Table 1 The technical specifications of the devices
Device | Manufacture | Maximum KV | Year of installation | AEC system | Total filtration thickness (mm Al) |
|---|---|---|---|---|---|
1 | TOSHIBA | 150 | 2018 | Yes(not used) | 2.4 |
2 | SEMENS | 150 | 2018 | NO | 1 |
3 | SHIMADZU | 150 | 2019 | NO | 2.5 |
4 | Varian | 150 | 2019 | NO | 2.7 |