SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 38: Neutrinos, Dark Matter V
T 38.6: Vortrag
Dienstag, 21. März 2023, 18:15–18:30, HSZ/0002
Characterisation measurements of LAPPDs for ν-detectors — •Benedict Kaiser, Lukas Bieger, Marc Breisch, Jessica Eck, Tobias Heinz, Tobias Lachenmaier, and Tobias Sterr — Universität Tübingen, Physikalisches Institut, Auf der Morgenstelle 14, 72076 Tübingen
Designed for use in future neutrino experiments, Large Area Picosecond Photodetectors (LAPPDs) are novel Microchannel Plate (MCP) based photodetectors. With a uniform gain of 106 to 107 over a large active area of more than 370 cm, an LAPPD is capable of single photon detection. It features a position resolution of better than 3 mm and an unprecedented time resolution of better than 70 ps. This performance is achieved by using a compact, evacuated glass case containing a multi-alkali photocathode, a chevron pair of MCPs for electron multiplication, and 28 individual anode strips for signal detection. Currently, we are analysing the performance of an LAPPD using a self-developed test setup. This talk will outline the working principle and characteristics of an LAPPD and the first measurement results will be discussed.