PAMELA is a cosmic rays detector flying in a high inclination (70o), low Earth Orbit (350- 600 km) on board the Resurs-DK1 satellite. It is a multi-purpose device composed of a permanent magnet spectrometer to provide particle charge, rigidity and incoming angle information. A series of six segmented scintillator counters arranged at its extremities provides redundant Time-of-Flight and charge information. Lepton/hadron identification is performed by a Silicon-Tungsten calorimeter and a Neutron detector placed at the bottom of the device. An Anticounter system is used offline to reject false triggers coming from interactions with the satellite. The device is capable of detecting protons (80MeV − 700GeV ), antiprotons (80 MeV-190 GeV), electrons (50 MeV - 400 GeV), positrons (50 MeV - 270 Gev) and nuclei (≃ 100 MeV/n - 200 GeV/nuc). For its characteristics PAMELA is capable of addressing various items of heliospheric physics performing for the first time a very precise measurement of the high energy component in solar events and to detect directly positrons produced in these events. Up to now three solar particle events - generated by active region 930 between December 7 and 17 2006 have been detected. We will describe the observational capabilities of the detector in relation of Solar physics.
Solar cosmic ray observations with PAMELA experiment / Casolino, M.; Adriani, O.; Ambriola, M.; Barbarino, G.C.; Basili, A.; Bazilevskaja, G.A.; Bellotti, R.; Boezio, M.; Bogomolov, E.A.; Bonechi, L.; Bongi, M.; Bongiorno, L.; Bonvicini, V.; Bruno, A.; Cafagna, F.; Campana, D.; Carlson, P.; Castellini, G.; De Marzo, C.; Conrad, J.; De Pascale, M.P.; De Rosa, G.; Di Felice, V.; Fedele, D.; Galper, A.M.; Hofverberg, P.; Koldashov, S.V.; Krutkov, S.Yu.; Kvashnin, A.N.; Lundquist, J.; Maksumov, O.; Malvezzi, V.; Marcelli, L.; Menn, W.; Mikhailov, V.V.; Minori, M.; Misin, S.; Mocchiutti, E.; Morselli, A.; Nikonov, N.N.; Orsi, S.; Osteria, G.; Papini, P.; Pearce, M.; Picozza, P.; Ricci, M.; Ricciarini, S.B.; Runtso, M.F.; Russo, S.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stozhkov, Yu.I.; Taddei, E.; Vacchi, A.; Vannuccini, E.; Vasilyev, G.; Voronov, S.A.; Yurkin, Y.T.; Zampa, G.; Zampa, N.; Zverev, V.G.. - ELETTRONICO. - 1:(2007), pp. 639-642. (Intervento presentato al convegno 30th International Cosmic Ray Conference, ICRC 2007 tenutosi a Merida, Yucatan, mex nel 2007).
Solar cosmic ray observations with PAMELA experiment
ADRIANI, OSCAR;BONGI, MASSIMO;
2007
Abstract
PAMELA is a cosmic rays detector flying in a high inclination (70o), low Earth Orbit (350- 600 km) on board the Resurs-DK1 satellite. It is a multi-purpose device composed of a permanent magnet spectrometer to provide particle charge, rigidity and incoming angle information. A series of six segmented scintillator counters arranged at its extremities provides redundant Time-of-Flight and charge information. Lepton/hadron identification is performed by a Silicon-Tungsten calorimeter and a Neutron detector placed at the bottom of the device. An Anticounter system is used offline to reject false triggers coming from interactions with the satellite. The device is capable of detecting protons (80MeV − 700GeV ), antiprotons (80 MeV-190 GeV), electrons (50 MeV - 400 GeV), positrons (50 MeV - 270 Gev) and nuclei (≃ 100 MeV/n - 200 GeV/nuc). For its characteristics PAMELA is capable of addressing various items of heliospheric physics performing for the first time a very precise measurement of the high energy component in solar events and to detect directly positrons produced in these events. Up to now three solar particle events - generated by active region 930 between December 7 and 17 2006 have been detected. We will describe the observational capabilities of the detector in relation of Solar physics.
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