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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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Tel.: +49 6221 516-851
Fax: +49 6221 516-852
Postal Address
Max Planck Institute for Nuclear Physics
P.O. Box 10 39 80
69029 Heidelberg
Visitor Address
Max Planck Institute for Nuclear Physics
Saupfercheckweg 1
Building: Gentner lab,
room 134
69117 Heidelberg



Progress in p-process studies by application of novel storage ring method
In order to investigate the origin of the elements in the universe, nuclear reaction processes that are involved in stellar evolution and explosions are studied. ... >
Novel direct high-precision test of CPT invariance
The fundamental Charge, Parity, and Time Reversal (CPT) symmetry of the Standard Model of particle physics implies exact equality between the properties of a particle and its antimatter equivalent. ... >
Solved Q value puzzle paves way to the neutrino mass
Hundred trillion neutrinos are traversing every human per second, but their mass is still unknown. So far, only upper limits of the neutrino mass could be determined ... >


XXXV Heidelberg Physics Graduate Days
October 5-9, 2015
Heidelberg University, Germany ... >
Thu., Oct 22, 2015, 11:15, Central Seminar Room ... >


Stored Charged Particles
Wed., 14. Oct 2015, 11:00, INF 227 / SR 1.403 ... >
Online Registration external Link
Advanced seminar "Stored and Cooled Ions"
fortnightly, on Wednesdays 15:00, Seminar Room Blaum ... >


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

  • A Penning trap for precision mass measurements
  • 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 in November 2013
  • 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.