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Die Datennahmekette des Double Chooz Experiments und ihre Komponenten - Eigenschaften der Photomultiplier und der Frontend-Elektronik

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Haser,  Julia Anna
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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2010-030.pdf
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Citation

Haser, J. A. (2010). Die Datennahmekette des Double Chooz Experiments und ihre Komponenten - Eigenschaften der Photomultiplier und der Frontend-Elektronik. Diploma Thesis, Ruprecht-Karls-Universität Heidelberg, Heidelberg.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-70D7-A
Abstract
The Double Chooz experiment is a reactor antineutrino experiment searching for a non-vanishing value of the neutrino mixing angle θ13; it will commence operation in fall 2010. The scintillation light of the neutrino events is detected by a total of 390 photomultiplier tubes, and the subsequent data acquisition chain consists of Splitter Boxes, Frontend Electronics, the Trigger Board and Flash ADCs. This Diploma thesis describes certain properties of the photomultiplier tubes and their measurements, such as linearity characteristics at high light levels and afterpulse behaviour with respect to charge and time. The e ect of afterpulsing on the Double Chooz experiment has been estimated by converting the measured results, together with the trigger conditions, into a simulation. In order to allow for tests of the Double Chooz data acquistion chain in advance, Frontend Electronics, Flash ADCs and a 30 litre acrylic cylinder filled with the Double Chooz target scintillator have been added to the existing photomultiplier test facility at MPIK Heidelberg. The measurements of the gain of the Frontend Boards are discussed in this thesis. Furthermore the preparation and installation of the acrylic vessel is described and the detection of scintillation light of rst events produced by muons is presented.