Corrosion hard CVD diamond alpha particle detectors for nuclear liquid source monitoring

P. Bergonzo, F. Foulon, A. Brambilla, D. Tromson, C. Jany, S. Haan

    Research output: Contribution to journalConference articlepeer-review

    30 Scopus citations


    Corrosion hard alpha particle detectors have been fabricated from thin diamond layers grown on silicon using the microwave enhanced chemical vapour deposition technique (CVD). The devices can be directly immersed in radioactive liquid solutions and enable the real time and in situ measurement of their alpha activity. We report here measurements on devices immersed in a plutonium-239 radioactive source diluted in concentrated nitric acid. The tests have shown excellent reliability of the CVD diamond detectors which would be of great benefit in monitoring nuclear fuel assembly reprocessing. We believe that this is the first detection application of CVD diamond which relies on its corrosion hardness. (C) 2000 Elsevier Science S.A. All rights reserved.

    Original languageBritish English
    Pages (from-to)1003-1007
    Number of pages5
    JournalDiamond and Related Materials
    Issue number3-6
    StatePublished - Apr 2000
    Event10th European Conference on Diamond, Diamond-like Materials, Carbon Nanotubes, Nitrides and Silicon Carbide - Prague, Czech Republic
    Duration: 12 Sep 199917 Sep 1999


    • Alpha particle
    • Chemical vapour deposition diamond
    • Corrosion hardness
    • Radiation detection


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