XXth International Conference on Neutrino Physics and Astrophysics

Poster Abstract


Design of KATRIN Pre Spectrometer

With the compelling evidence for massive neutrinos from recent neutrino oscillation experiments, one of the most fundamental tasks of particle physics over the next years will be the determination of the absolute mass scale of neutrinos. The planned KArlsruhe TRItium Neutrino experiment KATRIN is the next-generation tritium beta-decay experiment with a sensitivity of 0.3 eV for the mass of the electron-neutrino. KATRIN will be based on a high luminosity tritium source and a system of two retarding electro-static spectrometers. It will allow to measure the spectral shape close to the endpoint of the tritium beta-decay spectrum with an energy resolution of 1 eV. The first spectrometer, the so-called pre-spectrometer, will prevent the main part of beta-electrons from proceeding to the main spectrometer, where they would contribute to the background rate through interactions with residual gas molecules. The pre-spectrometer will be built in 2002 at FZK (Karlsruhe) and will act as a test facility for investigations of XUHV techniques. It will also be used to optimize the electro-magnetic design of the KATRIN MAC-E-filter system. This project is supported in part by the German BMBF (No. 05CK1VK1/7 and 05CK1UM1/5).

Back to Poster Listing Print this frame