In-situ observation of movement of atoms and identification of thorium atoms by core-loss electron imaging

In-situ observation of the process of coagulation and decomposition of long chain molecules of thorium-pyromeritate dispersed on graphite thin films and their crystallization process to small crystals of ThO2 under electron beam irradiation have been recorded by using the TV system which is located...

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Veröffentlicht in:Microscopy microanalysis microstructures (Les Ulis) 1993-04, Vol.4 (2-3), p.143-152
Hauptverfasser: Makita, Y., Hashimoto, H., Nagaoka, N., Kumao, A.
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container_title Microscopy microanalysis microstructures (Les Ulis)
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creator Makita, Y.
Hashimoto, H.
Nagaoka, N.
Kumao, A.
description In-situ observation of the process of coagulation and decomposition of long chain molecules of thorium-pyromeritate dispersed on graphite thin films and their crystallization process to small crystals of ThO2 under electron beam irradiation have been recorded by using the TV system which is located behind the fluorescent screen of JEOL 400 kV electron microscope. Identification of thorium (Th) atoms is carried out using only the electrons having suffered an energy loss corresponding to the excitation of the O4,5 level in Th atoms.
doi_str_mv 10.1051/mmm:0199300402-3014300
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subjects 0778
6180F
Atom migration
Chemical decomposition
Crystallization
Electron energy loss spectra
Electron irradiation
Energy filtering
In situ
O Th
TEM
ThO2
Thorium atom
Thorium oxides
title In-situ observation of movement of atoms and identification of thorium atoms by core-loss electron imaging
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