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Table 7 EDW: minimum, maximum and average (± SD) percentage difference between GLAaS and Reference (Eclipse or ion chamber) in the flattened region.

From: Testing the portal imager GLAaS algorithm for machine quality assurance

 

GLAas vs Eclipse Mean ± SD [Range] [%]

GLAaS vs IonCh. Mean ± SD [Range] [%]

Angles 10 to 60 degree

  

Rmin = 100*(DminGLAaS-DminRef)/DminGLAaS

0.4 ± 1.6 [-2.0, +4.4]

-2.2 ± 2.3 [-5.5, -0.3]

Rmax = 100*(DmaxGLAaS-DmaxRef)/DmaxGLAaS

-1.5 ± 1.3 [-4.7, +0.5]

2.3 ± 1.2 [+1.0, +3.9]

Rave = 100*(DaveGLAaS-DaveRef)/DaveGLAaS

-0.1 ± 0.3 [-0.9, +0.1]

0.8 ± 0.3 [+0.5, +1.1]

min(100*(DGLAaS-DRef)/DGLAaS)

1.2 ± 1.2 [+0.5, +4.4]

-

max(100*(DGLAaS-DRef)/DGLAaS)

-1.7 ± 1.1 [-4.7, -0.5]

-

ave(100*(DGLAaS-DRef)/DGLAaS)

0.1 ± 0.2 [-0.2, +0.6]

-

Angles 10 to 45 degree

  

Rmin = 100*(DminGLAaS-DminRef)/DminGLAaS

-0.2 ± 0.7 [-2.0, +0.9]

-1.1 ± 0.8 [-2.0, -0.3]

Rmax = 100*(DmaxGLAaS-DmaxRef)/DmaxGLAaS

-1.1 ± 0.9 [-3.2, +0.5]

1.8 ± 0.7 [+1.0, +2.5]

Rave = 100*(DaveGLAaS-DaveRef)/DaveGLAaS

0.0 ± 0.2 [-0.4, +0.1]

0.6 ± 0.2 [+0.5, +0.8]

min(100*(DGLAaS-DRef)/DGLAaS)

0.8 ± 0.3 [+0.5, +1.4]

-

max(100*(DGLAaS-DRef)/DGLAaS)

-1.3 ± 0.8 [-3.2, -0.5]

-

ave(100*(DGLAaS-DRef)/DGLAaS)

0.0 ± 0.1 [-0.2, +0.2]

-