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Gießen 2007 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 49: Poster

HK 49.22: Poster

Donnerstag, 15. März 2007, 16:00–17:00, P

Development of a QA system for the wire electrode of the KATRIN main spectrometer — •Martina Reinhardt, Helmut Baumeister, Alexander Gebel, Volker Hannen, Raphael Jöhren, Hans-Werner Ortjohann, Matthias Prall, Kim Temming, and Christian Weinheimer for the KATRIN collaboration — Institut für Kernphysik, Westfälische Wilhelms-Universität Münster

The KArlsruhe TRItium Neutrino experiment will measure the mass of the νe with a sensitivity of 0.2 eV/c2 at 90% C.L. The main spectrometer of the experiment has to be equipped with a wire electrode to reduce background from electrons produced in the vessel material either by cosmic muons or by radioactive isotopes. It is also used to shape the electric potential. Computer simulations have shown that the modules of the wire electrode, that covers a surface area of ca. 650 m2, have to be manufactured with a precision of the order of 0.1 mm. For the quality assessment of the produced wire modules we have automated a 3D measurement table and equipped it with a machine vision system and a dedicated laser sensor system.
The emphasis of the poster lies on the setup and the principle of these QA components.
Supported by BMBF under contract number 05CK5MA/0 and the virtual institut VIDMAN of the HGF.

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