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Diamond Detectors for Alpha Monitoring in Corrosive Media for Nuclear Fuel Assembly Reprocessing

Published online by Cambridge University Press:  10 February 2011

P. Bergonzo ,
F. Foulon ,
A. Brambilla ,
D. Tromson ,
C. Mer ,
B. Guizard  and
S. Haan
P. Bergonzo
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 [email protected]
F. Foulon
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 Gif-sur-Yvette
A. Brambilla
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 Gif-sur-Yvette
D. Tromson
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 Gif-sur-Yvette
C. Mer
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 Gif-sur-Yvette
B. Guizard
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 Gif-sur-Yvette
S. Haan
Affiliation:
LETI (CEA-Technologies Avancées)/DEIN/SPE, CEA/Saclay, F-91191 Gif-sur-Yvette
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Abstract

Recent advances in the synthesis of diamond films led to the fabrication of new devices that enable the direct measurement of the alpha activity of a corrosive liquid source. Such devices can be directly immersed in radioactive liquid solutions for the in-situ and real time measurement of their alpha activity. We report here on the fabrication of diamond from the chemical vapour deposition (CVD) technique and its use for the monitoring of the alpha activity of a plutonium 239 radioactive source diluted in concentrated nitric acid. Tests have demonstrated the excellent reliability of the CVD diamond detectors, that would give great benefit to the monitoring of the nuclear fuel assembly re-processing, and in particular for corrosive wastes identification and treatment.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 608: Symposium QQ – Scientific Basis for Nuclear Waste Management XXIII , 1999 , 511
Copyright
Copyright © Materials Research Society 2000

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References

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