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Charge determination of nuclei with the AMS-02 silicon tracker

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Alpat, B. [--] G. Ambrosi [--] Azzarello, P. [--] Battiston, R. [--] Bene, P. [--] Cortina Gil, Eduardo [UCL]

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, View the MathML source, verified in the tests contains 12 sensors. Good charge resolution is observed up to iron.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2005
Language Anglais
Journal information "Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment" - Vol. 540, no.1, p. 121–130 (2005)
Peer reviewed yes
Publisher Elsevier BV * North-Holland ((Netherlands) Amsterdam)
issn 0168-9002
e-issn 1872-9576
Publication status Publié
Affiliation UCL - SST/IRMP - Institut de recherche en mathématique et physique
Keywords AMS-02 ; Silicon tracker ; Energy loss ; Charge of nuclei
Links
Bibliographic reference Alpat, B. ; G. Ambrosi ; Azzarello, P. ; Battiston, R. ; Bene, P. ; et. al. Charge determination of nuclei with the AMS-02 silicon tracker. In: Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, Vol. 540, no.1, p. 121–130 (2005)
Permanent URL http://hdl.handle.net/2078.1/137262