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Figure 1: Schematic view of the detector. The outer calorimeter consists of 240 pure CsI crystals.

Figure 2: Design of the mechanical support of the detector. All detector components of Figure 1 are contained inside the sphere.

Figure 3: Light output per unit path lenth of a CsI crystal plotted along the main body axis. Different front face treatments drastically affect the uniformity.

Figure 4: Energy spectra of a 12-module CsI crystal cluster irradiated with a 70 MeV e beam, and Monte Carlo simulation.

Pi-Beta group
Mon Dec 4 11:53:12 MET 1995