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. 2013 Jan 7;14(1):273–288. doi: 10.1120/jacmp.v14i1.4077

Table 1.

TrueBeam energy match analysis.

Energ (MV) Data Field Size (
cm×cm
)
TrueBeam #1 TrueBeam #2 TrueBeam #3 Average St. Dev. (s) 95% CI Ave.
4×4
1.35 1.40 1.37 1.37 0.025
[1.311.44]
dmax(cm)
10×10
1.47 1.40 1.36 1.41 0.056
[1.271.55]
40×40
1.28 1.37 1.30 1.32 0.047
[1.201.43]
4×4
61.3 61.5 61.4 61.4 0.100
[61.261.6]
6
PDD10(%)
10×10
66.1 66.2 66.1 66.1 0.058
[66.066.3]
40×40
71.7 71.9 71.9 71.8 0.115
[71.572.1]
4×4
0.626 0.623 0.625 0.625 0.0015
[0.6210.628]
TPR20/10
10×10
0.666 0.667 0.665 0.666 0.0010
[0.6640.668]
40×40
0.746 0.744 0.745 0.745 0.0010
[0.7430.747]
4×4
2.78 2.90 2.80 2.83 0.064
[2.672.99]
dmax (cm)
10×10
2.77 2.80 2.76 2.78 0.021
[2.722.83]
40×40
2.07 2.00 2.00 2.02 0.040
[1.922.12]
4×4
74.6 74.9 75.1 74.9 0.252
[74.275.5]
15
PDD10(%)
10×10
76.7 76.8 76.6 76.7 0.100
[76.576.9]
10
40×40
76.9 77.0 76.8 76.9 0.100
[76.777.1]
4×4
0.731 0.732 0.729 0.731 0.0015
[0.7270.734]
TPR20/10
10×10
0.763 0.763 0.764 0.763 0.0006
[0.7620.765]
40×40
0.810 0.811 0.809 0.810 0.0010
[0.8080.812]
4×4
2.23 2.20 2.17 2.20 0.030
[2.132.27]
dmax (cm)
10×10
2.26 2.25 2.13 2.21 0.072
[2.032.39]
40×40
1.90 2.10 1.97 1.99 0.101
[1.742.24]
4×4
67.5 67.9 67.5 67.6 0.231
[67.168.2]
10 FFF
PDD10(%)
10×10
70.9 71.1 70.7 70.9 0.200
[70.471.4]
40×40
73.1 73.2 73.2 73.2 0.058
[73.073.3]
4×4
0.674 0.673 0.674 0.674 0.0006
[0.6720.675]
TPR20/10
10×10
0.705 0.703 0.707 0.705 0.0020
[0.7000.710]
40×40
0.744 0.741 0.745 0.743 0.0021
[0.7380.749]