Spectra of solar neutrons with energies of ~10–1000 MeV in the PAMELA experiment in the flare events of 2006–2015

Bogomolov, E. A.; Adriani, O.; Bazilevskaya, G. A.; Barbarino, G. C.; Bellotti, R.; Boezio, M.; Bonvicini, V.; Bongi, M.; Bottai, S.; Bruno, A.; Vacchi, A.; Vannuccini, E.; Vasilyev, G. I.; Voronov, S. A.; Galper, A. M.; De Santis, C.; Di Felice, V.; Zampa, G.; Zampa, N.; Casolino, M.; Campana, D.; Karelin, A. V.; Carlson, P.; Castellini, G.; Cafagna, F.; Kvashnin, A. A.; Kvashnin, A. N.; Koldashov, S. V.; Koldobskiy, S. A.; Krutkov, S. Y.; Leonov, A. A.; Mayorov, A. G.; Malakhov, V. V.; Martucci, M.; Marcelli, L.; Menn, W.; Merge, M.; Mikhailov, V. V.; Mocchiutti, E.; Monaco, A.; Mori, N.; Munini, R.; Osteria, G.; Panico, B.; Papini, P.; Picozza, P.; Pearce, M.; Ricci, M.; Ricciarini, S. B.; Runtso, M. F.; Simon, M.; Sparvoli, R.; Spillantini, P.; Stozhkov, Y. I.; Yurkin, Y. T.

doi:10.3103/S1062873817020113

The first results from measuring the spectra of solar neutrons with energies of ~10–1000 MeV in the solar flares of 2006–2015 observed by the PAMELA international space experiment are presented. The PAMELA neutron detector with 3He counters and a moderator with an area of 0.18 m2 allows us to estimate the flux of solar neutrons during solar flares. Solar neutrons with energies of ~10–1000 MeV likely occurred in 21 out of the 24 analyzed flares of 2006–2015.

Spectra of solar neutrons with energies of ~10–1000 MeV in the PAMELA experiment in the flare events of 2006–2015 / Bogomolov, E.A., Adriani, O., Bazilevskaya, G.A., Barbarino, G.C., Bellotti, R., Boezio, M., Bonvicini, V., Bongi, M., Bottai, S., Bruno, A., Vacchi, A., Vannuccini, E., Vasilyev, G.I., Voronov, S.A., Galper, A.M., De Santis, C., Di Felice, V., Zampa, G., Zampa, N., Casolino, M., et al.. - In: BULLETIN OF THE RUSSIAN ACADEMY OF SCIENCES. PHYSICS. - ISSN 1062-8738. - 81:2(2017), pp. 132-135. [10.3103/S1062873817020113]