Study of Thin Double-Gap RPCs for the CMS Muon System

High-sensitivity double-gap phenolic resistive plate chambers (RPCs) are studied for the Phase-2 upgrade of the Compact Muon Solenoid (CMS) muon system at high pseudorapidity η. Whereas the present CMS RPCs have a gas gap thickness of 2 mm, we propose to use thinner gas gaps, which will improve the...

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Detalles Bibliográficos
Autores principales: Lee, K S, Cho, S W, Choi, S, Hong, B, Kang, M, Lim, J H, Jo, Y M, Park, S K, Ryoo, K R, Aly, R, Aly, S, Assran, Y, Mohamed, A, Mahrous, A, Constantini, S, Abbrescia, M, Gelmi, A, Maggi, M, Iaselli, G, Pugliese, G, Sharma, A, Bhatnagar, V, Gupta, R, Kumari, P, Manisha, M, Singh, J, Benussi, L, Bianc, S, Piccolo, D, Primavera, F, Fagot, A, Gul, M, Roskas, C, Tytgat, M, Zagandis, N, Pant, L, Buontempo, S, Buonaura, A, Di Crescenzo, A, Fienga, F, Galati, G, Lista, L, Meola, S, Orso, A, Paolucci, P, Voevodina, E, Hoorani, H, Muhammad, S, Shah, M, Braghieri, A, Montagna, P, Riccardi, C, Salvini, P, Vitulo, P, Ban, Y, Qian, S, Aleksandrov, A, Hadjiiska, R, Iaydjiev, P, Rodozov, M, Soultanov, G, Vutiva, M, Dimitrov, A, Litov, L, Petkov, P, Pavlov, B, Han, D, Wang, Y, Bernal, C, Montoya, C Carrillo, Mora, A Cabrera, Gouzevitch, M, Grenier, G, Lagarde, F, Laktineh, I, Estrada, C Uribe, Eysermans, J, Pedraza, I, Bagaturia, I, Lomidze, D, Lomidze, I, Tsamalaidze, Z, Toriashvili, T, Moreno, S Carrillo, Valencia, F Vazquez, Goh, J, Jeong, S, Kim, T, Yu, I, Hwang, C, Mohammadi, M, Najafabadi, Boghrati, B, Castilla-Valdez, H, Sanchez-Hernandez, A, Crotty, I
Lenguaje:eng
Publicado: 2018
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.3938/jkps.73.1080
http://cds.cern.ch/record/2679679
Descripción
Sumario:High-sensitivity double-gap phenolic resistive plate chambers (RPCs) are studied for the Phase-2 upgrade of the Compact Muon Solenoid (CMS) muon system at high pseudorapidity η. Whereas the present CMS RPCs have a gas gap thickness of 2 mm, we propose to use thinner gas gaps, which will improve the performance of these RPCs. To validate this proposal, we constructed double-gap RPCs with two different gap thicknesses of 1.2 and 1.4 mm by using high-pressure laminated plates having a mean resistivity of about 5 × 10$^{10}$ Ω-cm. This paper presents test results using cosmic muons and$^{137}$Cs gamma rays. The rate capabilities of these thin-gap RPCs measured with the gamma source exceed the maximum rate expected in the new high-η endcap RPCs planned for future Phase-2 runs of the Large Hadron Collider (LHC).

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