Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 9: Neutrinophysik IX
T 9.5: Vortrag
Montag, 19. März 2018, 17:00–17:15, Z6 - HS 0.002
Status Update of the PALM Setup — •Sabrina Franke1, Julia Sawatzki1, Lothar Oberauer1, and Andreas Ulrich2 for the JUNO collaboration — 1Technical University of Munich, Physics Department, E15, James-Franck-Str 1, 85748 Garching — 2Technical University of Munich, Physics Department, E12, James-Franck-Str 1, 85748 Garching
Status update of the Precision Attenuation Length Measurement Setup (PALM) in the framework of the JUNO collaboration. The Jiangmen Underground Neutrino Observatory is a 20 kt liquid scintillator neutrino detector. Its primary goal is the determination of the neutrino mass hierarchy. To achieve this, precision measurements of the reactor antineutrino survival probability will be done. Due to the detector's diameter of approx. 40 m, the attenuation length is a crucial parameter for the energy resolution an can not be measured with commercially available spectrometers in the needed order of magnitude (10 cm vs. meter range). Therefore, the PALM setup was developed, which make it possible to measure light paths through the medium up to approx. 2.9 m and to determine the attenuation length very precisely. In this talk, a status update on measurements with the PALM experiment will be given. This work is sponsored by the DFG - JUNO funding.