Abstract
The paper is devoted to discussing the method of measuring the accumulation of radioactive isotopes 53Mn (with a half-life T = 3.7 million years) and 10Be (T = 2.5 million years) in iron-bearing rocks. Knowledge of the dynamics of the accumulation of these isotopes would allow us to estimate the variations in the intensity of cosmic rays, periods of glaciations and geological changes, as well as climatic processes on the Earth in retrospect of 0.1–10 million years. For an operative study of a large number of samples, it has been proposed to use a low-cost neutron activation method with the implementation of the 53Mn(n, γ)54Mn reaction in a slow neutron reactor. As has been shown, using the 10Be isotope together with 53Mn makes it possible to simultaneously determine both the cosmic-ray fluxes and the shielding time of the corresponding region from cosmic radiation. To obtain the reliable data on cosmic rays, it has been proposed to study rock samples from the lunar surface.
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References
Honda, M. and Arnold, J.R., Effects of cosmic rays on meteorites, in Kosmische Strahlung II (Cosmic Rays II), Berlin: Springer, 1967, Sitte, K., Ed., vol. 46, pp. 613–632.
Shedlovsky, J.P., Cressy, P.J.J., and Kohman, T.P., Cosmogenic radioactivities in the Peace River and Harleton chondrites, J. Geophys. Res., 1967, vol. 72, pp. 5051–5058.
Millard, H.J., Thermal neutron activation: Measurement of cross-section for manganese-53, Science, 1965, vol. 147, pp. 503–504.
Büling, A., Carl, C., Englert, P., et al., Computer assisted multielement analysis of terrestrial and extraterrestrial materials and studies on long-lived cosmogenic 53Mn by neutron activation, J. Radioanal. Chem., 1977, vol. 38, nos. 1–2, pp. 379–390.
Englert, P.A.J., Sarafin, R., Masarik, J., and Reedy, R.C., Cosmogenic 53Mn in the main fragment of the Norton County aubrite, Geochim. Cosmochim. Acta, 1995, vol. 59, pp. 825–830.
Herpers, U. and Sarafin, R., Determination of the spallogenic radionuclides Al-26 and Mn-53 in Antarctic meteorites with respect to cosmic ray exposure and terrestrial age, J. Radioanal. Nucl. Chem., 1987, vol. 110, pp. 191–195.
Honda, M., Nishiizumi, K., Imamura, M., Takaoka, N., Nitoh, O., Horie, K., and Komura, K., Cosmogenic nuclides in the Kirn chondrite, Earth Planet. Sci. Lett., 1982, vol. 57, pp. 101–109.
Englert, P., Herpers, U., Sarafin, R., and Vogt, S., Exposure history of meteorites as deduced by subnanogram of manganese-53 radiochemical neutron activation analysis, J. Radioanal. Nucl. Chem., 1987, vol. 113, pp. 119–123.
Nishiizumi, K., Murrell, M.T., and Arnold, J.R., Mn-53 profiles in four Apollo surface cores, J. Geophys. Res., 1983, vol. 88, no. S01, pp. B211–B219.
Knie, K., Faestermann, T., and Korschinek, G., AMS at the Munich gas-filled analyzing magnet system GAMS, Nucl. Instrum. Methods phys. Res., 1997, vol. B123, pp. 128–131.
Schaefer, J.M., Faestermann, T., Herzog, G.F., et al., Terrestrial manganese-53—A new monitor of earth surface processes, Earth Planet. Sci. Lett., 2006, vol. 251, pp. 334–345.
Barashenkov, V.S., Sobolevskii, N.M., and Toneev, V.D., Accumulation of cosmogenic isotopes in green meteorites, Geokhimiya, 1972, vol. 11, pp. 1325–1330.
Lavrukhina, A.K., New data on temporal and spatial variations of cosmic rays in the solar system (according to meteorite data), Izv. Akad. Nauk SSSR, Ser. Fiz., 1969, vol. 33, pp. 1870–1876.
Kocharov, G.E., Cosmic ray intensity and cosmogenic isotopes, in Trudy XII Leningradskogo seminara po kosmofizike FTI AN SSSR (Proceedings of the Leningrad Seminar on Cosmophysics at the Institute of Physics and Technology of the USSR Academy of Sciences), Leningrad, 1982, pp. 203–207.
Kocharov, G.E., Experimental paleoastrophysics: Advances and prospects, Soros. Obraz. Zh., 1996, vol. 11, pp. 66–72.
Dementyev, A. and Sobolevsky, N., SHIELD—universal Monte Carlo hadron transport code: Scope and applications, Radiat. Meas., 1999, vol. 30, pp. 553–557.
Ziegler, J., Terrestrial cosmic ray intensities, IBM J. Res. Dev., 1998, vol. 42, pp. 107–110.
Lebedev, S.G., Akulinichev, S.V., Iljinov, A.S., and Yants, V.E., A gaseous radiochemical method for registration of ionizing radiation and its possible applications in science and economy, Nucl. Instrum. Methods Phys. Res., 2006, vol. A561, pp. 90–99.
Abdurashitov, D.N., Koptelov, E.A., Lebedev, S.G., and Yants, V.E., A gaseous radiochemical neutron monitor, Instrum. Exp. Tech., 2004, vol. 47, no. 3, pp. 294–299.
Herzog, G.F., Cressy, P.J., and Carver, E.A., Shielding effects in Norton County and other aubrites, J. Geophys. Res., 1977, vol. 82, pp. 3430–3436.
Denisov, A.N., Kuznetsov, N.V., Nymmik, R.A., Panasyuk, M.I., and Sobolevskii, N.M., On the problem of lunar radiation environment, Cosmic Res., 2010, vol. 48, no. 6, pp. 509–516.
Denisov, A.N., Kuznetsov, N.V., Nymmik, R.A., Panasyuk, M.I., and Sobolevsky, N.M., Assessment of the radiation environment on the Moon, Acta Astronaut., 2011, vol. 68, pp. 1440–1447.
Fimiani, L., Interstellar radionuclides in lunar samples, Doctoral (Natural Sciences) Dissertation, Munich: Technical University of Munich, 2014.
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Original Russian Text © V.E. Yants, S.G. Lebedev, N.M. Sobolevsky, 2017, published in Kosmicheskie Issledovaniya, 2017, Vol. 55, No. 5, pp. 353–358.
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Yants, V.E., Lebedev, S.G. & Sobolevsky, N.M. Geochronology and monitoring of cosmic rays for accumulating cosmogenic isotopes 53Mn and 10Be in terrestrial rocks. Cosmic Res 55, 333–337 (2017). https://doi.org/10.1134/S0010952517050082
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DOI: https://doi.org/10.1134/S0010952517050082