Trapping and reemission of deuterium implanted in BN

Reemission curves and thermodesorption spectra have been measured for deuterium ions implanted into BN. The thermodesorption spectra consist of several peaks in the range of 400–1100 K. Reemission curves are described by a simple mathematical model including diffusion, second order thermodesorption...

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Bibliographic Details
Published in:Journal of nuclear materials 1992-05, Vol.187 (3), p.254-259
Main Authors: Pisarev, A.A., Smirnov, V.M., Zhdanov, S.K., Varava, A.V., Bandurko, V.V.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
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Summary:Reemission curves and thermodesorption spectra have been measured for deuterium ions implanted into BN. The thermodesorption spectra consist of several peaks in the range of 400–1100 K. Reemission curves are described by a simple mathematical model including diffusion, second order thermodesorption and defect trapping. The recycling factor and defect trapping factor were found to depend exponentially on temperature at T > 600 K, but deviate from this at ambient temperature. It is supposed that some radiation-enhanced and thermally-activated processes dominate at ambient and elevated temperatures, respectively.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(92)90505-F