Abstract
A solid target boronisation has been performed in the Extrap T2 reversed field pinch. A boron carbide rod was inserted in the edge plasma during hydrogen RFP-discharges. The amount of material released has been measured and the boron carbide film created on the first wall analysed by scanning Auger spectrometry, X-ray photoelectron spectroscopy, and ion beam techniques. The article reports on the effect the boronisation has upon plasma performance, and contains a quantitative discussion on the oxygen reduction due to oxidation of boron.
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