The combination of an electrospray ion source and an electrostatic storage ring for lifetime and spectroscopy experiments on biomolecules

2002 ◽  
Vol 73 (3) ◽  
pp. 1284-1287 ◽  
Author(s):  
Jens Ulrik Andersen ◽  
Preben Hvelplund ◽  
Steen Brøndsted Nielsen ◽  
Shigeo Tomita ◽  
Helge Wahlgreen ◽  
...  
Keyword(s):  
Storage Ring ◽  
Ion Source ◽  
Electrostatic Storage Ring

The double electrostatic ion ring experiment: A unique cryogenic electrostatic storage ring for merged ion-beams studies

2011 ◽  
Vol 82 (6) ◽  
pp. 065112 ◽  
Author(s):  
R. D. Thomas ◽  
H. T. Schmidt ◽  
G. Andler ◽  
M. Björkhage ◽  
M. Blom ◽  
...  
Keyword(s):  
Storage Ring ◽  
Ion Beams ◽  
Electrostatic Storage Ring

The KACST Heavy-Ion Electrostatic Storage Ring

2011 ◽  
Author(s):  
A. A. Almuqhim ◽  
S. M. Alshammari ◽  
M. O. A. El Ghazaly ◽  
A. I. Papash ◽  
C. P. Welsch ◽  
...  
Keyword(s):  
Storage Ring ◽  
Heavy Ion ◽  
Electrostatic Storage Ring

scholarly journals Stable operating conditions for a passive desktop sized electrostatic storage ring

2012 ◽  
Vol 388 (14) ◽  
pp. 142013
Author(s):  
T J Reddish ◽  
M R Sullivan ◽  
P Hammond ◽  
P A Thorn ◽  
G Arora
Keyword(s):  
Storage Ring ◽  
Operating Conditions ◽  
Stable Operating ◽  
Electrostatic Storage Ring

scholarly journals Photodissociation of orange I monoanion studied using an electrostatic storage ring

2017 ◽  
Vol 875 ◽  
pp. 032035
Author(s):  
M. Saito ◽  
T. Tanabe ◽  
M. Lintuluoto ◽  
E. B. Starikov ◽  
K. Noda ◽  
...  
Keyword(s):  
Storage Ring ◽  
Electrostatic Storage Ring

Preparatory measurements for a test of time dilation in the ESRThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at École de Physique, les Houches, France, 30 May – 4 June, 2010.

2011 ◽  
Vol 89 (1) ◽  
pp. 85-93 ◽  
Author(s):  
B. Botermann ◽  
C. Novotny ◽  
D. Bing ◽  
C. Geppert ◽  
G. Gwinner ◽  
...  
Keyword(s):  
Laser Spectroscopy ◽  
Storage Ring ◽  
Ion Beam ◽  
Double Resonance ◽  
Ion Source ◽  
Time Dilation ◽  
Particle Accelerator ◽  
Resonance Spectroscopy ◽  
Doppler Shifts ◽  
Experimental Storage Ring

We present preparatory measurements for an improved test of time dilation at the experimental storage ring (ESR) at GSI in Darmstadt. A unique combination of particle accelerator experiments and laser spectroscopy is used to perform this test with the highest precision. 7Li+ ions are accelerated to 34% of the speed of light at the GSI Helmholtzzentrum für Schwerionenforschung and stored in the experimental storage ring. The forward and backward Doppler shifts of an electric dipole transition of these ions are measured with laser spectroscopy techniques. From these Doppler shifts, both the ion velocity β = ν/c and the time dilation factor [Formula: see text] can be derived for testing Special Relativity. Two laser systems have been developed to drive the 3S1→3P2 transition in 7Li+. Moreover, a detector system composed of photomultipliers, both to monitor the exact laser ion beam overlap as well as to optimize fluorescence detection, has been set up and tested. We investigate optical-optical double-resonance spectroscopy on a closed Λ-type three-level system to overcome Doppler broadening. A residual, broadened fluorescence background caused by velocity-changing processes in the ion beam is identified, and a background subtraction scheme implemented. At the present stage the experimental sensitivity, although already comparable with previous measurements on slower ion beams at the TSR storage ring that led to [Formula: see text] < 8.4 × 10–8, suffer from a poor signal-to-noise ratio. Modifications of the ion source as well as the detection system are discussed that promise to improve the sensitivity by one order of magnitude.

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