‐center points inside and outside of field for symmetric and asymmetric fields

Jaw settings (cm)
x1 x2 y1 y2
Symmetric fields
2.5 2.5 2.5 2.5
5 5 5 5
7 7 7 7
7 7 10 10
7 7 15 15
7 7 19 19
x‐jaws symmetric, y‐jaws asymmetric
7 7 15 19
7 7 11 19
7 7 7 19
7 7 3 19
y1‐jaw covers the detector, x‐jaws symmetric
7 7
3
19
7 7
7
19
7 7
10
19
7 7
10
14
7 7
10
10
x2‐jaw covers the detector, y‐jaws symmetric
16
2
2.5 2.5
16
2
5 5
16
2
7 7
16
2
9 10
16
2
15 15
16
2
19 19
x2‐jaw covers the detector, y‐jaws asymmetric
16
2
15 19
16
2
11 19
16
2
7 19
16
2
3 19
x2‐jaw and y1‐jaw cover the detector
16
2
3
19
16
2
7
19
16
2
10
19
16
2
10
14