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. 2015 Sep 8;16(5):14–34. doi: 10.1120/jacmp.v16i5.5768

Table 9.

Basic TPS validation tests for electron beams and minimum tolerance values

Test Objective Description Tolerance
8.1 Basic model verification with shaped fields Custom cutouts at standard and extended SSDs
3%/3 mm
8.2 Surface irregularities obliquity Oblique incidence using reference cone and nominal clinical SSD 5%
8.3 Inhomogeneity test Reference cone and nominal clinical SSD 7%