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Journal
2010 | 8 | 1 | 95-100
Article title

On the modification of methods of nuclear chronometry in astrophysics and geophysics

Content
Title variants
Languages of publication
EN
Abstracts
EN
In practically all known methods of nuclear chronometry until now, research has usually taken into account the life-times of only the fundamental states of α-radioactive nuclei. But in the processes of nuclear synthesis in stars and under the influence of constant cosmic radiation on the surfaces of planets the excitations of the α-radioactive nuclei are still ongoing. Between these processes there are states with excited α-particles inside the parent nuclei leading to much smaller life-times. And inside the large masses of stellar, terrestrial and meteoric substances there are transitions between different internal conditions of radioactive nuclei that are accompanied by infinite chains of γ-radiations with subsequent γ-absorptions, further γ-radiations, etc. For a description of the α-decay evolution that accounts for such excited states and multiple γ-radiations and γ-absorptions inside stars, and under the influence of cosmic radiation on the Earth’s surface we present a quantum-mechanical approach, which is based on the generalized Krylov-Fock theorem. A few simple estimations are also presented. These approaches lead to the conclusion that the usual (non-corrected) “nuclear clocks” do really point not to realistic values but to the upper limits of the durations of α-decay in stellar and planet processes.
Publisher

Journal
Year
Volume
8
Issue
1
Pages
95-100
Physical description
Dates
published
1 - 2 - 2010
online
15 - 11 - 2009
Contributors
  • Institute for Nuclear Research of the National Ukrainian Academy of Sciences, Laboratory of Time Analysis of Nuclear Processes, prospekt Nauki 47, Kiev, 03028, Ukraine, olkhovsky@mail.ru
  • Institute for Nuclear Research of the National Ukrainian Academy of Sciences, Laboratory of Time Analysis of Nuclear Processes, prospekt Nauki 47, Kiev, 03028, Ukraine
References
  • [1] J. Audouze, S. Vauclair, An Introduction to Nuclear Astrophysics, The Formation and the Evolution of Matter in the Universe (Reidel Publish. Comp. 1980) Ch. VIII
  • [2] V. S. Olkhovsky, Atti dell’Accademia Peloritana dei Pericolanti, Vol. LXXVI (UniversitaŠ di Messina, Messina, Italy, 1998) 59
  • [3] V. S. Olkhovsky, Influence of excited radioactive nuclei for results in large-scale nuclear chronometry, In: Proceedings of the International Conference of Nuclear Physics at Border Lines, 21–24 May 2001, Messina, Italy (2001) 241
  • [4] E. Wefers, F. Bosch, T. Faestermann et al., Nucl. Phys. A 626, 215 (1997) http://dx.doi.org/10.1016/S0375-9474(97)00538-1[Crossref]
  • [5] N. S. Krylov, V. A. Fock, Zh. Eksp. Teor. Fiz.+ 17, 93 (1947)
  • [6] V. S. Olkhovsky, Izv. A. N. SSSR Fiz.+ 49, 938 (1985)
  • [7] V. S. Olkhovsky, N. L. Doroshko, G. A. Prokopets, Izv. A. N. SSSR Fiz.+ 54, 988 (1990)
  • [8] V. S. Olkhovsky, Soviet Journal Particles and Nuclei 15, 130 (1984)
  • [9] V. S. Olkhovsky, Nukleonika 35, 99 (1990)
  • [10] M.W. Friedlander, Cosmic Rays (Canbridge, MA: Harward University Press, 1989) 1601
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11534-009-0074-0
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