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The lower detectable limit of sulfur by fast neutron activation analysis

International Journal of Applied Radiation and Isotopes 27(7): 349-350

The lower detectable limit of sulfur by fast neutron activation analysis

For the purpose of air pollution research, the possibility of fast neutron activation analysis of S was investigated. The only reaction that can be used for this purpose is 34S(n, p)34P. A rabbit system was installed, synchronized with a 150 kV D-T [2H to 3H] neutron generator and an electronic analyzing system. The whole system was operated so that the sample was irradiated for 10 s and the 2.13 MeV .gamma. ray was counted for 10 s. Five samples containing 0.1-0.5 g S were prepared. Each measurement lasted 30 min and the activity was plotted as a function of S weight. The relative error is increased very much when the amount of S is < 0.1 g, the lower detectable limit. Collection of > 0.1 g of S even during a long collection time means a very high SO2 concentration in the air.

Accession: 006712285

PMID: 955738

DOI: 10.1016/0020-708x(76)90086-7

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