Spontaneous and forced decay of atomic nuclei realized in two stages

  • Viacheslav S. Okunev Bauman Moscow State Technical University, 5 Second Baumanskaya Street, 1 building, Moscow 105005, Russia

Abstract

The main purpose of the work is to determine the possibility of cluster decays of superheavy atomic nuclei. The universality of the principle of similarity allows you to apply it to the analysis of not studied physical processes. Analogies are observed in forced and spontaneous decays of atomic nuclei. It is shown that in two stages, processes initiated by external influence are realized: fragmentation reactions, forced fission of stable nuclei, and impact radioactivity. Nuclear reactions of fragmentation and forced fission of stable isotopes of lead and bismuth are realized under the action of particles (hadrons) and light atomic nuclei with a kinetic energy of more than 108 eV. Shock radioactivity is observed in the collision of macroobjects having a crystalline structure at speeds of at least ∼1 km/s. Also, in two stages, some radioactive decays of atomic nuclei are realized, including extremely rare cluster decays. Based on the analogies of the processes considered, some cautious predictions are made about the possibility of cluster decays of atomic nuclei in a wide range of atomic masses.

Author Biography

Viacheslav S. Okunev, Bauman Moscow State Technical University, 5 Second Baumanskaya Street, 1 building, Moscow 105005, Russia

PhD (engineering); associate professor at the department of physics, faculty of fundamental sciences, scientific and educational complex «Fundamental Sciences»

References

  1. Adamov EO, editor. Mashinostroenie yadernoi tekhniki [Mechanical engineering of nuclear technology]. Moscow: Mashinostroenie; 2005. 944 p. (Frolov KV, editor. Mashinostroenie. Entsiklopediya [Engineering. Encyclopedia]; volume IV-25, book 2). Russian.
  2. Okunev VS. Nekotorye paradoksy i zakonomernosti yadernoi fiziki nizkikh energii [Some paradoxes and patterns of low-energy nuclear physics]. Moscow: Bauman Moscow State Technical University; 2016. 319 p. Russian.
  3. Okunev VS. Klasternaya radioaktivnost’: fakty, zakonomernosti, prognozy [Cluster radioactivity: facts, patterns, forecasts]. Morozov AN, editor. Moscow: Bauman Moscow State Technical University; 2019. 242 p. Russian.
  4. Okunev VS. Osnovy prikladnoi yadernoi fiziki i vvedenie v fiziku yadernykh reaktorov [Fundamentals of applied nuclear physics and introduction to the physics of nuclear reactors]. 2nd edition. Moscow: Bauman Moscow State Technical University; 2015. 536 p. (Fizika v tekhnicheskom universitete). Russian.
  5. Okunev VS. Cluster radioactivity: analysis, forecast, new factors of slowing the decay of atomic nuclei. Journal of Physics: Conference Series. 2019;1348(1):012089. DOI: 10.1088/1742-6596/1348/1/012089.
  6. Marakhtanov MK. [On the possible nuclear decay of bismuth due to mechanical shock]. Metally. 2016;5:123–128. Russian.
  7. Marakhtanov MK, Okunev VS. Enfluence of mechanical collision macroobjects on nuclear-physical properties of components of their nuclides. Herald of the Bauman Moscow State Techical University. Series: Natural Sciences. Mathematics. Physics. Chemistry. 2016;1:61–75. Russian. DOI: 10.18698/1812-3368-2016-1-61-75.
  8. Marakhtanov MK, Okunev VS. Physics of the transmutation of stable elements at the collision of macro-objects with regard to high speeds. Journal of Physics: Conference Series. 2018;1115(5):052020. DOI: 10.1088/1742-6596/1115/5/052020.
  9. Marakhtanov MK, Okunev VS. The collective radioactive decay of atomic nuclei initiated by an external mechanical impact: science fiction or a new class of physical processes. Journal of Materials Science Research. 2018;7(2):34–41. DOI: 10.5539/jmsr. v7n2p34.
  10. Guglielmetti A, Faccio D, Bonetti R, Shishkin SV, Tretyakova SP, Dmitriev SV, et al. Carbon radioactivity of 223Ac and a search for nitrogen emission. Journal of Physics: Conference Series. 2008;111(1):012050. DOI: 10.1088/1742-6596/111/1/012050.
  11. Shpolsky E. [Fission of bismuth, lead, thallium, platinum and tantalum by high energy particles]. Uspekhi fizicheskikh nauk. 1948;XXXIV(3):440–441. Russian. DOI: 10.3367/UFNr.0034.194803f.0440.
  12. Goeckermann RH, Perlman I. High energy induced fission of bismuth and lead. Physical Review. 1949;76(5):628–637. DOI: 10.1103/PhysRev.76.628.
  13. Perlman I, Goeckermann RH, Templeton DH, Howland JJ. Fission of bismuth, lead, thallium, platinum, and tantalum with high energy particles. Physical Review. 1947;72(4):352. DOI: 10.1103/PhysRev.72.352.
  14. Nikol’skii BP, editor. Spravochnik khimika. Tom 7 [Handbook of a chemist. Volume 7]. Leningrad: Khimiya; 1968. 507 p. Russian.
  15. Perfilov NA, Lozhkin OV, Shamov VP. [Fragmentation and fission processes in the interaction of high-energy particles with nuclei]. Uspekhi fizicheskikh nauk. 1960;LХХ(1):3–56. Russian.
  16. Karnaukhov VA. Hot and boiling nuclei (To the centenary of E. Rutherford’s discovery). Р15-2011-58 [Preprint]. 2011 [cited 2020 May 10]: [22 p.]. Available from: https://inis.iaea.org/collection/NCLCollectionStore/_Public/43/043/43043577.pdf. Russian.
  17. Karnaukhov VA. [Hot nuclei and a liquid-gas phase transition in a nuclear substance]. Priroda. 2000;2:5–12. Russian.
  18. Serber R. Nuclear reactions at high energies. Physical Review. 1947;72:1114. DOI: 10.1103/PhysRev.72.1114.
  19. BaldinAM, MalakhovAI, SisakyanAN. Nekotorye problemy relyativistskoi yadernoi fiziki i mnozhestvennogo rozhdeniya chastits [Some problems of relativistic nuclear physics and multiple particle production]. Aksenova EK, editor. Dubna: Joint Institute for Nuclear Research; 2001. 62 p. (Fizika elementarnykh chastits i atomnogo yadra; tom 32, vypusk 7). Russian.
  20. Baum EM, Knox HD, Miller TR. Nuclides and isotopes. Chart of the nuclides. 16th edition. [S. l.]: Knolls Atomic Power Laboratory; 2002. 88 p. Co-published by the Lockheed Martin.
  21. Bonetti R, Guglielmetti A. Cluster radioactivity: an overview after twenty years. Romanian Reports in Physics. 2007;59(2): 301–310.
  22. Audi G, Bersillon O, Blachot J, Wapstra AH. The NUBASE evaluation of nuclear properties. Chinese Physics C. 2017;41(3): 030001. DOI: 10.1088/1674-1137/41/3/030001.
  23. Okunev VS. About islands of stability and limiting mass of the atomic nuclei. IOP Conference Series Materials Science and Engineering. 2018;468(1):012012. DOI: 10.1088/1757-899X/468/1/012012.
Published
2020-10-07
Keywords: analogies, fragmentation reaction, radioactive decays, shock radioactivity, superheavy nuclei
Supporting Agencies Bauman Moscow State Technical University
How to Cite
Okunev, V. S. (2020). Spontaneous and forced decay of atomic nuclei realized in two stages. Journal of the Belarusian State University. Physics, 3, 122-135. https://doi.org/10.33581/2520-2243-2020-3-122-135
Section
Atomic Nucleus and Elementary Particle Physics