Author :
Arrington, K. ; Kefford, D. ; Kennedy, J. ; Pisani, R. ; Sanzeni, C. ; Segall, K. ; Wall, D. ; Winn, D.R. ; Carey, R. ; Dye, S. ; Miller, J. ; Sulak, L. ; Worstell, W. ; Efremenko, Y. ; Kamyshkov, Y. ; Savin, A. ; Shmakov, K. ; Tarkovsky, E.
Abstract :
Clear optical fibers were used as a Cerenkov sampling media in Pb (electromagnetic) and Cu (hadron) absorbers in spaghetti calorimeters, for high rate and high radiation dose experiments, such as the forward region of high energy colliders. The fiber axes were aligned close to the direction of the incident particles(1°-7°). The 7 λ deep hadron tower, contained 2.8% by volume 1.5 mm diameter core clear plastic fibers. The 27 radiation length deep electromagnetic towers had packing fractions of 6.8% and 7.2% of 1 mm diameter core quartz fibers as the active Cerenkov sampling medium. The energy resolution on electrons and pions, energy response, pulse shapes and angular studies are presented
Keywords :
Cherenkov counters; calorimeters; electron detection and measurement; meson detection and measurement; 1 mm; Cerenkov fiber sampling calorimeters; Cu absorbers; EM calorimeter; Pb absorbers; SiO2; angular measurements; electrons; energy resolution; energy response; hadron calorimeter; optical fibers; pions; pulse shapes; quartz fibers; spaghetti calorimeters; Electromagnetic radiation; Electrons; Energy resolution; Mesons; Optical fibers; Plastics; Poles and towers; Pulse shaping methods; Sampling methods; Shape;
