An orientable time-of-flight detector for cosmic rays

Cosmic ray studies, in particular UHECR, can be in general supported by a directional, easily deployable, simple and robust detector. The design of this detector is based on the time of flight between two parallel tiles of scintillator, to distinguish particle passing through in opposite directions; by fine time resolution and pretty adjustable acceptance it is possible to select upward(left)/downward(right) cosmic rays. It has been developed for an array of detectors to measure upward τ from Earth-Skimming neutrino events with energy above 10 8 GeV . The properties and performances of the detector are discussed. Test results from a high noise environment are presented.