Abstract
A non-destructive activation analytical method developed for the determination of the axial concentration distributions of Al, Si and K residual additives in sintered tungsten rods is briefly described. A 14 MeV neutron generator is used to produce the reactions27Al(n, p)27Mg,28Si(n, p)28Al and39K(n, 2n)38K and the activities are compared with standards. A weighted least-squares fitting program is used for peak area determination of the scintillation spectra. A scheme of the irradiating and measuring arrangement with a pneumatic sample-transfer system is presented. The system is applicable to large-scale routine analysis and lends itself well to automation. The results of preliminary measurements with this arrangement are given.
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Nagy, Á.Z., Csőke, A., Pócs, L. et al. A method for the determination of additive elements in sintered tungsten metal rods by fast neutron activation analysis. J. Radioanal. Chem. 11, 231–240 (1972). https://doi.org/10.1007/BF02514026
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DOI: https://doi.org/10.1007/BF02514026