Radiation quality

Voltage (kV)

Additional filtration (mmAl)

Attenuation (%)

RQR 3

50

2.4

17.7(5)

RQR 5

70

2.8

15.3(4)

RQR 8

100

3.2

13.1(4)

RQR 10

150

4.2

11.0(3)