Radon induced background processes in the KATRIN pre-spectrometer

F.M. Fränkle (1, 2, 3) , L. Bornschein (1) , G. Drexlin (1) , F. Glück (1) , S. Görhardt (1) , W. Käfer (1) , S. Mertens (1) , N. Wandkowsky (1) , J. Wolf (1)

1 KIT - Karlsruhe Institute of Technology
2 Department of Physics
3 Triangle Universities Nuclear Laboratory

► This article describes background measurements at the KATRIN pre-spectrometer. ►Electrons released in Radon decay are magnetically trapped in the spectrometer. ►Trapped electrons can produce thousands of background events at the detector.

Mots clés: Radon; Backgrounds; MAC-E filter; KATRIN

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Cosmologie et astrophysique extra-galactique [astro-ph.CO]

F.M. Fränkle, L. Bornschein, G. Drexlin, F. Glück, S. Görhardt, et al.. Radon induced background processes in the KATRIN pre-spectrometer. Astroparticle Physics, 2011, 35 (3), pp.128. ⟨10.1016/j.astropartphys.2011.06.009⟩. ⟨hal-00789875⟩