EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Bakaldin et al. 2002
Bakaldin, A., Galper, A., Koldashov, S., Korotkov, M., Leonov, A., Mikhailov, V., Murashov, A., Voronov, S., Bidoli, V., Casolino, M., De Pascale, M., Furano, G., Iannucci, A., Morselli, A., Picozza, P., Sparvoli, R., Boezio, M., Bonvicini, V., Cirami, R., Vacchi, A., Zampa, N., Ambriola, M., Bellotti, R., Cafagna, F., Ciacio, F., Circella, M., De Marzo, C., Adriani, O., Papini, P., Spillantini, P., Straulino, S., Vannuccini, E., Ricci, M. and Castellini, G. (2002). Geomagnetically trapped light isotopes observed with the detector NINA. Journal of Geophysical Research 107: doi: 10.1029/2001JA900172. issn: 0148-0227.

The detector New Instrument for Nuclear Analysis (NINA) aboard the satellite Resurs-01-N4 detected hydrogen and helium isotopes geomagnetically trapped, while crossing the South Atlantic Anomaly. Deuterium and tritium at L shell < 1.2 were unambiguously recognized. The 3He and 4He power law spectra, reconstructed at L shell = 1.2 and B < 0.22 G, have indices equal to 2.30 ¿ 0.08 in the energy range 12--50 MeV nucleon-1 and 3.4 ¿ 0.2 in 10--30 MeV nucleon-1, respectively. The measured 3He/4He ratio and the reconstructed deuterium profile as a function of L shell bring one to the conclusion that the main source of radiation belt light isotopes at Resurs altitudes (~800 km) and for energy greater than 10 MeV nucleon-1 is the interaction of trapped protons with residual atmospheric helium.

BACKGROUND DATA FILES

Abstract

Keywords
Magnetospheric Physics, Energetic particles, trapped, Magnetospheric Physics, Magnetosphere--inner, Magnetospheric Physics, Instruments and techniques
Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit