Effect of a sweeping conductive wire on electrons stored in the Penning trap between the KATRIN spectrometers

Abstract

The KATRIN experiment is going to search for the mass of the electron antineutrino down to 0.2 eV/c^2. In order to reach this sensitivity the background rate has to be understood and minimised to 0.01 counts per second. One of the background sources is the unavoidable Penning trap for electrons due to the combination of the electric and magnetic fields between the pre- and the main spectrometer at KATRIN. In this article we will show that by sweeping a conducting wire periodically through such a particle trap stored particles can be removed, an ongoing discharge in the trap can be stopped, and the count rate measured with a detector looking at the trap is reduced.

Final version published in EPJ A, 14 pages, 19 figures (21 files)

References in corpus (4)

• Massive neutrinos and cosmology
• Neutrino mass limit from tritium beta decay
• The WITCH experiment: Acquiring the first recoil ion spectrum
• A UV LED-based fast-pulsed photoelectron source for time-of-flight studies

Cited by in corpus (10)

• An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
• Current Direct Neutrino Mass Experiments
• The Design, Construction, and Commissioning of the KATRIN Experiment
• Improved determination of the $\beta$-${\overline{\nu }}_e$ angular correlation coefficient $a$ in free neutron decay with the $a$SPECT spectrometer
• New precision measurements of free neutron beta decay with cold neutrons
• The KATRIN Pre-Spectrometer at reduced Filter Energy
• The KATRIN Experiment
• Neutrino mass sensitivity by MAC-E-Filter based time-of-flight spectroscopy with the example of KATRIN
• Neutrino Masses
• Suppression of Penning discharges between the KATRIN spectrometers