Beam test calibration of the balloon-borne imaging calorimeter for the   CREAM experiment
  CREAM (Cosmic Ray Energetics And Mass) is a multi-flight balloon mission designed to collect direct data on the elemental composition and individual energy spectra of cosmic rays. Two instrument suites have been built to be flown alternately on a yearly base. The tungsten/Sci-Fi imaging calorimeter for the second flight, scheduled for December 2005, was calibrated with electron and proton beams at CERN. A calibration procedure based on the study of the longitudinal shower profile is described and preliminary results of the beam test are presented. 
P.S. Marrocchesi, H.S. Ahn, M.G. Bagliesi, A. Basti, G. Bigongiari, A.   Castellina, M.A. Ciocci, A. Di Virgilio, T. Lomtatz...