The lifetime of radiation belt protons with energies between 1 kev and 1 Mev
1961; American Geophysical Union; Volume: 66; Issue: 10 Linguagem: Inglês
10.1029/jz066i010p03593
ISSN2156-2202
Autores Tópico(s)Atmospheric and Environmental Gas Dynamics
ResumoJournal of Geophysical Research (1896-1977)Volume 66, Issue 10 p. 3593-3595 Letters to the Editor The lifetime of radiation belt protons with energies between 1 kev and 1 Mev Harold Liemohn, Harold LiemohnSearch for more papers by this author Harold Liemohn, Harold LiemohnSearch for more papers by this author First published: October 1961 https://doi.org/10.1029/JZ066i010p03593Citations: 52AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The lifetime of protons in the Van Allen radiation belts is limited by several loss mechanisms. During geomagnetically quiet periods the principal ones are probably Coulomb scattering and charge exchange with the components of the partly ionized exosphere. The Coulomb scattering lifetime has been calculated as a function of proton energy and equatorial scattering density by Wentworth, MacDonald, and Singer [1959]. The charge exchange lifetime is calculated here using experimentally measured cross sections. References Allison, S. K., Experimental results on charge-changing collision of hydrogen and helium atoms and ions at kinetic energies above 0.2 kev, Revs. Modern Phys., 30, 1137– 1168, 1958. Chamberlain, J. W., On a possible velocity dispersion of auroral protons, Astrophys. J., 126, 245– 252, 1957. Chapman, S., Speculations on the atomic hydrogen and the thermal economy of the upper atmosphere, The Threshold of Space M. Zelikoff, 65– 72, Pergamon Press, London, 1957. Fite, W. L., R. F. Stebbings, D. G. Hummer, R. T. Brachmann, Ionization and charge transfer in proton-hydrogen atom collisions, Phys. Rev., 119, 663– 668, 1960. Gringaus, K. I., V. G. Kurt, V. I. Moroz, I. S. Shklovskii, Ionized gas and fast electrons in the vicinity of the earth and in interplanetary space, Doklady Acad. Nauk SSSR, 132, 1062– 1065, 1960. Jastrow, R., Geophysical effects of the trapped particle layer, Revs. Modern Phys., 32, 947– 950, 1960. Johnson, F. S., R. A. Fish, The telluric hydrogen corona, Astrophys. J., 151, 502– 515, 1960. Storey, L. R. O., An investigation of whistling atmospherics, Phil. Trans. Roy. Soc. London, Ser. A., 246, 113– 141, 1953. Stuart, G. W., Satellite-measured radiation, Phys. Rev. Letters, 2, 417– 418, 1959. Tuan, T. F., E. Gerjuoy, Charge transfer in molecular hydrogen, Phys. Rev., 117, 756– 763, 1960. Van Allen, J. A., C. E. McIlwain, G. H. Ludwig, Radiation observations with satellite 1958ϵ, J. Geophys. Research, 64, 271– 286, 1959. Welch Jr., J. A., W. A. Whitaker, Theory of geomagnetically trapped electrons from an artificial source, J. Geophys. Research, 64, 909– 922, 1959. Wentworth, R. C., W. M. MacDonald, S. F. Singer, Lifetimes of trapped radiation belt particles determined by Coulomb scattering, Phys. Fluids, 2, 499– 509, 1959. Citing Literature Volume66, Issue10October 1961Pages 3593-3595 ReferencesRelatedInformation
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