1. Institute
of Physical Engineering, Brno University of Technology, Technická
2896/2, 61669 Brno, Czech Republic
2. CEITEC
BUT, Brno University of Technology, Technická 3058/10, 61600 Brno, Czech Republic
3. Tascon GmbH, Mendelstr. 17, 48149 Münster, Germany
4. ION-TOF GmbH, Heisenbergstr. 15, 48149 Münster, Germany
5. Institute
of Experimental Physics, Johannes Kepler University Linz, Altenberger
Straße 69, A-4040 Linz, Austria