Heidelberg 2015 – wissenschaftliches Programm

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MS: Fachverband Massenspektrometrie

MS 2: Precision Mass Spectrometry 2

MS 2.1: Hauptvortrag

Montag, 23. März 2015, 14:30–15:00, PH/HS2

Precision Penning trap mass measurements of short-lived exotic isotopes — •Jens Dilling — TRIUMF & University of British Columbia — Max-Planck Institute for Nuclear Physics

Exotic isotopes offer unique research and science opportunities, for example related to the fundamental understanding of the strong force, or the generation of the chemical elements in the universe. However, since exotic or often-called rare isotopes have to be generated at accelerator facilities, and usually only in minuscule quantities, with half-lives as short as few milliseconds, the mass measurement methods have to be adjusted. For this, we have developed very sensitive and fast methods using ion trap techniques. Ion traps are employed to measure atomic masses, using one single ion in as short as a 1/100 of a second with 10 parts per billion precision, breaking a world-record for precision mass spectroscopy. We were able to do such experiments using a unique combination of traps, including a Paul trap, an electron beam ion trap (to generate highly charged ions), and a set of Penning traps. In this talk I will report on measurements, the novel techniques we have developed, in particular when using highly charged ions, and plans for the future.