München 2009 – scientific programme
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T: Fachverband Teilchenphysik
T 75: Experimentelle Methoden 1
T 75.5: Talk
Wednesday, March 11, 2009, 17:55–18:10, A022
Transmission properties of guides for ultra-cold neutrons — •Stefan Materne1, Manfred Daum2, Beatrice Franke1, Andreas Frei1, Erwin Gutsmiedl1, Joachim Hartmann1, Axel Müller1, Stephan Paul1, Rüdiger Picker1, Klaus Schreckenbach1, and Rainer Stoepler1 — 1TU München, Physik-Department — 2PSI, Villigen, Schweiz
Ultra-cold neutrons (UCN) provide an excellent tool for exploring physics beyond the standard model. Currently, at the Technische Universität München a new source for ultra-cold neutrons is planned, which will be installed at the Maier-Leibnitz Forschungsneutronenquelle in Garching, Germany. From the conversion cell in the reactor core, the neutrons have to be guided up to 40 m to the experiments. Therefore, the quality of the neutron guides is a crucial factor to guarantee a high UCN density for the experiments. The transmission properties of UCN guides coated with various surfaces in the replica technique have been tested at ILL, Grenoble, France. The experimental procedure and results will be presented.