XXth International Conference on Neutrino Physics and Astrophysics
B.Müller & T.Thümmler
Particle Storage in MAC-E-Filters
Spectrometer of the Magnetic Adiabatic Collimation type are used to
examine the endpoint region of the Tritium beta decay spectrum. Due to
the low count rate of the signal a low background count rate is
crucial for the sensitivity of the neutrino mass especially for the
planned KArlsruhe TRItium Neutrino Experiment (KATRIN). The magnetic
and electric field configuration of the used MAC-E-Filter leads to
trapping conditions for charged particles which are suspected to be
the main reason for background events. Our simulations show that
trapping conditions can be destroyed by use of an electric dipol field
which is perpendicular to the magnetic field lines. First
experimental studies are under way at the Mainz Neutrino Mass
Experiment. This work is sponsored by BMBF: FKZ06Mz866I/5.