Design of a large area fast RICH detector with CsI photocathode for particle identification at ALICE-LHC
| Autor: | V. Valentino, A. Grimaldi, A. Ljubicic, R. Potenza, F. Posa, E. Nappi, T. Tustonic, F. Piuc, D. Williams, T. Scognetti, P. Sartori, G. Paic, A. Di Mauro, A. Tricomi, Luigi Maria Galantucci |
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| Rok vydání: | 1995 |
| Předmět: |
Physics
Nuclear and High Energy Physics Large Hadron Collider Physics::Instrumentation and Detectors Cherenkov detector Detector Atomic and Molecular Physics and Optics Particle detector Particle identification Ring-imaging Cherenkov detector law.invention Nuclear physics law High Energy Physics::Experiment Collider Cherenkov radiation |
| Zdroj: | Nuclear Physics B - Proceedings Supplements. 44:261-267 |
| ISSN: | 0920-5632 |
| Popis: | ALICE, A Large Ion Collider Experiment, at the LHC collider operated with heavy-ion beams, envisages a Ring Imaging Cherenkov detector (RICH) system to identify particles in the momentum range: .7 GeV/c ÷ 2.5 GeV/c, as an alternative to a time of flight (TOF). In 1992 an extensive R&D programm was started to design and optimize a fast RICH detector based on proximity focusing of the Cherenkov radiation on a wire chamber with a Cesium Iodide solid photocathode. The implementation of an analog pad read-out scheme provides two dimensional information and efficient discrimination between ionizing particle and Cherenkov photoelectron impact points. After a discussion on the requirements, a description of the first large area prototype follows. Results of a beam test and detector performances are finally reported together with future developments and engineering issues. |
| Databáze: | OpenAIRE |
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