Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 102: Neutrino Physics without Accelerators 7
T 102.3: Vortrag
Donnerstag, 24. März 2022, 16:45–17:00, T-H34
Characterisation measurement of LAPPDs for ν-detectors — •Benedict Kaiser, Lukas Bieger, David Blum, Marc Breisch, Srijan Delampady, Jessica Eck, Gina Grünauer, Tobias Heinz, Frieder Kohler, Tobias Lachenmaier, Axel Müller, Tobias Sterr, Alexander Tietzsch und Jan Züfle — Universität Tübingen, Physikalisches Institut, Auf der Morgenstelle 14, 72076 Tübingen
Large Area Picosecond Photodetectors (LAPPDs) are novel photodetectors suitable for use in upcoming neutrino detection experiments. LAPPDs incorporate a square multi-alkali photocathode, a chevron pair of microchannel plates (MCPs) for photoelectron multiplication and multiple anode strips for readout, all in a hermitically sealed package.
The design of the LAPPDs results in an unprecedented time resolution better than 70 ps and a spatial resolution of 2.5 mm and 0.8 mm in x- and y-direction respectively at uniform gains of 106 to 107 over a large active detector area of more than 370 cm2.
Currently, we are commissioning a setup to test LAPPDs for their performance and key characteristics. This talk will outline the working principle as well as characteristics of an LAPPD and measurement results of the first LAPPD received from the manufacturer will be discussed.