An activation experiment with 19.5 MeV alpha-particles was made in order to check the niobium and molybdenum impurity concentrations of the Japanese steel F82H-mod. The gamma-spectroscopic analysis yielded a concentration of (2.5 +/- 1.0) wt. ppm niobium and of (46 +/- 17) wt. ppm molybdenum. These values are in good agreement with the manufacturer's data being 1 wt. ppm niobium and 30 wt. ppm molybdenum. (C) 1997 Elsevier Science B.V. [References: 11]
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