Boronization
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Boronization is a wall conditioning technique for fusion machines (such as tokamaks), where a thin film of boron is deposited on the walls of the vacuum vessel in order to reduce the impurity content (for example oxygen) which can be deleterious for fusion plasma operation.[1]
This technique can be seen as a plasma-assisted chemical vapor deposition of boron. The typical workflow involves performing a glow discharge and injecting a gas containing boron into the vacuum vessel chamber.
Boronization as a wall conditioning technique was first developed for the TEXTOR tokamak at the Forschungszentrum Jülich. It is now a well-established technique and has been successfully applied on many machines, examples include DIII-D[2] and ASDEX[3].
See also
[edit]References
[edit]- ^ "Wall conditioning | A coat of boron to capture impurities". ITER. Retrieved 2024-04-13.
- ^ Jackson, G. L.; Winter, J.; Burrell, K. H.; DeBoo, J. C.; Greenfield, C. M.; Groebner, R. J.; Hodapp, T.; Holtrop, K.; Kellman, A. G.; Lee, R.; Lippmann, S. I.; Moyer, R.; Phillips, J.; Taylor, T. S.; Watkins, J. (1992-12-01). "Boronization in DIII-D". Journal of Nuclear Materials. Plasma-Surface Interactions in Controlled Fusion Devices. 196–198: 236–240. doi:10.1016/S0022-3115(06)80038-3. ISSN 0022-3115.
- ^ The ASDEX Team; The ICRH Team; The LH Team; The NI Team; Schneider, U.; Poschenrieder, W.; Bessenrodt-Weberpals, M.; Hofmann, J.; Kallenbach, A.; Krieger, K.; Müller, E.; Niedermeyer, H.; Ryter, F.; Roth, J.; Söldner, F. (1990-12-03). "Boronization of ASDEX". Journal of Nuclear Materials. 176–177: 350–356. doi:10.1016/0022-3115(90)90071-T. ISSN 0022-3115.
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