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Table 4 Technical characteristics of RapidArc and conventional plans

From: Large volume unresectable locally advanced non-small cell lung cancer: acute toxicity and initial outcome results with rapid arc

 

RA

Number of arcs or fields

2

Arcs length [°] whole plan

401 ± 166

Beam energy

6 MV

Delivery time [s]

133 ± 7

MU/fraction

391 ± 68

MU/Gy

190 ± 38

Dose Rate [MU/min]

239 ± 51

Gantry speed [deg/sec]

4.79 ± 0.02

Collimator angle [°]

19 ± 8

Mean leaf aperture [cm]

5.3 ± 1.5

Mean CP area [cm 2 ]

98 ± 30

Mean field area [cm 2 ]

337 ± 91

  1. MU: monitor units, CP: control point