Performance of a compensating lead/plastic scintillator tile/fiber calorimeter

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2002-07, Vol.487 (3), p.291-307
• Main Authors: Uozumi, S, Asakawa, T, Done, J.P, Fujii, Y, Furukawa, K, Hara, K, Ishizaki, T, Kaga, S, Kajino, F, Kamon, T, Kanaya, N, Kanzaki, J, Kawagoe, K, Kim, S, Miyajima, A, Nakagawa, A, Nozaki, M, Oishi, R, Ota, T, Sendai, K, Sugimoto, Y, Suzuki, T, Takeda, H, Takeshita, T, Takeuchi, A, Toeda, T, Yamada, Y
• Format: Article
• Language: English
• Subjects: Calorimeter; Compensation; e/π; Hadron calorimeter; Tile/fiber
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/S0168-9002(01)00891-9

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 (46.7±0.6)%/ E ⊕(0.9±0.9)% for pions, where the energy E is given in GeV. The response ratio of electromagnetic showers to hadronic showers is measured to be 1.04±0.01 at low energies, and 0.99±0.01 at high energies.