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T: Fachverband Teilchenphysik

T 110: Niederenergie-Neutrinophysik/Suche nach Dunkler Materie 5

T 110.4: Talk

Wednesday, February 29, 2012, 17:35–17:50, ZHG 102

Development of an Optical Module for LENA — •Marc Tippmann — for the LENA working group - Technische Universität München, Physik-Department E15, James-Franck-Straße, D-85748 Garching

LENA (Low Energy Neutrino Astronomy) is a next-generation liquid-scintillator neutrino detector with 50kt target mass. The broad spectrum of physics goals ranging from the sub-MeV to the GeV regime sets high demands on the photosensors.

In order to select the optimum sensor, first simulations regarding the influence of sensor properties on detector behavior have been performed. In addition, a photosensor testing facility has been constructed. Potential sensor types for LENA are discussed.

As PMTs are currently the most promising option, the status of the development of an optical module for PMTs is presented. This consists of PMT, voltage divider, Mu-metal, a pressure withstanding encapsulation and a light concentrator.

This work has been supported by the Maier-Leibnitz-Laboratorium, the TR 27 "Neutrinos and Beyond" and the cluster of excellence "Origin and Structure of the Universe".