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 and 3.4 ± 0.2 in 10-30 MeV/nucleon, 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 is the interaction of trapped protons with residual atmospheric helium.

Geomagnetically trapped light isotopes observed with the detector NINA / 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.; Castellini G.. - In: JOURNAL OF GEOPHYSICAL RESEARCH. - ISSN 0148-0227. - STAMPA. - 107:(2002), pp. 1-8. [10.1029/2001JA900172]

Geomagnetically trapped light isotopes observed with the detector NINA

ADRIANI, OSCAR;PAPINI, PAOLO;SPILLANTINI, PIERO;STRAULINO, SAMUELE;VANNUCCINI, ELENA;CASTELLINI, GUIDO
2002

Abstract

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 and 3.4 ± 0.2 in 10-30 MeV/nucleon, 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 is the interaction of trapped protons with residual atmospheric helium.
2002
107
1
8
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.; Castellini G.
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/907332
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