In the late 1970’s Ypsilantis and Seguinot’l proposed an extension of the classic binary ‘yes/no” Cerenkov counter to a new kind of particle identification system, with large dynamic range, robust performance and the potential to perform in the “heavy traffic” of the multi-particle jet environment. These new detectors were called Ring Imaging Cerenkov (RICH) counters21 or Cerenkov Ring Imaging ...