Improved beam diagnostics and optimization at ISAC via TITAN's MR-TOF-MS

M. P. Reiter*, F. Ames, C. Andreoiu, S. Ayet San Andrés, C. Babcock, B. R. Barquest, J. Bergmann, J. Bollig, T. Brunner, T. Dickel, J. Dilling, I. Dillmann, E. Dunling, A. Finlay, G. Gwinner, L. Graham, C. Hornung, B. Kootte, R. Klawitter, P. KunzY. Lan, D. Lascar, J. Lassen, E. Leistenschneider, R. Li, J. E. McKay, M. Mostamand, S. F. Paul, W. R. Plaß, C. Scheidenberger, B. E. Schultz, R. Steinbrügge, A. Teigelhoefer, R. Thompson, M. E. Wieser, C. Will, A. A. Kwiatkowski

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Determination of the constituents of the radioactive ion beam (RIB) is crucial for successful experiments at low-energy RIB facilities and as such decides the fate of many experiments. Here we present the role of TITAN's Multiple-Reflection Time-Of-Flight Mass Separator (MR-TOF-MS) and how it complements the present capabilities at ISAC-TRIUMF for yield determinations and beam delivery. This non-scanning, broadband, high-resolution mass spectrometer allows for real-time identification and quantification of all species, ranging from radionuclides with half-lives as low as a few ms to stable isotopes and molecules. In this manner it can be efficiently used to optimize RIB delivery through the ISAC mass separator for rate of the species of interest or its ratio to contamination. We present an example of this optimization approach, where the purity of secondary beams of neutron-rich titanium was improved by more than one order of magnitude based on the diagnostics capabilities of the new MR-TOF-MS and thus, allowed for high-precision mass measurements at TITAN.

Original languageEnglish (US)
Pages (from-to)431-436
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
StatePublished - Jan 15 2020


  • Beam purification and optimization
  • Isotopic separation on line
  • Low-energy RIB

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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