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New Journal of Physics 7 (2005) 44
Mass spectrometry of atomic ions produced by in-trap decay of short-lived nuclides
A. Herlert, D. Beck, K. Blaum, F. Carrel, P. Delahaye, S. George, C. Guénaut1, F. Herfurth, A. Kellerbauer, H.-J. Kluge, D. Lunney1, M. Mukherjee, L. Schweikhard, C. Yazidjian

The triple-trap mass spectrometer ISOLTRAP at ISOLDE/CERN has demonstrated the feasibility of mass spectrometry of in-trap-decay product ions. This novel technique gives access to radionuclides, which are not produced directly at ISOL-type radioactive ion beam facilities. As a proof of principle, the in-trap decay of $^{37}K^+$ has been investigated in a Penning trap filled with helium buffer gas. The half-life of the mother nuclide was confirmed and the recoiling $^{37}Ar^+$ daughter ion was contained within the trap. The ions of either the mother or the daughter nuclide were transferred to a precision Penning trap, where their mass was determined.
1 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Physique/Physique Nucléaire Expérimentale
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