Heidelberg 2015 – scientific programme
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MS: Fachverband Massenspektrometrie
MS 2: Precision Mass Spectrometry 2
MS 2.2: Talk
Monday, March 23, 2015, 15:00–15:15, PH/HS2
Status of the high-precision Penning-trap mass spectrometer Pentatrap — •Alexander Rischka1, Hendrik Bekker1, Klaus Blaum1, Christine Böhm1,2, José R. López-Urrutia1, Andreas Dörr1, Sergey Eliseev1, Mikhail Goncharov1, Yuri N. Novikov3, Rima Schüssler1,4, Sven Sturm1, and Stefan Ulmer5 — 1Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany — 2ExtreMe Matter Institute EMMI, Helmholtz Gemeinschaft, 64291 Darmstadt, Germany — 3Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia — 4Universität Heidelberg, Fakultät für Physik und Astronomie, 69120 Heidelberg, Germany — 5RIKEN, Ulmer Initiative Research Unit, Japan
The Penning-trap mass spectrometer PENTATRAP is currently in the commissioning phase at the Max-Planck-Institute for Nuclear Physics in Heidelberg. We are aiming at measurements of mass ratios of highly charged ions with a relative uncertainty of 10−11 and better, e.g. to probe, with the measurement of the Q-value of 163Ho/163Dy, the electron neutrino mass. In the first commissioning campaign we demonstrated the transport of the ions from the electron beam ion source to the trap. We succeeded as well in trapping a single 40Ar8+ ion where trapping times up to 30 min were achieved. To improve the trapping time even further and thus, to achieve a full characterization of the trap and start first precision measurements, a major revision of the cryogenic setup is presently prepared. This includes a new detection and trap alignment system.