Title: Fluorescence Detection as a new Diagnostics Tool for Electrostatic Ion Beam Traps
Authors: Lechner, Simon 
Fischer, Paul 
Heylen, Hanne 
Lagaki, Varvara 
Maier, Franziska 
Plattner, Peter 
Rosenbusch, Marco 
Sels, Simon 
Wienholtz, Frank 
Wolf, Robert N. 
Nörtershäuser, Wilfried 
Schweikhard, Lutz 
Malbrunot-Ettenauer, Stephan 
Category: Original Research Article
Keywords: MIRACLS; Collinear laser spectroscopy; MR-ToF devices; EIBT; Exotic radionuclides; Collision-induced fluorescence; Ion self-bunching
Issue Date: 2019
Journal: Hyperfine Interactions 
Abstract: 
In the development towards the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS), an optical detection region for the observation of fluorescent light is added to an electrostatic ion beam trap (EIBT). In addition to its use for highly sensitive collinear laser spectroscopy, this fluorescence detection is introduced as a diagnostics tool for the study of the ion dynamics inside an EIBT. First measurements of collision-induced fluorescence in an EIBT demonstrate the technique’s diagnostics power by tracking the evolution of an ion bunch’s temporal width over its storage time inside the ion trap. Thereby, the time-focus point of the ion bunch can be determined and the influence of space-charge effects in the EIBT can be investigated. Good qualitative agreement is obtained between the measured trend of temporal widths and the simulations of the ions’ trajectories in the trap. Particularly, the observation of self-bunching on the ion-bunch structure for many simultaneously stored ions is reproduced.
DOI: 10.1007/s10751-019-1628-1
ISSN: 0304-3843
Organisation: E130 - Fakultät für Physik 
License: CC BY 4.0 CC BY 4.0
Publication Type: Article
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