The isotopic compositions of cosmic ray nuclei are of great interest since they directly reflect processes related to cosmic ray propagation through the Galaxy. In six years of data taking, AMS has collected the largest available data set on fluxes of nuclei. For a selected nuclear charge value, the velocity and rigidity give a measurement of particle mass that allows measurement of relative isotopic abundances. The AMS Ring Imaging Čerenkov (RICH) detector provides particle velocity measurements with resolution better than 0.1%, whereas the silicon tracker provides rigidity determination through the measurement of particle's trajectory in the magnetic field of AMS. In this contribution, we present the methodology used to obtain the isotopic composition of helium nuclei with AMS.

Identification of isotopes 3He and 4He with the AMS detector on the International Space Station / Behlmann, M.; Zuccon, P.; Delgado, C.; Giovacchini, F.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 301:(2017), pp. 1-9. ((Intervento presentato al convegno ICRC 2017 tenutosi a Busan; South Korea nel 10th-20th July 2017.

Identification of isotopes 3He and 4He with the AMS detector on the International Space Station

Zuccon P.;
2017

Abstract

The isotopic compositions of cosmic ray nuclei are of great interest since they directly reflect processes related to cosmic ray propagation through the Galaxy. In six years of data taking, AMS has collected the largest available data set on fluxes of nuclei. For a selected nuclear charge value, the velocity and rigidity give a measurement of particle mass that allows measurement of relative isotopic abundances. The AMS Ring Imaging Čerenkov (RICH) detector provides particle velocity measurements with resolution better than 0.1%, whereas the silicon tracker provides rigidity determination through the measurement of particle's trajectory in the magnetic field of AMS. In this contribution, we present the methodology used to obtain the isotopic composition of helium nuclei with AMS.
35th International Cosmic Ray Conference: ICRC 2017: The Astroparticle Physics Conference
Trieste
SISSA
Behlmann, M.; Zuccon, P.; Delgado, C.; Giovacchini, F.
Identification of isotopes 3He and 4He with the AMS detector on the International Space Station / Behlmann, M.; Zuccon, P.; Delgado, C.; Giovacchini, F.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 301:(2017), pp. 1-9. ((Intervento presentato al convegno ICRC 2017 tenutosi a Busan; South Korea nel 10th-20th July 2017.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/266187
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