Nuclear Instruments and Methods in Physics Research A 487 (2002) 291–307 Performance of a compensating lead/plastic scintillator tile/fiber calorimeter

We have measured performance of a lead/plastic scintillator sampling calorimeter in two separate beam tests at low (1–4 GeV) and high (10–200 GeV) energies. The calorimeter is composed of 8-mm-thick lead plates and 2-mm-thick plastic scintillator plates for hardware compensation, where responses to electromagnetic and hadronic showers of the same energy are identical. We find the linearity to be better than 1 % in the energy range between 2 and 150 GeV for both pions and electrons. The energy resolutions are obtained to be ð46:770:6Þ%= ffiffiffiffi E