Freiburg 2024 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 15: Poster I
A 15.15: Poster
Dienstag, 12. März 2024, 17:00–19:00, Tent A
Coincidence experiments on atomic collisions using the TrapREMI. — •Medina Cristian1, Schotsch F.1, Zebergs I.1, Augustin S.2, Lindenblatt H.1, Hoibl L.3, Djendjur D.3, Schroeter C.D.1, Pfeifer T.1, and Moshammer R.1 — 1Max-Planck-Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg — 2Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland — 3Department of Physics and Astronomy, Ruprecht-Karls University , 69120 Heidelberg, Baden-Württemberg, Germany
The reaction dynamics of collisions between atomic argon ions and various atomic projectiles have been investigated using the TrapREMI [1]. This setup combines an electrostatic ion beam trap (EIBT) [2,3] with a reaction microscope (REMI) [4]. Fast argon ions (2 keV) are stored in the EIBT in a linear oscillatory motion while inside the REMI; argon, helium, or neon atomic beams are crossed with the ion bunch. The resulting reaction products are detected in coincidence allowing the reconstruction of their 3D momenta. Additionally, with the implementation of a new ion source that allows higher ion current and an additional gas jet using different noble gasses, Ar+-Atom collisions were performed. Initial results showed that mainly singly-charged argon ion captures an electron, i.e. from the neutral argon beam. Coincidence measurements for all other gasses are similarly shown.
References [1] F. Schotsch, Rev. Sci. Instrum. 92 (2021) [2] D. Zajfman, Phys. Rev. A 55 (1997) [3] M. Lange, Rev. Sci. Instrum. 81 (2010) [4] F. Schotsch, Ph.D. thesis, Heidelberg (2020).
Keywords: REMI; Collisions; Energy Transfer; Ion Trap