Thermal neutron activation analysis of hafnium in zircaloy with a Van de Graaff accelerator |
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Authors: | A Hirose H Wada K Kobayashi D Ishii |
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Institution: | (1) Department of Applied Chemistry, Faculty of Engineering, Nagoya University, Furocho, Chikusa-ku, Nagoya, (Japan) |
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Abstract: | Thermal neutron activation analysis of hafnium in zircaloy was investigated with a Van de Graaff accelerator. Thermal neutrons
were obtained by moderating Be−D fast neutrons with paraffin blocks.179mHf isotope with a half-life of 18.6 s, produced by178Hf(n, γ)179mHf reaction, was utilized in the present analysis. This method made it possible to analyze hafnium rapidly and non-destructively
by using scandium as an internal standard material. Several tens to hundreds of ppm of hafnium in zircaloy samples were determined
within 2 minutes with a precision of about ±1%. |
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