München 2009 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 75: Experimentelle Methoden 1

T 75.5: Vortrag

Mittwoch, 11. März 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.