Atomic & Molecular Physics Group
Ernst-Moritz-Arndt-Universität Greifswald, Math.-Nat. Fakultät, Institut für Physik

Felix-Hausdorff-Str. 6, D-17487 Greifswald, Germany
phone: +49-3834-86-4700, fax: 86-4701


Ion Trapping and Mass Spectrometry

for Nuclear, Atomic and Molecular Physics

Prof. Dr. Lutz Schweikhard



2014-02 Robert WolfMarch 2014:

Robert Wolf receives two prizes

for his dissertation on

multi-reflection time-of-flight

mass spectrometry and

application in nuclear physics

(see press release)


2013-06-10_Abb-Fig 1 Ion_ping_pong_504xnnJune 2013: ion ping pong   

Masses of exotic calcium isotopes pin down nuclear forces
F. Wienholtz et al., Nature 498, 346 (2013), featured also in Nature News&Views

press releases, etc.: CERN updates or CERN, idw,,,

CERN Courier, Physics Today (physics update), in German: idw/German, Physik in unserer Zeit

Newspaper articles (in German) in F.A.Z. and NNZ  


Recent publications


Upgrades at ClusterTrap and Latest Results

F. Martinez et al., Int. J. Mass Spectrom., accepted


Ion-Bunch Stacking in a Penning Trap after Purification in an Electrostatic Mirror Trap

M. Rosenbusch et al., Appl. Phys. B 114, 147-155 (2014)


A phase-imaging technique for cyclotron-frequency measurements

S. Eliseev et al., Appl. Phys. B 114, 107-128 (2014)



A few further highlights:


Phase-imaging ion-cyclotron-resonance measurements for short-lived nuclides

S. Eliseev et al., Phys. Rev. Lett. 110, 082501 (2013), press release (in German): idw


Plumbing neutron stars to new depths with the binding energy of the exotic nuclide 82Zn

R.N. Wolf et al., Phys. Rev. Lett. 110, 041101 (2013)

cover of PRL issue, synopsis, report in Science News,, CERN Courier article, Cover of CERN Courier, CERN bulletin, CERN PH Newsletter,

      press releases: idw in English, idw in German


Direct mapping of nuclear shell effects in the heaviest elements

E. Minaya Ramirez et al., Science 337, 1207 (2012) press release/echo (in German): university, idw, FAZ, Physik in unserer Zeit, (in English): idw


Two-electron emission after photoexcitation of metal-cluster dianions
A. Herlert, L. Schweikhard, New J. Phys. 14, 055015 (2012)


Lutz Schweikhard elected Fellow of the American Physical Society

for his developments of ion-trapping techniques and their application …  press release/echo (in German): idw


Direct mass measurements above uranium bridge the gap to the island of stability

M. Block et al., Nature 463, 785 (2010)  press release/echo (in German): idw, FAZ


Radon-229 discovery

D. Neidherr et al., Phys. Rev. Lett. 102, 112501 (2009) media release/echo (in German): idw, FAZ, Physik in unserer Zeit

and more on

·         Cluster Physics:  

Appearance size of poly-anionic aluminum clusters, Alnz, z = 2 5, F. Martinez et al., Eur. J. Phys. D 67, 39 (2013)

·         Ion-Storage Techniques:  

The Stability Diagram of the Digital Ion Trap, S. Bandelow et al., Int. J. Mass Spectrom. 336, 47 (2013)

The 3-state digital ion trap, S. Bandelow, et al., Int. J. Mass Spectrom., 353, 49-53 (2013)

Lifting of the trapping-potential during ion storage for multi-anion production in a Penning trap, F. Martinez et al., Int. J. Mass Spectrom. 313, 30 (2012)

Static-mirror ion capture and time focusing for electrostatic ion-beam traps and multi-reflection time-of-flight mass analyzers by use of an in-trap potential lift, R.N. Wolf et al., Int. J. Mass Spectrom. 313, 8 (2012)

ISOLTRAP’s Multi-Reflection Time-of-Flight Mass Separator/Spectrometer, R.N. Wolf, F. Wienholtz et al., Int. J. Mass Spectrom., Int. J. Mass Spectrom., 349-350, 123 (2013)

·         Beta Decay:  

Q-Value and Half-Lives for the Double-Beta-Decay Nuclide 110Pd, Phys. Rev. Lett. 108, 062502 (2012), press release (in German): idw

Resonant enhancement of neutrinoless double electron capture in 152Gd, Phys. Rev. Lett. 106, 052504 (2011), press release (in German): idw