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The hyperfine structure of mercury extracted from neutron irradiated gold Bedford, Ronald Ernest

Abstract

The hyperfine structure of mercury extracted from neutron irradiated gold has been investigated with the aid of a Fabry-Perot etalon. The theory and design of the interferometer are discussed in detail. The wavelengths of sixteen lines in the spectrum of Hg¹⁹⁸, and the hyperfine structure of many lines in the spectrum of Hg¹⁹⁹ have been evaluated and compared with former determinations, The ratio of Hg¹⁹⁹ to Hg¹⁹⁸ produced during the neutron bombardment of gold has been determined from intensity measurements of the hyperfine structure patterns. The result yields a value of (1.78± 0.10) X 10⁴ barns for the neutron capture cross section of Au¹⁹⁸ .

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