Köln 2004 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 48: Nuclear and Particle Astrophysics IV

HK 48.3: Talk

Thursday, March 11, 2004, 17:00–17:15, F

Status of the Pre-Spectrometer of the KATRIN Neutrino Mass Experiment — •Joachim Wolf — IEKP, Universität Karlsruhe

The KArlsruhe TRItium Neutrino experiment KATRIN is an international next-generation experiment, which will improve the current neutrino mass sensitivity in tritium decay by one order of magnitude. KATRIN will be based on a high luminosity windowless molecular tritium source and a system of two retarding electro-static spectrometers, and allows to measure the spectral shape close to the beta-endpoint with an energy resolution of 1 eV. Recent improvements on the KATRIN design result in an estimated neutrino mass sensitivity of 0.2 eV. This talk reports on the present status of UHV measurements with the KATRIN pre-spectrometer vessel in Karlsruhe, which acts as a prototype for the larger main spectrometer vessel. Later this year the novel electro-magnetic design of the pre-spectrometer will be tested thoroughly. (Supported in part by the German BMBF No. 05CK1VK1/7 and 05CK1UM1/5).