Thunderstorms as a possible cause of the increased neutron background near the equator
1Bratolyubova-Tsulukidze, LS, 2Golubev, VN, 1Grachev, EA, 1Grigoryan, OR, 3Kunitsyn, ВE, 1Lysakov, DS, 1Kuzhevskiy, BM, 1Nechaev, OYu., 3Usanova, ME 1D.V. Skobeltsin Scientific Research Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia 2S.P. Korolev Rocket and Space Corporation Energia, Moscow Region, Russia 3Lomonosov Moscow State University, Moscow, Russia |
Kosm. nauka tehnol. 2002, 8 ;(Supplement2):184-193 |
https://doi.org/10.15407/knit2002.02s.184 |
Publication Language: Russian |
Abstract: The result of the analysis of experimental data on thermal neutron fluxes obtained onboard the Mir orbital complex (1991) and Kolibri satellite (2002) at an altitude of 400 km is given. It is obtained that the distribution of the near-equatorial neutron flux has a long-term dependence. The increased background values of neutron fluxes with an energy of 0.25 eV – 1.9 MeV, as well as individual bursts of neutrons with an energy of 0.1–1.0 MeV, are observed mainly in two sectors: the Pacific and the African. Thunderstorms are considered as a possible source of phenomena observed near the equator.
|
1. Inan U. S., Burgess W. C., Wolf T. G., Shater D. C. Lightning-Associated Precipitation of MeV Electrons From the inner Radiation Belt. Geophys. Res. Lett., 15 (2), 172–175 (February 1988).
https://doi.org//10.1029/GL015i002p00172
2. Inan U. S., Carpenter D. L. Lightning-Induced Precipitation Events Observed at L~2.4 as Phase and Amplitude Perturbations on Subionosphere VLF Signals. J. Geophys. Res., 92 (A4), 3293–3303 (April 1, 1987).
3. Grigoryan O. R., Sinyakov A. V., Klimov S. I. Energetic Electrons on Lhttps://doi.org//10.1016/S0273-1177(97)00698-4
4. Bratolyubova-Tsulukidze L. S., Grachev E. A., Grigoryan O. R., Nechaev O. Yu. Near-Equatorial Electrons as Measured onboard the Mir Space Station. Cosmic Res., 39 (6), 602–612 (2001).
https://doi.org//10.1023/A:1013053327513
5. Stephankis S. J., Levine L. S., Mosher D., et al. Neutron production in exploding wire discharges. Phys. Rev. Lett., 29, 568–569 (1972).
https://doi.org//10.1103/PhysRevLett.29.568
6. Libby L. M., Luken H. R. Production of radiocarbon in tree rings by lightning bolts. J. Geophys. Res., 78, 5902–5903 (1973).
https://doi.org//10.1029/JB078i026p05902
7. Libby L. M., Luken H. R. Comments on ‘Are neutrons generated by lighting by R. L. Fiescher, J. A. Plumer, and K. Crouch’. J. Geophys. Res., 80, 3505 (1975).
https://doi.org//10.1029/JC080i024p03506
8. Shyam A., Kaushik T. C. Observation of neutron bursts associated with atmospheric lighting discharge. J. Geophys. Res., 104 (A4), 6867–6869 (1999).
https://doi.org//10.1029/98JA02683
9. Daubechies I. Ten lectures on Wavelets. Society for Industrial and Applied Mathematics, 357 p. (1992).
https://doi.org//10.1137/1.9781611970104
10. Christian H. J., Blakeslee R. J., Boccoppio D. J., et al. Global frequency and distribution of lightning as observed by the optical transient detector (OTD). In: Proceeding of the 11th international conference on atmospheric electricity, Guntersville, Alabama, June 7-11, 1999, 726–729 (1999).