Diploma, master and bachelor theses
Thesis within the Stored and Cooled Ions Division:
High-Q detection system for single stored ions
Within the working group, several developments concerning image current detection systems with single-ion sensitivity have been made. Those are based on a superconducting inductance coupled to a Penning trap for a narrow-band detection of the motional frequencies of the stored ions. To improve the signal-to-noise ratio, a very high quality factor Q is needed. Therefore, the development of a toroidal inductor is planned, which yields the best geometry concerning unwanted energy dissipation. Additionally, the signal will be coupled to a SQUID amplifier, in order to not disturb the Q-value.
Tasks:- Design of a toroidal coil with high Q-value
- Set up and implementing the signal processing including a commercial SQUID device
- Test and characterisation of the system in an off-line setup
Techniques:
- Mass spectrometry and g-factor measurements using narrow-band FT-ICR
- Vacuum technique
- Low temperature techniques and pulse tube coolers
- Semiconductor electronics
- Superconductors, SQUID devices
- Analogue and digital signal processing
If you are interested please contact Klaus Blaum (
).