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Structural peculiarities of aged 238Pu-doped monazite

Published online by Cambridge University Press:  20 February 2017

Andrei A. Shiryaev ,
Maximillian S. Nickolsky ,
Alexey A. Averin ,
Mikhail S. Grigoriev ,
Yan V. Zubavichus ,
Irina E. Vlasova ,
V. G. Petrov  and
Boris E. Burakov
Andrei A. Shiryaev*
Affiliation:
Institute of physical chemistry and electrochemistry RAS, Leninsky pr. 31, korp. 4, 119071, Moscow, Russia Institute of ore geology, petrography, mineralogy and geochemistry RAS, Staromonetny per, 35, 119017, Moscow, Russia Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 1 bld.3, Moscow, 119991, Russia
Maximillian S. Nickolsky
Affiliation:
Institute of physical chemistry and electrochemistry RAS, Leninsky pr. 31, korp. 4, 119071, Moscow, Russia Institute of ore geology, petrography, mineralogy and geochemistry RAS, Staromonetny per, 35, 119017, Moscow, Russia
Alexey A. Averin
Affiliation:
Institute of physical chemistry and electrochemistry RAS, Leninsky pr. 31, korp. 4, 119071, Moscow, Russia
Mikhail S. Grigoriev
Affiliation:
Institute of physical chemistry and electrochemistry RAS, Leninsky pr. 31, korp. 4, 119071, Moscow, Russia
Yan V. Zubavichus
Affiliation:
NRC “Kurchatov institute”, Moscow, Russia
Irina E. Vlasova
Affiliation:
Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 1 bld.3, Moscow, 119991, Russia
V. G. Petrov
Affiliation:
Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 1 bld.3, Moscow, 119991, Russia
Boris E. Burakov
Affiliation:
V. G. Khlopin Radium institute, 2-nd Murinski ave. 28, Sankt-Petersburg, 194021, Russia.
*
*(Email: [email protected])
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Abstract

Results of characterization of 238Pu-doped Eu- and La-monazites using single crystal XRD, Raman and XAFS spectroscopy and TEM are presented. It is shown that despite significant accumulated doses (up to 9x1018 α-decays/gram) the Eu-monazite remains a single crystal. Unusual foamy structures are observed by TEM and are interpreted as recrystallisation of domains damaged by recoil U-ions. Partial recrystallisation of the surface material is also supported by Raman and luminescence data.

Keywords

Puceramicstructural
Type
Articles
Information
MRS Advances , Volume 1 , Issue 63-64: Scientific Basis for Nuclear Waste Management XXXIX , 2016 , pp. 4275 - 4281
Copyright
Copyright © Materials Research Society 2017 

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References

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