Internal electron conversion of the isomeric {sup 57}Fe nucleus state with an energy of 14.4 keV excited by the radiation of the plasma of a high-power femtosecond laser pulse
Abstract
We recorded the spectrum of delayed secondary electrons ejected from the target, which was coated with a layer of iron enriched with the {sup 57}Fe isotope to 98%, under its irradiation by fluxes of broadband X-ray radiation and fast electrons from the plasma produced by a femtosecond laser pulse at an intensity of 10{sup 17} W cm{sup -2}. Maxima were identified at energies of 5.6, 7.2, and 13.6 keV in the spectrum obtained for a delay of 90 - 120 ns. The two last-listed maxima owe their origin to the internal electron conversion of the isomeric level with an energy of 14.4 keV and a lifetime of 98 ns to the K and L shells of atomic iron, respectively; the first-named level arises from a cascade K - L{sub 2}L{sub 3} Auger process. Photoexcitaion by the X-ray plasma radiation is shown to be the principal channel of the isomeric level excitation. (interaction of laser radiation with matter)
- Authors:
-
- International Laser Center, M. V. Lomonosov Moscow State University, Moscow (Russian Federation)
- Publication Date:
- OSTI Identifier:
- 21544802
- Resource Type:
- Journal Article
- Journal Name:
- Quantum Electronics (Woodbury, N.Y.)
- Additional Journal Information:
- Journal Volume: 41; Journal Issue: 3; Other Information: DOI: 10.1070/QE2011v041n03ABEH014544; Journal ID: ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CONVERSION; ELECTRONS; EXCITATION; IRON 57; IRRADIATION; KEV RANGE 01-10; KEV RANGE 10-100; L SHELL; LASER RADIATION; LASER-PRODUCED PLASMA; LAYERS; PULSES; X RADIATION; ELECTROMAGNETIC RADIATION; ELECTRONIC STRUCTURE; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; FERMIONS; INTERMEDIATE MASS NUCLEI; IONIZING RADIATIONS; IRON ISOTOPES; ISOTOPES; KEV RANGE; LEPTONS; NUCLEI; PLASMA; RADIATIONS; STABLE ISOTOPES
Citation Formats
Golovin, G V, Savel'ev-Trofimov, Andrei B, Uryupina, D S, and Volkov, Roman V. Internal electron conversion of the isomeric {sup 57}Fe nucleus state with an energy of 14.4 keV excited by the radiation of the plasma of a high-power femtosecond laser pulse. United States: N. p., 2011.
Web. doi:10.1070/QE2011V041N03ABEH014544.
Golovin, G V, Savel'ev-Trofimov, Andrei B, Uryupina, D S, & Volkov, Roman V. Internal electron conversion of the isomeric {sup 57}Fe nucleus state with an energy of 14.4 keV excited by the radiation of the plasma of a high-power femtosecond laser pulse. United States. https://doi.org/10.1070/QE2011V041N03ABEH014544
Golovin, G V, Savel'ev-Trofimov, Andrei B, Uryupina, D S, and Volkov, Roman V. 2011.
"Internal electron conversion of the isomeric {sup 57}Fe nucleus state with an energy of 14.4 keV excited by the radiation of the plasma of a high-power femtosecond laser pulse". United States. https://doi.org/10.1070/QE2011V041N03ABEH014544.
@article{osti_21544802,
title = {Internal electron conversion of the isomeric {sup 57}Fe nucleus state with an energy of 14.4 keV excited by the radiation of the plasma of a high-power femtosecond laser pulse},
author = {Golovin, G V and Savel'ev-Trofimov, Andrei B and Uryupina, D S and Volkov, Roman V},
abstractNote = {We recorded the spectrum of delayed secondary electrons ejected from the target, which was coated with a layer of iron enriched with the {sup 57}Fe isotope to 98%, under its irradiation by fluxes of broadband X-ray radiation and fast electrons from the plasma produced by a femtosecond laser pulse at an intensity of 10{sup 17} W cm{sup -2}. Maxima were identified at energies of 5.6, 7.2, and 13.6 keV in the spectrum obtained for a delay of 90 - 120 ns. The two last-listed maxima owe their origin to the internal electron conversion of the isomeric level with an energy of 14.4 keV and a lifetime of 98 ns to the K and L shells of atomic iron, respectively; the first-named level arises from a cascade K - L{sub 2}L{sub 3} Auger process. Photoexcitaion by the X-ray plasma radiation is shown to be the principal channel of the isomeric level excitation. (interaction of laser radiation with matter)},
doi = {10.1070/QE2011V041N03ABEH014544},
url = {https://www.osti.gov/biblio/21544802},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 3,
volume = 41,
place = {United States},
year = {Thu Mar 31 00:00:00 EDT 2011},
month = {Thu Mar 31 00:00:00 EDT 2011}
}