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Stored and Cooled Ions Division
Max Planck SocietyMax Planck Institute for Nuclear PhysicsUniversity of Heidelberg Stored and Cooled Ions Division
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Max Planck Institute for Nuclear Physics
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Improved understanding of β-decay of 52Ni by high-precision isochronous mass spectrometry
The masses of 52g,52mCo were measured by X. Xu et al. with an unprecedented precision for short-lived nuclei of ~10 keV by isochronous mass spectrometry at the Cooler-Storage Ring at the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR external Link), China. ... >


Klaus Blaum received the Gothenburg Lise Meitner Award 2016
Today, our division director Prof. Klaus Blaum received the Gothenburg Lise Meitner Prize 2016 "for the development of innovative techniques for high-precision measurements of stored radioactive ions". ... >


Thu., Dec 15, 2016, 11:15, Central Seminar Room ... >
Thu., Jan 12, 2017, 11:15, Otto Hahn lecture hall ... >


Advanced seminar "Stored and Cooled Ions"
Tues., 13. Dec 2016, 15:00, Seminar room Blaum ... >
Stored Charged Particles
Wed., 14. Dec 2016, 11:15, INF 227 / SR 1.403 ... >


Welcome to the homepage of the Stored and Cooled Ions Division
Director: Prof. Dr. Klaus Blaum

  • A Penning trap for precision mass measurements
  • Electrodes of a Penning trap
  • An ion with only one electron stored in a cylindrical Penning trap
  • 7 T superconducting magnet for PENTATRAP
  • A liquid-nitrogen-cooled GaAs photocathode producing electron beams with internal temperatures down to 10 K
  • View onto the CSR just before its commissioning at cryogenic temperatures in April 2015
  • Copper strips distribute the cold to the experimental vacuum chambers of the CSR
  • CAD drawing of the laser photodetachment line for injection of neutral atomic or molecular beams into the CSR
  • Artist's view of the reaction between protonated water and electrons in the CSR
  • Profile of the first beam of argon ions in the not yet cooled CSR on March 17, 2014
  • The cryogenic ion trap used as a prototype for the CSR

The experimental working group of the division is concerned with precision experiments on stored and cooled ions as well as with the investigation of fundamental processes of molecular ions. For this purpose short-lived radionuclides, highly-charged ions or simple molecular ions are trapped in Penning traps and storage rings under conditions as they also occur in space. Another main research field of the division is the development of novel storage, cooling and detection techniques for future experiments.