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Cryogenic linear Paul trap for cold highly charged ion experiments

  • Maria Schwarz*
  • , Osca O. Versolato
  • , A. Windberger
  • , F. R. Brunner
  • , T. Ballance
  • , S. N. Eberle
  • , J. Ullrich
  • , Piet Oliver Schmidt
  • , Anders K. Hansen
  • , A. D. Gingell
  • , Michael Drewsen
  • , José R.Crespo López-Urrutia
  • *Corresponding author for this work

Research output: Contribution to journalReview articleResearchpeer review

Abstract

Storage and cooling of highly charged ions require ultra-high vacuum levels obtainable by means of cryogenic methods. We have developed a linear Paul trap operating at 4 K capable of very long ion storage times of about 30 h. A conservative upper bound of the H 2 partial pressure of about 10 -15 mbar (at 4 K) is obtained from this. External ion injection is possible and optimized optical access for lasers is provided, while exposure to black body radiation is minimized. First results of its operation with atomic and molecular ions are presented. An all-solid state laser system at 313 nm has been set up to provide cold Be ions for sympathetic cooling of highly charged ions.

Original languageEnglish
Article number083115
JournalReview of Scientific Instruments
Volume83
Issue number8
DOIs
Publication statusPublished - 27 Aug 2012

ASJC Scopus subject areas

  • Instrumentation

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