backTandem accelerators make very efficient use of the accelerator voltage. Initially, negative ions are accelerated towards the middle of the machine (positive electrode), where they are changed into positive ions by means of a special technique. These positive ions are then accelerated once more towards the end of the machine using the same accelerator voltage.
| Manufacturer | High Voltage Engineering Europa B.V./Niederlande, Amersfoord |
| Type | 2 Megavolt (MV) „T“ shaped – tandetron |
| Terminal voltage | 0.1 – 2.0 MV |
| Ion energy | |
| Protons | 0.2 MeV – 4.0 MeV |
| Deuterons | 0.2 MeV – 4.0 MeV |
| Helium | 0.8 MeV – 6.0 MeV |
| Max. pulsrate | 2.5 Mhz |
| Beam current at target position | 2 – 50 µA DC |
Tandem accelerator
Low-energy beam line