Solar modulation of the spectra of protons and helium nuclei in the PAMELA experiment

• Published in: Bulletin of the Russian Academy of Sciences. Physics Vol. 75; no. 6; pp. 779 - 781
• Main Authors: Maiorov, A. G., Adriani, O., Barbarino, G., Bazilevskaia, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bonechi, L., Bongi, M., Bonvicini, V., Borisov, S. V., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Danil’chenko, I. A., de Pascale, M. P., di Felice, V., Gal’per, A. M., Gillard, V., Grishantseva, L. A., Jerse, G., Karelin, A. V., Koldashov, S. V., Koldobskii, S. A., Krutkov, S. Yu, Kvashnin, A. N., Leonov, A. A., Malakhov, V. V., Malvezzi, V., Marcelli, L., Menn, W., Mikhailov, V. V., Mocchiutti, E., Mori, N., Nikonov, N. V., Osteria, G., Papini, P., Pearce, M., Picozza, P., Pizzolotto, C., Ricci, M., Ricciarini, S., Runtso, M. F., Simon, M., De Simone, N., Sparvoli, R., Spillantini, P., Stozhkov, Yu. I., Vacchi, A., Vannuccini, E., Vasil’ev, G. I., Voronov, S. A., Wu, Y., Yurkin, Yu. T., Zampa, G., Zampa, N., Zverev, V. G.
• Format: Journal Article
• Language: English
• Published: Heidelberg Allerton Press, Inc 01.06.2011; Springer Nature B.V
• Subjects: Balloon experiment; Cosmic rays; Energy consumption; Energy measurement; Energy ranges; Energy spectra; Experiments; Fluxes; Force field models; Hadrons; Heavy Ions; Helium; Helium nuclei; Magnetic spectrometers; Modulation; Neutron monitors; Nuclear Physics; Nuclei (nuclear physics); Onboard; Particle fluxes; Physics; Physics and Astronomy; Proceeding of the 31st Russian Conference on Cosmic Rays; Protons; Solar energy; Solar modulation; Spectroscopy; Helium Nucleus; 23rd Solar Cycle; Solar Modulation; Particle Flux; Neutron Monitor
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S1062873811060293

We present the energy spectra of protons and helium nuclei of cosmic rays obtained in the PAMELA experiment on board the satellite RESURS-DK1 for the period from August 2006 to December 2009. The spectra were measured in the energy range of 100 MeV/nucleon to 100 GeV/nucleon using a magnetic spectrometer within the apparatus. Variations in the solar modulation potential for protons and helium nuclei were calculated on the basis of the monthly mean particle fluxes. A force field model was used to compare the modulation with measurements from balloon experiments, and with measurements from a network of neutron monitors.