Very Large Area Scintillation Counters for Hadron Calorimetry

Very large area scintillation counters have been developed for use in a neutrino experiment at Fermilab. These counters are used to measure the energy and position of hadronic cascades. In order to do this economically, we have developed a technique utilizing "wave-shifter" bars for gathering scintillation light from each of these counters into a small number of photomultiplier tubes. A low cost acrylic plastic scintillator (5' × 5' × 1.5") and larger (10' × 10' × 1") acrylic tanks filled with liquid scintillator are being viewed with wavelength-shifting bars.