Comparison of High-Energy Hadronic Shower Profiles Measured with Scintillation and Cerenkov Light

Results are presented of measurements of high-energy hadronic shower profiles measured in a copper-based fiber calorimeter. The calorimeter was equipped with a mixture of scintillating fibers and undoped (quartz or plastic) fibers. The latter measured Èerenkov light generated in the shower development process, whereas the scintillating fibers measured the energy deposit profile (dE/dx). Here, we present longitudinal shower profiles in the energy range 40-300 GeV for pions.