Improvement of the applicability, efficiency, and precision of the penning trap mass spectrometer ISOLTRAP

A. Kellerbauer, G. Bollen, J. Dilling, S. Henry, F. Herfurth, H. J. Kluge, E. Lamour, D. Lunney, R. B. Moore, C. Scheidenberger, S. Schwarz, G. Sikler, J. Szerypo

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

With the Penning trap mass spectrometer ISOLTRAP, close to 200 nuclides have already been investigated and their masses determined with a typical relative precision of δm/m = 10-7. Recently, ISOLTRAP's beam preparation system was replaced by an RFQ ion beam cooler and buncher. The principle and the characteristics of this new beam preparation system will be presented. It is planned to use ions of various carbon clusters C+?? (n > 1) as reference ions for mass measurements. Apart from negligible molecular binding energies, these clusters have masses that are exact multiples of the unified atomic mass unit. This will allow ISOLTRAP to carry out absolute mass measurements as well as to investigate possible mass-dependent systematic errors. The results of tests of the production, transport, and trapping of such carbon clusters will be presented.

Original languageEnglish
Pages (from-to)511-515
Number of pages5
JournalHyperfine Interactions
Volume132
Issue number1-4
DOIs
StatePublished - 2001
Externally publishedYes

Keywords

  • Atomic masses
  • Ion cooling, on-line mass spectrometry
  • Ion guide
  • Ion trap
  • Radioactive ion beams

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