Primary Radiolytic Reactions in the Auger Blob Formed by Radioactive Transformation of ^{57}Co into ^{57}Fe in Frozen Aqueous Medium

• Authors: S. Stepanov , Yu. Perfil'ev , V. Byakov , L. Kulikov
• Languages of publication: EN

Abstracts

EN

The emission of the Auger electrons during the formation of the Mössbauer nucleus ^{57}Fe leads not only to the formation of multicharged ^{57}Fe^{n+} ion, but also to the appearance of the Auger blob, a cloud of several hundreds of ion-electron pairs (H_2O^{+}, e¯) in the solvent around the Fe ion. Fast radiation-chemical reactions therein determine the experimentally observable ratio of the yields of final chemically stable charged states of the Mössbauer ions (Fe^{3+} and Fe^{2+}). This ratio strongly depends on reaction rates constants between H_2O^{+}, e¯, and the solute S. We have shown that in contrast to radiation chemical data the reactivity of NO_{3}^{-} anions with quasi-free track electrons in frozen aqueous solutions exceeds those of H_{3}O^{+}, ClO_{4}^{-}, and HSO_{4}^{-} ions only by a factor of three instead of ≈ 100 which follows from the radiation chemical experiments.

Keywords

EN

76.80.+y; 82.50.Kx; 82.80.Ej

Discipline

• 82.50.Kx: Processes caused by X-rays or γ-rays
• 82.80.Ej: X-ray, Mössbauer, and other γ-ray spectroscopic analysis methods
• 76.80.+y: Mössbauer effect; other γ-ray spectroscopy(see also 33.45.+x Mössbauer spectra—in atomic and molecular physics; for biophysical applications, see 87.64.kx; for chemical analysis applications, see 82.80.Ej)

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 125
• Issue: 3
• Pages: 843-845

Dates

published

2014-03

Contributors

author

S. Stepanov

• Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya 25, Moscow, Russia
• National Research Nuclear University "MEPhI", Kashirskoye shosse 31, Moscow, 115409, Russia

author

Yu. Perfil'ev

• Lomonosov's Moscow State University, Chemical Department, Leninskie Gory, Moscow, Russia

author

V. Byakov

• Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya 25, Moscow, Russia
• Lomonosov's Moscow State University, Chemical Department, Leninskie Gory, Moscow, Russia
• D. Mendeleyev University of Chemical Technology of Russia, Miusskaya sq., 9, Moscow, Russia

author

L. Kulikov

• Lomonosov's Moscow State University, Chemical Department, Leninskie Gory, Moscow, Russia

References

• [1] J.M. Friedt, J. Danon, Atomic Energy Rev. 184, 893 (1980)
• [2] V.M. Byakov, Yu.D. Perfil'ev, L.A. Kulikov, S.V. Stepanov, Moscow Univ. Chem. Bull. 64, 259 (2009), doi:10.3103/80027131409050058
• [3] V.M. Byakov, L.A. Kulikov, Yu.D. Perfil'ev, S.V. Stepanov, Physics of Atomic Nuclei 68, 1016 (2005), doi:10.1134/1.1954828 (translated from Yadernaya Fizika 68, 1054 (2005))
• [4] Ya.M. Mil'grom, Yu.D. Perfil'ev, A.M. Babeshkin, Vestn. Mosk. Gos. Univ., Ser. 2. Khim. 18, 227 (1977)
• [5] Yu.D. Perfiliev, L.A. Kulilov, L.T. Bugaenko, A.M. Babeshkin, M.I. Afanasov, J. Inorg. Nucl. Chem. 38, 2145 (1976), doi:10.1016/0022-1902(76)80182-0
• [6] K.Y. Lam, J.W. Hunt, Int. J. Radiat. Phys. Chem. 7, 317 (1975), doi:10.1016/0020-7055(75)90072-8
• [7] B.G. Ershov, G.P. Chernova, A.K. Pikaev, Izv. Akad. Nauk SSSR, Ser. Khim. 1968, 1178 (1968)
• [8] S.V. Stepanov, V.M. Byakov, Yu.D. Perfil'ev, L.A. Kulikov, Bull. Russ. Acad. Sci. Phys. 77, 770 (2013) doi: 10.3103/S1062873813060336 (original Russian text published in: Izv. Ross. Akad. Nauk. Seriya Fiz. 77, 847 (2013))
• [9] Handbook of Radiation Chemistry, Eds. Y. Tabata, Y. Ito, S. Tagawa, CRC Press, Tokyo 1992
• [10] V.M. Byakov, B.G. Ershov, Dokl. Akad. Nauk SSSR 222, 637 (1975)
• [11] J.R. Miller, Chem. Phys. Lett. 22, 180 (1973), doi:10.1016/0009-2614(73)80565-2

Identifiers

DOI

10.12693/APhysPolA.125.843