Mass tagging: Verification and calibration of particle identification by high-resolution mass measurements

  • Christine Hornung*
  • , Timo Dickel
  • , Daler Amanbayev
  • , Samuel Ayet San Andrés
  • , Dimiter L. Balabanski
  • , Sönke Beck
  • , Julian Bergmann
  • , Paul Constantin
  • , Jens Ebert
  • , Hans Geissel
  • , Florian Greiner
  • , Lizzy Gröf
  • , Emma Haettner
  • , Muhsin N. Harakeh
  • , Jan Paul Hucka
  • , Nasser Kalantar-Nayestanaki
  • , Daria A. Kostyleva
  • , Gabriella Kripko-Koncz
  • , Ivan Miskun
  • , Ali Mollaebrahimi
  • Ivan Mukha, Gottfried Münzenberg, Stephane Pietri, Wolfgang R. Plaß, Sivaji Purushotaman, Moritz Pascal Reiter, Ann Kathrin Rink, Heidi Roesch, Christoph Scheidenberger, Anamaria Spătaru, Yoshiki K. Tanaka, Helmut Weick, Jianwei Zhao
*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

5 Citations (Scopus)
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Abstract

The access to exotic nuclei at radioactive ion beam facilities is crucial for the state of the art research across several fields of physics such as in nuclear structure, the understanding of fundamental interactions and nuclear astrophysics. The particle identification is of high importance, besides the challenging production of these rare and short-lived nuclei. At in-flight facilities, the particle identification is based on measuring the time-of-flight, energy-deposition and magnetic rigidity. These quantities are calibrated to convert them into A/Q and Z of the ions. To ensure a correct calibration, the unambiguous identification, also called tagging, of one species is necessary. Here, we present a novel tagging method by high-resolution mass measurements using an MR-TOF-MS after thermalization of the ions in a cryogenic stopping cell. The method was successfully established and tested at the fragment separator FRS at GSI with the FRS Ion Catcher in experiments using different FRS operation modes.

Original languageEnglish
Pages (from-to)257-259
Number of pages3
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume541
DOIs
Publication statusPublished - Aug-2023

Keywords

  • Exotic nuclei
  • Mass tagging
  • Multiple-reflection time-of-flight mass spectrometer

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