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O: Fachverband Oberflächenphysik
O 13: Focus Session: Ion Beam Interaction with Surfaces and 2D Materials II
O 13.5: Vortrag
Montag, 27. März 2023, 16:15–16:30, GER 38
A new material science target station for swift and highly charged ions at CRYRING@ESR — •Kevin Vomschee1, Michael Wagner2, Nils Ulrich2,3, Frieder Koch2, Sadra Kour1, André Maas1, Christina Trautmann2,3, Marika Schleberger1, and Lars Breuer1 — 1Univ. Duisburg-Essen — 2GSI Helmholtzzentrum für Schwerionenforschung — 3Technische Univ. Darmstadt
This contribution describes the new target station MSS@CRYRING ("Material Science Station at CRYRING") operated at GSI. The new setup at the storage ring CRYRING allows the irradiation of samples with highly charged ions up to completely stripped uranium (U92+) with full control over the kinetic energy of the projectile between keV and GeV. This allows the investigation of the specific effect of the kinetic and potential energy. The latter is dissipated in a very shallow volume upon impact while at high kinetic energies the entire bulk material is irradiated.
We report on results from the first beam times using the extracted beam at the new target station. For testing the setup, polymer films were irradiated with 107Ag47+ at a kinetic energy of 5.9 MeV/u. Applying track etching techniques the number of ions per cm2 was analyzed using scanning electron microscopy. Comparing these results with the number of ions extracted from the storage ring as deduced from a DC-transformer and a Schottky detector gives an ion transmission of 53.7 % and a maximum flux of 3· 107 cm−2 per pulse.