Beam Tests of First Prototype of a Cherenkov Counter for the ALICE T0 Detector

<HTML> <HEAD> <h2>Abstract</h2> </HEAD> <P> <BODY> <P> The first prototype of a Cherenkov counter consisting of a quartz radiator of rectangular shape 25x30x12 mm (30 mm along the particles' trajectories) and/or PMTs Hamamatsu R3432-01 and FEU-187...

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Detalles Bibliográficos
Autores principales: Kaplin, V A, Karakash, A I, Loginov, V A, Rakhmanov, A L, Kourepin, A B, Maevskaia, A I, Rasin, V I, Reshetin, A I, Akindinov, A V, Martemyanov, A N, Sheinkman, V A, Smirnitsky, A V, Kacharova, M S, Lukianov, V N, Shusterman, L P, Grigoriev, V A
Lenguaje:eng
Publicado: 2000
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/689150
Descripción
Sumario:<HTML> <HEAD> <h2>Abstract</h2> </HEAD> <P> <BODY> <P> The first prototype of a Cherenkov counter consisting of a quartz radiator of rectangular shape 25x30x12 mm (30 mm along the particles' trajectories) and/or PMTs Hamamatsu R3432-01 and FEU-187 have been tested at proton/pion beam with 1.19 GeV/c momenta. Time resolution better than 50 ps (sigma) has been obtained for both types of the PMTs at different voltages. The dynamic ranges of both types of PMTs was measured with a pulsed laser (500 ps FWHM). For both types of the PMTs the dynamic range, with a time resolution of better than 50 ps, exceeds 100, thus providing cover to the expected dynamic range for the ALICE experiment for p-p, Ca-Ca and Pb-Pb runs. </BODY> </HTML>

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