Thermal diffusion of 57Co into rhodium matrix as a second step in preparing Mössbauer sources

Thermal diffusion of 57Co into rhodium matrix was studied. The diffusion degree was evaluated by Mössbauer spectroscopy with the use of α-Fe absorber. The influence of different annealing conditions was investigated. For a set of sources examined, smooth and rounded Lorentzian lines were observed. T...

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Bibliographic Details
Published in:Applied radiation and isotopes 2011-09, Vol.69 (9), p.1193-1197
Main Authors: Cieszykowska, Izabela, ŻóŁtowska, MaŁgorzata, Zachariasz, Piotr, Piasecki, Andrzej, Janiak, Tomasz, Mielcarski, MieczysŁaw
Format: Article
Language:English
Subjects:
57Co/Rh
Diffusion
Mössbauer sources
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Summary:Thermal diffusion of 57Co into rhodium matrix was studied. The diffusion degree was evaluated by Mössbauer spectroscopy with the use of α-Fe absorber. The influence of different annealing conditions was investigated. For a set of sources examined, smooth and rounded Lorentzian lines were observed. The main spectra parameters are fairly acceptable with respect to the typical obtainable values for α-Fe absorbers in Mössbauer spectroscopy. The results obtained confirm that the deposited 57Co diffused almost completely into rhodium matrix without substantial loss of the activity deposited.
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2011.03.040