Title of article
Charge determination of nuclei with the AMS-02 silicon tracker
Author/Authors
Alpat، نويسنده , , B. and Ambrosi، نويسنده , , G. and Azzarello، نويسنده , , Ph. and Battiston، نويسنده , , M. R. Del Bene، نويسنده , , P. and Bertucci، نويسنده , , B. and Bizzaglia، نويسنده , , S. and Bizzarri، نويسنده , , M. and Blasko، نويسنده , , S. and Bourquin، نويسنده , , M. and Bouvier، نويسنده , , Ph. and Burger، نويسنده , , W.J. and Capell، نويسنده , , M. Morandi Cecchi، نويسنده , , C. and Chang، نويسنده , , Y.H. and Cortina، نويسنده , , E.، نويسنده ,
Pages
10
From page
121
To page
130
Abstract
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 × 496 mm 2 , verified in the tests contains 12 sensors. Good charge resolution is observed up to iron.
Keywords
AMS-02 , Silicon tracker , Charge of nuclei , energy loss
Journal title
Astroparticle Physics
Record number
2025755
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