Detailed structure analysis of deposit layer in TEXTOR by means of TEM techniques

We examined in detail the structure of the deposit layer on the main graphite belt limiter (ALT-II) in TEXTOR by means of transmission electron microscopy (TEM), electron diffraction, electron energy-loss spectroscopy (EELS) and their combination. The layer consisted mainly of an amorphous carbon ma...

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Bibliographic Details
Published in:Journal of nuclear materials 2001-03, Vol.290, p.295-298
Main Authors: Muto, S., Yokoya, N., Tanabe, T.
Format: Article
Language:English
Subjects:
Deposit layer
Electron diffraction
Electron energy loss spectroscopy
Graphite belt limiter
TEXTOR
Transmission electron microscopy
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Summary:We examined in detail the structure of the deposit layer on the main graphite belt limiter (ALT-II) in TEXTOR by means of transmission electron microscopy (TEM), electron diffraction, electron energy-loss spectroscopy (EELS) and their combination. The layer consisted mainly of an amorphous carbon matrix and a high density of crystalline boron precipitates. The amorphous carbon matrix was characterized by the stacking of pseudo-two-dimensional graphitic planes parallel to the surface of the limiter block, containing a considerable amount of boron solved. This character of deposit seems very similar to B-doped graphite irradiated by H +.
ISSN:0022-3115
1873-4820
DOI:10.1016/S0022-3115(00)00576-6