1. Precision Tests of Fundamental Interactions with Ion Trap Experiments
Wolfgang Quint
GSI Darmstadt and Univ. Heidelberg

2. HITRAP at the Experimental Storage Ring ESR
UNILAC
experiments with particles at rest or at low energies
cooler
Penning
trap
post-
decelerator
400 MeV/u
SIS
stripper
target
EXPERIMENTS WITH HIGHLY CHARGED IONS AND ANTIPROTONS AT EXTREMELY LOW ENERGIES:
g-factor measurements of the bound electron
laser spectroscopy
mass measurements of extreme accuracy
reaction microscope, collisions at very low velocities
surface studies and hollow-atom spectroscopy
x-ray spectroscopy
U73+
U91+
U91+
ESR
electron cooling and deceleration down to 4 MeV/u

3. HITRAP facility at ESR SPARC-EBIT Linac operation frequency
MHz
IH-deceleration
4 MeV/u  0.5 MeV/u
RFQ-deceleration
0.5 MeV/u  6 keV/u
Max. A/q 3
operation with antiprotons
YES, planned at FLAIR
g-factor trap
SPARC-EBIT
Other experimental setups H1-H6
Double-drift-buncher
IH-structure
RFQ
Cooler trap
HCI from ESR 4 MeV/u  0.5 MeV/u  6 keV/u

4. HITRAP: Technical design
to experiments
matching section
and cooler trap
Double-drift
buncher
IH section RFQ section 7m

5. HITRAP facility at GSI storage ring

6. HITRAP: Inter-digital H-mode (IH) structure
deceleration from
4 MeV/u to
0.5 MeV/u
4 MeV/u
0.5 MeV/u
6 keV/u

7. Double-drift-buncher
Commissioning of RFQ decelerator and
of cooler trap in progress
RFQ decelerator
HITRAP cooler trap
vertical beam line
Experiments
LEBT+ Cooler-trap
IH-structure+ MEBT
Double-drift-buncher
RFQ

8. HITRAP Cooler Penning trap
● electron cooling ● resistive cooling to T = 4 K
highly charged ions
from
HITRAP decelerator
cooled HCI
to HITRAP
experiments
extraction from cooler trap:
fast (ms) or slow (ms...sec)
U92+ e- e- 3

9. HITRAP Cooler Penning trap
● electron cooling ● resistive cooling to T = 4 K
highly charged ions
from
HITRAP decelerator
cooled HCI
to HITRAP
experiments
extraction from cooler trap:
fast (ms) or slow (ms...sec)
U92+ e- e- 3

10. B → 'experimental g-Factor of the bound electron in
a hydrogen-like ion
(nucleus has no spin, e.g. 12C5+, 16O7+, 28Si13+, 40Ca19+)
Larmor precession
frequency of the
bound electron:
Ion cyclotron frequency: B
→ 'experimental
g-factor'
→ comparison with theory
our
measurement
external input parameter

11. A single highly charged ion stored in a Penning trap

12. Triple Penning Trap System
7mm
Precision trap (PT)
Very homogeneous magnetic field
Analysis trap (AT)
Magnetic bottle for spin detection
~14 cm
Creation trap (CT)
In-trap ion creation of
highly-charged ions

13. Triple Penning Trap System
Precision trap (PT)
Very homogeneous magnetic field
Analysis trap (AT)
Magnetic bottle for spin detection
Creation trap (CT)
In-trap ion creation of
highly-charged ions

14. (GSI/Heidelberg collaboration)
g-Factor trap in Mainz
(GSI/Heidelberg collaboration)

15. 28Si13+ High-resolution cyclotron frequency measurement
of a single highly charged silicon ion
28Si13+

16. Multiphoton Ionization Studies
HILITE: Interaction of High-Intensity Laser Radiation with Trapped Ions
Multiphoton Ionization Studies
Helmholtz-Institut Jena
Friedrich-Schiller-Universität
Jena
Cooperation with
Sugam Kumar and C.P. Safvan,
IUAC Delhi

17. HILITE: Trap Electrodes
virtual trap meets real trap
Dec 2013

18. HILITE: Test of single-pass ion detector
Penning trap in a dry superconducting magnet
@ PHELIX, FLASH (II), JETI, POLARIS,... 1m

19. Precision Penning trap at HITRAP
7T superconducting magnet

20. Test of reservoir trap in an open Penning trap with highly charged argon ions
ArX+
ArX+
ArX+
Electrons
Argon Gas
Argon Gas
ArX+
ArX+
ArX+
Electrons

21. Transport into Spectroscopy Trap
Ar13+
Ar13+
Ar13+
Ar13+

22. Preliminary Mass Spectra

23. Training in specific new areas, or technical expertise
ion trapping techniques
low-temperature electronics
superconducting magnets
superconducting resonance circuits for particle detection
high-sensitivity optical particle detection

24. SPARC Collaboration at FAIR
(Stored Particles Atomic Research Collaboration)
PHELIX
FACILITIES
SIS100
HESR
APPA-Cave
ESR
CRYRING HITRAP

25. Thank you for your attention !
Acknowledgements
Helmholtz-Institut Jena
Friedrich-Schiller-Universität
Jena
VH-NG-037
Thank you for your attention !