Study of the Radiation Resistance of Endohedral Fullerenes of Rare-Earth Elements and Their Water-Soluble Derivatives

Journal Article · Mon Jan 15 04:00:00 EST 2018 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774518010054· OSTI ID:22758272

Lebedev, V. T.; Shilin, V. A.; Szhogina, A. A.; Suyasova, M. V.; Sedov, V. P. ^[1]

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1. Russian Academy of Sciences, National Research Centre “Kurchatov Institute,” Petersburg Nuclear Physics Institute (Russian Federation)

Endohedral metallofullerenes Me@C{sub 2n} (n = 30–50), their hydroxylated derivatives Me@C{sub 2n}(OH){sub 38–40} (Me = Tm, Ho, Eu, Sm, Co), and fullerenol С{sub 60}(OH){sub 38} have been synthesized The radiation resistance of these structures under irradiation in reactor by thermal and fast neutron fluxes in the fluence range of 1018–1019 cm{sup –2} (cadmium ratio of ~10) has been analyzed. Endofullerenols are shown to be more stable in comparison with initial endohedral fullerenes; the molecules containing Eu and Sm (atoms characterized by the largest slow-neutron absorption cross section) turned out to be most stable. The mechanism of the formation of secondary Eu and Sm endofullerenols is discussed taking into account the neutron capture and emission of γ quanta by excited nuclei, which acquire the recoil energy.

• OSTI ID: 22758272
• Journal Information: Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 1 Vol. 63; ISSN 1063-7745; ISSN CYSTE3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
CADMIUM
COMPARATIVE EVALUATIONS
CROSS SECTIONS
EUROPIUM
FAST NEUTRONS
FULLERENES
GAMMA RADIATION
IRRADIATION
NEUTRON FLUX
NEUTRON REACTIONS
RECOILS
SAMARIUM
SLOW NEUTRONS
THERMAL NEUTRONS