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T: Fachverband Teilchenphysik
T 92: Neutrinomasse IV
T 92.1: Gruppenbericht
Donnerstag, 3. März 2016, 16:45–17:05, VMP5 SR 0079
Status of the KATRIN experiment — •Florian Fraenkle for the KATRIN collaboration — Karlsruhe Institute of Technology (KIT), Institut für Kernphysik (IKP)
The KArlsruhe TRItium Neutrino (KATRIN) experiment is a large-scale experiment for the model independent determination of the mass of electron anti-neutrinos with a sensitivity of 200 meV/c2 (90% C.L.). It investigates the kinematics of electrons from tritium β-decay close to the endpoint of the energy spectrum with a high-resolution electrostatic spectrometer (Δ E = 0.93 at 18.6 keV).
The KATRIN measurement setup consists of a high luminosity windowless gaseous tritium source (WGTS), a magnetic electron transport system with differential and cryogenic pumping for tritium retention, and an electro-static spectrometer section (pre-spectrometer and main spectrometer) for energy analysis, followed by a segmented detector system for counting transmitted β-electrons.
In order to investigate the backgrounds and transmission characteristics of the main spectrometer, a dedicated series of commissioning measurements was performed in 2015. The talk will present the current status of the experiment and give an overview on the results of the recent commissioning measurements.
This work has been supported by the German BMBF (05A14VK2).