Charge determination of nuclei with the AMS-02 silicon tracker

The silicon tracker of the AMS-02 detector measures the trajectory in three dimensions of electrons, protons and nuclei to high precision in a dipole magnetic field and thus measures their rigidity (momentum over charge) and the sign of their charge. In addition, it measures the specific energy loss...

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Detalles Bibliográficos
Autores principales: Alpat, B, Ambrosi, G, Azzarello, P, Battiston, R, Bene, P, Bertucci, B, Bizzaglia, S, Bizzarri, M, Blasko, S, Bourquin, M, Bouvier, P, Burger, W J, Capell, M, Cecchi, C, Chang, Y H, Cortina, E, Dinu, N, Esposito, G, Fiandrini, E, Haas, D, Hakobyan, H, Ionica, M, Ionica, R, Kounine, A, Koutsenko, V F, Lebedev, A, Lechanoine-Leluc, C, Lin, C H, Masciocchi, F, Menichelli, M, Natale, S, Paniccia, M, Papi, A, Pauluzzi, M, Perrin, E, Pohl, M, Rapin, D, Richeux, J P, Wallraff, W, Willenbrock, M, Zuccon, P
Lenguaje:eng
Publicado: 2005
Materias:
Engineering
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2004.11.012
http://cds.cern.ch/record/903025
Descripción
Sumario:The silicon tracker of the AMS-02 detector measures the trajectory in three dimensions of electrons, protons and nuclei to high precision in a dipole magnetic field and thus measures their rigidity (momentum over charge) and the sign of their charge. In addition, it measures the specific energy loss of charged particles to determine the charge magnitude. Ladders from the AMS-02 tracker have been exposed to ion beams at CERN and GSI to study their response to nuclei from helium up to the iron group. The longest ladder, 72 multiplied by 496mm2, verified in the tests contains 12 sensors. Good charge resolution is observed up to iron.

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