Darmstadt 2008 – scientific programme
Parts | Days | Selection | Search | Downloads | Help
A: Fachverband Atomphysik
A 23: Precision spectroscopy II
A 23.1: Talk
Thursday, March 13, 2008, 14:00–14:15, 3C
Design of a stable battery-based voltage — •Anke Wagner1, Klaus Blaum1,2, Wolfgang Quint2, Birgit Schabinger1, and Sven Sturm1 — 1Institute of Physics, Johannes Gutenberg-University, 55099 Mainz, Germany — 2GSI Darmstadt, 64291 Darmstadt, Germany
For the high-precision measurement of the magnetic moment of the electron bound in highly-charged hydrogen-like calcium ions highly stable voltage sources are needed. [1] For those again a very stable supply voltage is required, which has to be independent of the electricity network in order to avoid noise and ground loops. Therefore, a battery-based voltage source was designed. Only one car-battery (12V) was used to generate the required output voltages (±15V, ±5V) by converting the dc-voltage into ac-voltage, amplifying, commutating and, finally, flattening it again. To control and monitor the voltages as well as the currents, a microcontroller, connected to the PC, is used. The circuit diagrams and the achieved voltage stability will be presented.
[1] M. Vogel et al., Nucl. Inst. Meth. B 235, 7 (2005)