Table 2.
GPR of ArcCHECK measurements according to the number of control points.
| Number of control points | 25 | 49 | 73 | 91 | 145 | 241 |
|---|---|---|---|---|---|---|
| GPR (%) | ||||||
| 6 MV-FFF | 90.8 | 92.4 | 93.1 | 93.1 | 97.0 | 98.5 |
| 10 MV-FFF | 84.6 | 89.2 | 90.8 | 91.5 | 89.2 | 94.6 |
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