The Cosmic Ray Energetics and Mass (CREAM) timing charge detector

The use of detectors based on plastic scintillator with photomultiplier tubes (PMTs) is common in cosmic-ray experiments to differentiate particle charges. However, in the presence of a calorimeter, the standard method of pulse charge integration over a time longer than a PMT pulse is hampered by ab...

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Detalles Bibliográficos
Autores principales: Ahn, H S, Allison, P S, Bagliesi, M G, Beatty, J J, Bigongiari, G, Boyle, P, Childers, J T, Conklin, N B, Coutu, S, DuVernois, M A, Ganel, O, Han, J H, Jeon, J A, Kim, K C, Lee, J K, Lee, M H, Lutz, L, Maestro, P, Malinin, A, Marrocchesi, P S, Minnick, S A, Mognet, S I, Nam, S W, Nutter, S L, Park, I H, Park, N H, Seo, E S, Sina, R, Swordy, S P, Wakely, S P, Wu, J, Yang, J, Yoon, Y S, Zei, R, Zinn, S Y
Lenguaje:eng
Publicado: 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2009.01.170
http://cds.cern.ch/record/2624415
Descripción
Sumario:The use of detectors based on plastic scintillator with photomultiplier tubes (PMTs) is common in cosmic-ray experiments to differentiate particle charges. However, in the presence of a calorimeter, the standard method of pulse charge integration over a time longer than a PMT pulse is hampered by abundant albedo particles. The Cosmic Ray Energetics and Mass (CREAM) instrument surmounts this problem by measuring the peak voltage of the PMT pulse within of a threshold crossing in the readout of a timing charge detector (TCD). The design and performance of the TCD is presented. A charge resolution of for oxygen and for iron is obtained for through-going cosmic-ray particles.

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