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.; De Santis, C.; De Simone, N.; Di Felice, V.; Galper, A.M.; Gillard, W.; Grishantseva, L.; Jerse, G.; Karelin, A.V.; Kheymits, M.D.; Koldashov, S.V.; Krutkov, S.Y.; Kvashnin, A.N.; Leonov, A.; Malakhov, V.; Marcelli, L.; Mayorov, A.G.; Menn, W.; Mikhailov, V.V.; Mocchiutti, E.; Monaco, A.; Mori, N.; Nikonov, N.; Osteria, G.; Palma, F.; Papini, P.; Pearce, M.; Picozza, P.; Pizzolotto, C.; Ricci, M.; Ricciarini, S.B.; Rossetto, L.; Sarkar, R.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stozhkov, Y.I.; Vacchi, A.; Vannuccini, E.; Vasilyev, G.; Voronov, S.A.; Yurkin, Y.T.; Wu, J.; Zampa, G.; Zampa, N.; Zverev, V.G.. - ELETTRONICO. - 6:(2011), pp. 79-81. (Intervento presentato al convegno 32nd International Cosmic Ray Conference, ICRC 2011 tenutosi a Beijing, chn nel 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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