Rapid Non-destructive Analysis for Gold in Copper-Gold Mixtures by Neutron Activation


IT is known that 7.3-see gold-197m is formed by neutron irradiation of natural gold and that it emits 0.279-MeV γ-ray. A preliminary experiment was made by Anders1 using neutrons at a flux of 2 × 108 n/cm2/sec, where only relatively few counts of γ-rays were collected for samples containing 15 mg of gold.

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  1. 1

    Anders, O. U., Anal. Chem., 33, 1706 (1961).

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  2. 2

    Okada, M., Nippon Kagaku Zasshi, 83, 85 (1962).

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  3. 3

    Okada, M., Intern. J. App. Rad. and Isotopes, 13, 53 (1962).

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OKADA, M., KAMEMOTO, Y. Rapid Non-destructive Analysis for Gold in Copper-Gold Mixtures by Neutron Activation. Nature 197, 278–279 (1963). https://doi.org/10.1038/197278b0

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