München 2006 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 51: Kern- und Teilchen-Astrophysik

HK 51.5: Vortrag

Donnerstag, 23. März 2006, 18:00–18:15, E

Electromagnetic design calculations for the KATRIN experiment — •Ferenc Glück — Universität Karlsruhe (TH), Institut für Experimentelle Kernphysik, 76131 Karlsruhe

The purpose of the KATRIN experiment is to determine the absolute neutrino mass with 0.2 eV sensitivity, by measuring the integral electron energy spectrum near the endpoint of tritium beta decay. Electric retardation with magnetic adiabatic collimation is used for the spectrum measurement, thus one can obtain optimal conditions for statistics, energy resolution and background (for detailed description see: KATRIN Design Report 2004, http://www-ik.fzk.de/~katrin.index.html). We summarize in our talk the methods and results of various electromagnetic calculations needed for the optimal design of the experiment: electric field calculations (with wire electrodes); magnetic field calculations of superconducting and air coils, and of magnetic materials (f.e. steel in the building); trajectory calculations of electrons in static electromagnetic field, with high accuracy and small computer time.