Dipolar and quadrupolar detection using an FT-ICR MS setup at the MPIK Heidelberg |
| |
Authors: | Michael Heck Klaus Blaum R Burcu Cakirli Daniel Rodr??guez Lutz Schweikhard Stefan Stahl Marta Ubieto-D??az |
| |
Institution: | 1. Max-Planck-Insitute for Nuclear Physics, 69117, Heidelberg, Germany 2. Department of Physics, University of Istanbul, Istanbul, Turkey 3. Universidad de Granada, 18071, Granada, Spain 4. Institute of Physics, Ernst-Moritz-Arndt University Greifswald, 17487, Greifswald, Germany 5. Stahl-Electronics, Kellerweg 23, 67582, Mettenheim, Germany
|
| |
Abstract: | Dipolar and single-phase two-electrode quadrupolar detection schemes have been investigated at a Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) setup built for the KATRIN experiment at the Max-Planck-Institute for Nuclear Physics (MPIK) in Heidelberg. We present first experimental results of 7Li?+? signals from a cylindrical Penning trap configuration for both detection schemes. While the prominent signal of the conventional dipolar detection scheme marks the reduced cyclotron frequency, the main signal for the quadrupolar detection appears at the sum of the reduced cyclotron frequency and the magnetron frequency. For ideal trapping fields, this sum frequency equals the ion cyclotron frequency ?? c ?=?qB/(2??m). Sidebands due to the combined motions of the cyclotron mode and magnetron mode are observed by quadrupolar detection which allows the determination of the respective combinations of eigenfrequencies. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|