Hamburg 2016 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 92: Neutrinomasse IV
T 92.5: Vortrag
Donnerstag, 3. März 2016, 17:50–18:05, VMP5 SR 0079
Status of the KATRIN Focal-Plane Detector — •Agnes Seher for the KATRIN collaboration — Karlsruher Institute of Technology (KIT) — Institut für Kernphysik (IKP)
The KArlsruhe TRItium Neutrino (KATRIN) experiment aims to determine the mass of the electron anti-neutrino with a sensitivity of 200 meV/c2 by measuring the kinematics of tritium β-electrons close to the enpoint of the energy spectrum. The energy analysis of the experiment is performed with a high-resolution electrostatic spectrometer of MAC-E filter type which acts as an integranting high pass filter. Transmitted electrons are counted with a segmented silicon detector system located at the downstream end of the experiment. The detector system consists of two super-conducting solenoids (Bmax=6T), a post-acceleration electrode, a detector wafer with silicon pixel-diodes, readout electronics as well as a calibration and monitoring devices. This talk will give an overview of the detector system and its current status as well as key performance parameters.
This work has been supported by the U.S. Department of Energy, the Helmholtz Association, and the German BMBF (05A14VK2).