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. 2016 Nov 11;43(12):6491–6496. doi: 10.1118/1.4967344

TABLE V.

Consensus description of causes of failure.

Attribute 7% TLD, 7%/4 mm (%) 5% TLD, 5%/4 mm (%)
Systematic 11 (69) 21 (58)
Low 9 (56) 17 (47)
High 2 (13) 4 (11)
Setup/position 2 (13) 4 (11)
Locala 0 (0) 8 (22)
Globalb 3 (19) 3 (8)
a

Local errors included tests in which local phenomena caused only one TLD to fail, typically by a small margin (∼1%).

b

Global errors were those that resulted from multiple errors or irregular dose distributions.