C-13 labeled methane and rhenium–boron coated plates were used at the JET tokamak as tracers for studies of the material transport, its erosion and re-deposition. Experimental procedures are described. The results are discussed in terms of processes underlying the material transport and the change of morphology of targets exposed to the plasma: physical sputtering, chemical erosion, prompt re-deposition. The influence of wall materials on fuel inventory is also addressed. C-14 measurements in the TEXTOR tokamak are presented and possibilities of using 14C in carbon migration studies are considered.
- JET tokamak
- tracer techniques
Rubel, M. J., Coad, J. P., Stenström, K., Wienhold, P., Likonen, J., Matthews, G. F., & Philipps, V. (2004). Overview of tracer techniques in studies of material erosion, re-deposition and fuel inventory in tokamaks. Journal of Nuclear Materials, 329 - 333(Part A), 795 - 799. https://doi.org/10.1016/j.jnucmat.2004.04.154