Michael Wurm - New photo sensors for the hybrid Cherenkov-scintillation detector Theia

The next generation of neutrino detectors will need improved event reconstruction capabilities to further explore neutrino oscillations and astrophysical neutrino sources. Theia is a novel detector concept that aims at a hybrid read-out of Cherenkov and scintillation signals from neutrino interactions. Besides a very transparent scintillator medium, this new technique will crucially depend on the availability of fast and/or wavelength-resolving photo sensors. This talk will explore LAPPDs, Dichroicons and SiALGs as new photo sensors to discriminate scintons from chertons. It will highlight as well the added value that a hybrid optical detector module would bring to the long-baseline neutrino program of the DUNE experiment.