Hannover 2010 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 9: Ionenfallen und FT-IZR-MS, Moleküle, Cluster und Reaktionen
MS 9.3: Vortrag
Freitag, 12. März 2010, 11:15–11:30, F 428
CTF: a new tool for molecular and cluster physics — •Sebastian Menk1, Klaus Blaum1, Florian Fellenberger1, Michael Froese1, Manfred Grieser1, Oded Heber2, Michael Lange1, Felix Laux1, Dimitry Orlov1, Thomas Sieber1, Michael Rappaport2, Robert von Hahn1, Jozef Varju1, Andreas Wolf1, and Daniel Zajfman2 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1,69117 Heidelberg — 2Weizmann Institut of Science, Rehovot, 76100, Israel
One major goal of constructing the electrostatic Cryogenic Trap for Fast ion beams (CTF) was the development of technology and methods for the construction of the Cryogenic Storage Ring (CSR) which is currently being built. Ions are trapped between two electrostatic mirror electrodes allowing the storage of up to 20 keV ion beams for over 5 minutes. The ability of reaching extremely low vacuum conditions with this kind of assembly has been verified by measuring storage lifetimes and neutral particle count rates of a trapped 7.1 keV N2+ ion beam. A residual gas density of about 2000 cm−3 (8 · 10−14 mbar for same density at room temperature) and the low temperatures below 15 K also gave the opportunity to perform various measurements under previously unavailable conditions. A few highlights of the performed measurements including, for instance, radiative cooling measurements of hot aluminum cluster anions Aln− will be presented.