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) |