Speaker
Description
We present the development status of a Cherenkov telescope for the detection of earth-skimming ultrahigh energy (UHE) tau neutrinos. While the telescope is developed for a long-duration balloon mission and serves as a precursor for the space-borne PEOMMA mission, the SiPM camera and readout electronics also meet the requirements for a ground-based air-shower UHE neutrino telescope. The design of the camera is driven by the unique characteristics of air showers initiated by UHE neutrinos in the lower atmosphere. I discuss the requirements, which derive from the air-shower physics and put them into context with the results obtained from our evaluation of blue and red sensitive SiPMs and the evaluation of the signal chain we have developed for the camera.