Target Volume Determination 2015

Margin for systematic errors

2-D errors

3-D errors

Confidence level 1-D errors

80% 85% 90% 95%

1.28 Σ 1.44 Σ 1.64 Σ 1.96 Σ

1.79 Σ 1.95 Σ 2.15 Σ 2.45 Σ

2.16 Σ 2.31 Σ 2.50 Σ 2.79 Σ

Σ = SD of preparation/systematic errors