IMRT 2018

Add-on MLCs

Brain- LAB m3

Radionics

Siemens** (MRC) m -MLC

Siemens (MRC) Moduleaf

3D Line (Wellhöfer)

Direx AccuLeaf

Company

# Leaf pairs

26

31

40

40

24

36

Field size (cm 2 )

10 x 10

10 x 12

7.3 x 6.4

12 x 10

11 x 10

11 x 10

Overcenter travel (cm)

5

No data

1.4

5.5

2.5

3,3

Leaf width (mm)

3.0 – 5.5

4.0

1.6

2.5

4.5

3,1-4,6

Leaf

trans-

< 4

< 2

< 1

< 1

0.5

< 2

mission (%)

Maximum

1.5

2.5

1.5

3

1

1.5

speed (cm/s)

Clearance

to

31

35

30

30

30

?

isocenter (cm)

Total weight (kg)

31

35

38

39.7

35

31

Geometric design

Single focused

Single focused

Parallel

Single focused

Double focused

Two sets of leaf pairs at 90 °