5–13 Oct 2022
Obertrubach-Bärnfels
Europe/Berlin timezone

Investigation of photomultiplier photocathodes with an ellipsometer

5 Oct 2022, 18:15
15m
Obertrubach-Bärnfels

Obertrubach-Bärnfels

Gasthof Drei Linden Bärnfels-Dorfstr. 38 91286 Obertrubach
Participant talk Main session Participants Presentations

Speaker

Ms Berit Schlüter (Institut für Kernphysik, WWU)

Description

Photomultiplier tubes (PMTs) are a central component of today’s neutrino telescopes such as IceCube and KM3NeT, and an accurate understanding and measurement of their properties is indispensable for further improvement of the detectors. In my talk, the focus is on the optical properties of the photocathode, which is only a few 10 nanometers thick and will be investigated using an ellipsometer. As part of my master’s thesis, I set up the ellipsometer and used it to characterize flat samples. Currently, the setup is being extended for the measurement of curved photocathodes as part of my PhD thesis. This talk presents the idea of the measurement as well as the current status of the work

Primary author

Ms Berit Schlüter (Institut für Kernphysik, WWU)

Presentation materials