TY  - JOUR
AU  - Ueberholz, Ken
AU  - Bozyk, Lars
AU  - Bussmann, Michael
AU  - Eizenhöfer, Noah
AU  - Hannen, Volker
AU  - Horst, Max Henrik
AU  - Kiefer, Daniel
AU  - Kiefer, Nils
AU  - Klammes, Sebastian
AU  - Kühl, Thomas
AU  - Langfeld, Benedikt
AU  - Loeser, Markus
AU  - Ma, Xinwen
AU  - Nörtershäuser, Wilfried
AU  - Sanchez Alarcon, Rodolfo Marcelo
AU  - Schramm, Ulrich
AU  - Siebold, Mathias
AU  - Spiller, Peter
AU  - Steck, Markus
AU  - Stöhlker, Thomas
AU  - Walther, Thomas
AU  - Wang, Hanbing
AU  - Weinheimer, Christian
AU  - Wen, Weiqiang
AU  - Winters, Danyal
TI  - XUV Fluorescence Detection of Laser-Cooled Stored Relativistic Ions
JO  - Atoms
VL  - 11
IS  - 2
SN  - 2218-2004
CY  - Basel
PB  - MDPI
M1  - GSI-2024-00075
SP  - 39
PY  - 2023
N1  - This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
AB  - An improved moveable in vacuo XUV fluorescence detection system was employed for the laser cooling of bunched relativistic (𝛽 = 0.47) carbon ions at the Experimental Storage Ring (ESR) of GSI Helmholtzzentrum Darmstadt, Germany. Strongly Doppler boosted XUV fluorescence (∼90 nm) was emitted from the ions in a forward light cone after laser excitation of the 2s–2p transition (∼155 nm) by a new tunable pulsed UV laser system (257 nm). It was shown that the detected fluorescence strongly depends on the position of the detector around the bunched ion beam and on the delay (∼ns) between the ion bunches and the laser pulses. In addition, the fluorescence information could be directly combined with the revolution frequencies of the ions (and their longitudinal momentum spread), which were recorded using the Schottky resonator at the ESR. These fluorescence detection features are required for future laser cooling experiments at highly relativistic energies (up to 𝛾∼ 13) and high intensities (up to 1E11 particles) of ion beams in the new heavy ion synchrotron SIS100 at FAIR.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.3390/atoms11020039
UR  - https://repository.gsi.de/record/348026
ER  -