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Ion Sources
Three generations of the room-temperature EBIT/EBIS (Electron Beam Ion Trap/Source) type, the Dresden EBIT, Dresden EBIS, and Dresden EBIS-A are available
Any ion can be produced limited only by a maximum charge state. The Dresden EBIT/EBIS supply bare ions for elements with an atomic number of up to 28, helium-like ions for ions such as krypton and neon-like ions for high-Z elements.
Dresden EBIT |
Dresden EBIS |
Dresden EBIS-A |
The design of the ion sources is based on permanent magnets resulting in a very compact design. Thus, it is portable, simple to operate, and both initial and maintenance costs are low.
The vacuum system is based on standard UHV techniques that allows trap operation at
pressures in the range of 10-10 mbar. Working gases are admitted through two separate precision leak valves.
| Parameters |
Dresden EBIT |
Dresden EBIS |
Dresden EBIS-A |
| Trap length |
2 cm |
6 cm |
6 cm |
| Maximum electron current |
50 mA |
250 mA |
500 mA |
| Maximum electron energy |
15 keV |
25 keV |
30 keV |
| Permanent magnets |
SmCo |
NdFeB |
NdFeB |
| Magnetic induction on axis |
250 mT |
400 mT |
600 mT |
The produced ions can be extracted in both pulse mode (pulse width from 2 µs up to 40 µs) and leaky mode (DC mode). In addition, the ion sources feature a very small emittance of the ion beam which is in the order of 10 mm mrad.
High-current low-emittance beams of low charged particles such as protons, alpha particles, and molecular fragments are provided in DC mode.
Since the electron energy can be adjusted the Dresden EBIT/EBIS are excellent sources of specific electromagnetic radiation such as x-rays, ultraviolett, EUV and visible light.
The ion source supplies ions from gaseous elements and metals in a wide range of both the ion charge state and their kinetic energy (10 eV x q to 40 keV x q).
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