An RF quadrupole–time-of-flight system for isobar-separation and multiplexed low-energy Rare-Isotope Beam experiments
II. Physikalisches Institut, Justus-Liebig-Universität Giessen, 35392 Giessen, Germany
2 Gesellschaft für Schwerionenforschung, 64291 Darmstadt, Germany
Published online: 8 December 2007
A novel system consisting of RF quadrupole and time-of-flight sections is proposed, in which ions can be cooled, bunched, mass separated with a resolution sufficient to differentiate between isobars, and guided to different experimental setups, e.g. for precision mass measurements or mass-resolved decay spectroscopy. It enables multiplexed operation of several connected experiments and interleaved measurements using different nuclides in one connected experiment. Such a system could be employed advantageously at in-flight facilities, at which experiments with stopped exotic nuclei are made possible using gas-filled stopping cells, such as SHIPTRAP at GSI, or potentially at ISOL facilities. First results for individual stages of the system are presented.
PACS: 07.75.+h – Mass spectrometers / 41.85.Ja – Beam Transport / 82.80.Rt – Time of flight mass spectrometry
© EDP Sciences, Springer-Verlag, 2007