The MR-TOF-MS isobar separator for the TITAN facility at TRIUMF

Christian Jesch, Timo Dickel, Wolfgang R. Plaß, Devin Short, Samuel Ayet San Andres, Jens Dilling, Hans Geissel, Florian Greiner, Johannes Lang, Kyle G. Leach, Wayne Lippert, Christoph Scheidenberger, Mikhail I. Yavor

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

At TRIUMF’s Ion Trap for Atomic and Nuclear Science (TITAN) a multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) will extend TITAN’s capabilities and facilitate mass measurements and in-trap decay spectroscopy of exotic nuclei that so far have not been possible due to strong isobaric contamination. This MR-TOF-MS will also enable mass measurements of very short-lived nuclides (half-life > 1 ms) that are produced in very low quantities (a few detected ions overall). In order to allow the installation of an MR-TOF-MS in the restricted space on the platform, on which the TITAN facility is located, novel mass spectrometric methods have been developed. Transport, cooling and distribution of the ions inside the device is done using a buffer gas-filled RFQ-based ion beam switchyard. Mass selection is achieved using a dynamic retrapping technique after time-of-flight analysis in an electrostatic isochronous reflector system. Only due to the combination of these novel methods the realization of an MR-TOF-MS based isobar separator at TITAN has become possible. The device has been built, commissioned off-line and is currently under installation at TITAN.

Original languageEnglish
Pages (from-to)97-106
Number of pages10
JournalHyperfine Interactions
Volume235
Issue number1-3
DOIs
StatePublished - Nov 1 2015
Externally publishedYes

Keywords

  • Exotic nuclides
  • Isobar separation
  • ISOL
  • Low-energy RIB
  • Mass measurements
  • MR-TOF-MS

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