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arXiv · 1110.2919

PENTATRAP: A novel cryogenic multi-Penning trap experiment for high-precision mass measurements on highly charged ions

J. Repp·Ch. Böhm·J. R. Crespo López-Urrutia·A. Dörr·S. Eliseev·S. George·M. Goncharov·Yu. N. Novikov·C. Roux·S. Sturm·S. Ulmer·K. Blaum
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Abstract

The novel five-Penning trap mass spectrometer PENTATRAP is developed at the Max-Planck-Institut f\"ur Kernphysik (MPIK), Heidelberg. Ions of interest are long-lived highly charged nuclides up to bare uranium. PENTATRAP aims for an accuracy of a few parts in 10^12 for mass ratios of mass doublets. A physics program for PENTATRAP includes Q-values measurements of \beta-transitions relevant for neutrino physics, stringent tests of quantum electrodynamics in the regime of extreme electric fields, and a test of special relativity. Main features of PENTATRAP are an access to a source of highly charged ions, a multi-trap configuration, simultaneous measurements of frequencies, a continuous precise monitoring of magnetic field fluctuations, a fast exchange between different ions, and a highly sensitive cryogenic non-destructive detection system. This paper gives a motivation for the new mass spectrometer PENTATRAP, presents its experimental setup, and describes the present status.

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J. Repp, Ch. Böhm, J. R. Crespo López-Urrutia, A. Dörr, S. Eliseev, S. George, M. Goncharov, Yu. N. Novikov, C. Roux, S. Sturm, S. Ulmer, K. Blaum. 2011-10-13. PENTATRAP: A novel cryogenic multi-Penning trap experiment for high-precision mass measurements on highly charged ions. https://doi.org/10.1007/s00340-011-4823-6

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