PAMELA is a satellite borne experiment designed to study with great accuracy cosmic rays of galactic, solar, and trapped nature, with particular focus on the antimatter component. The detector consists of a permanent magnet spectrometer core to provide rigidity and charge sign information, a Time-of-Flight system for velocity and charge information, a Silicon-Tungsten calorimeter and a Neutron detector for lepton/hadron identification. The beta and rigidity information allow to identify isotopes for Z = 1 and Z = 2 particles in the energy range 100 MeV/n to 1 GeV/n. In this work we will present observation of cosmic rays D and He isotopes at the 23rd solar minimum from 2006 to 2008. Specifically we will discuss the ratios D/H and 3He/4He as a function of time and compare the results with existing measurements and models.
Measurement of Deuterium and 3He component in cosmic rays with PAMELA experiment / Formato, V., Cafagna, F., Adriani, O., Barbarino, G.C., Bazilevskaya, G.A., Bellotti, R., Boezio, M., Bogomolov, E.A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Consiglio, L., De Pascale, M.P., et al.. - ELETTRONICO. - 6:(2011), pp. 79-81. (32nd International Cosmic Ray Conference, ICRC 2011 Beijing, chn 2011) [10.7529/ICRC2011/V06/0842].
Measurement of Deuterium and 3He component in cosmic rays with PAMELA experiment
ADRIANI, OSCAR;BONGI, MASSIMO;
2011
Abstract
PAMELA is a satellite borne experiment designed to study with great accuracy cosmic rays of galactic, solar, and trapped nature, with particular focus on the antimatter component. The detector consists of a permanent magnet spectrometer core to provide rigidity and charge sign information, a Time-of-Flight system for velocity and charge information, a Silicon-Tungsten calorimeter and a Neutron detector for lepton/hadron identification. The beta and rigidity information allow to identify isotopes for Z = 1 and Z = 2 particles in the energy range 100 MeV/n to 1 GeV/n. In this work we will present observation of cosmic rays D and He isotopes at the 23rd solar minimum from 2006 to 2008. Specifically we will discuss the ratios D/H and 3He/4He as a function of time and compare the results with existing measurements and models.
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