The Track Imaging Cerenkov Experiment
  We describe a dedicated cosmic-ray telescope that explores a new method for detecting Cerenkov radiation from high-energy primary cosmic rays and the large particle air shower they induce upon entering the atmosphere. Using a camera comprising 16 multi-anode photomultiplier tubes for a total of 256 pixels, the Track Imaging Cerenkov Experiment (TrICE) resolves substructures in particle air showers with 0.086 degree resolution. Cerenkov radiation is imaged using a novel two-part optical system in which a Fresnel lens provides a wide-field optical trigger and a mirror system collects delayed light with four times the magnification. TrICE records well-resolved cosmic-ray air showers at rates ranging between 0.01-0.1 Hz. 
S. A. Wissel, K. Byrum, J. D. Cunningham, G. Drake, E. Hays, D. Horan,   D. Kieda, E. Kovacs, S. Magill, L. Nodulman, S. P. ...
astro-ph.IM astro-ph.HE