Transition Radiation Spectra of Electrons from 1 to 10 GeV/c in Regular and Irregular Radiators

We present measurements of the spectral distribution of transition radiation generated by electrons of momentum 1 to 10 GeV/c in different radiator types. We investigate periodic foil radiators and irregular foam and fiber materials. The transition radiation photons are detected by prototypes of the...

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Detalles Bibliográficos
Autores principales: Andronic, A, Appelshäuser, H, Bailhache, R, Baumann, C, Braun-Munzinger, P, Bucher, D, Busch, O, Catanescu, V, Chernenko, S P, Christakoglou, P, Fateev, O V, Freuen, S, Garabatos, C, Gottschlag, H, Gunji, T, Hamagaki, H, Herrmann, N, Hoppe, M, Lindenstruth, V, Lippmann, C, Morino, Y, Panebratsev, Yu A, Petridis, A, Petrovici, M, Rusanov, I R, Saitô, S, Sandoval, A, Schicker, R, Soltveit, H K, Stachel, J, Stelzer, H, Vassiliou, Maria, Vulpescu, B, Wessels, J P, Wilk, A, Yurevich, V, Zanevsky, Yu
Lenguaje:eng
Publicado: 2005
Materias:
Other Fields of Physics
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2005.12.188
http://cds.cern.ch/record/911657
Descripción
Sumario:We present measurements of the spectral distribution of transition radiation generated by electrons of momentum 1 to 10 GeV/c in different radiator types. We investigate periodic foil radiators and irregular foam and fiber materials. The transition radiation photons are detected by prototypes of the drift chambers to be used in the Transition Radiation Detector (TRD) of the ALICE experiment at CERN, which are filled with a Xe, CO2 (15 %) mixture. The measurements are compared to simulations in order to enhance the quantitative understanding of transition radiation production, in particular the momentum dependence of the transition radiation yield.

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