Total Body Irradiation with Step Translation and Dynamic Field Matching

Table 1

The optimal overlap widths of the two dynamic field edges matched at a distance of 220 cm from the radiation source. When overlapped optimally, the dose variation is within ±10% at the field junction.

Leaf motion length (cm)	2	3	4	5
Optimal overlap width (cm)	3.5	5.0–5.5	6.5–7.5	8.5–10.0