Recent aging studies for the ATLAS transition radiation tracker

The transition radiation tracker (TRT) is one of the three subsystems of the inner detector of the ATLAS experiment. It is designed to operate for 10 yr at the LHC, with integrated charges of similar to 10 C/cm of wire and radiation doses of about 10 Mrad and 2 multiplied by 10**1**4 neutrons/cm**2....

Descripción completa

Detalles Bibliográficos
Autores principales: Capéans-Garrido, M, Åkesson, T, Anghinolfi, F, Arik, E, Baker, O K, Baron, S, Benjamin, D, Bertelsen, H, Bondarenko, V, Bychkov, V, Callahan, J, Cardiel-Sas, L, Catinaccio, A, Cetin, S A, Cwetanski, Peter, Dam, M, Danielsson, H, Dittus, F, Dologshein, B, Dressnandt, N, Driouichi, C, Ebenstein, W L, Eerola, Paule Anna Mari, Farthouat, Philippe, Fedin, O, Froidevaux, D, Gagnon, P, Grichkevitch, Y, Grigalashvili, N S, Hajduk, Z, Hansen, P, Kayumov, F, Keener, P T, Kekelidze, G D, Khristatchev, A, Konovalov, S, Koudine, L, Kovalenko, S, Kowalski, T, Kramarenko, V A, Krüger, K, Laritchev, A, Lichard, P, Luehring, F C, Lundberg, B, Maleev, V, Markina, I, McFarlane, K W, Mialkovski, V, Mindur, B, Mitsou, V A, Morozov, S, Munar, A, Muraviev, S, Nadtochy, A, Newcorner, F M, Ogren, H, Oh, S H, Olszowska, J, Passmore, S, Patritchev, S, Peshekhonov, V D, Petti, R, Price, M, Rembser, C, Rohne, O, Romaniouk, A, Rust, D R, Ryabov, Yu, Ryzhov, V, Shchegelskii, V, Seliverstov, D M, Shin, T, Shmeleva, A, Smirnov, S, Sosnovtsev, V V, Soutchkov, V, Spiridenkov, E, Szczygiel, R, Tikhomirov, V, Van Berg, R, Vassilakopoulos, V I, Vassilieva, L, Wang, C, Williams, H H, Zalite, A
Lenguaje:eng
Publicado: 2004
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1109/TNS.2004.829496
http://cds.cern.ch/record/816799
Descripción
Sumario:The transition radiation tracker (TRT) is one of the three subsystems of the inner detector of the ATLAS experiment. It is designed to operate for 10 yr at the LHC, with integrated charges of similar to 10 C/cm of wire and radiation doses of about 10 Mrad and 2 multiplied by 10**1**4 neutrons/cm**2. These doses translate into unprecedented ionization currents and integrated charges for a large-scale gaseous detector. This paper describes studies leading to the adoption of a new ionization gas regime for the ATLAS TRT. In this new regime, the primary gas mixture is 70%Xe-27%CO**2-3%O**2. It is planned to occasionally flush and operate the TRT detector with an Ar-based ternary mixture, containing a small percentage of CF**4, to remove, if needed, silicon pollution from the anode wires. This procedure has been validated in realistic conditions and would require a few days of dedicated operation. This paper covers both performance and aging studies with the new TRT gas mixture. 12 Refs.

Ejemplares similares