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A. F. Novgorodov, F. Bruchertseifer, J. Brockmann, N.A. Lebedev, Frank Rösch

Thermochromatographic separation of no-carrier-added ¹⁸⁶Re or ¹⁸⁸Re from tungsten targets relevant to nuclear medical applications

The thermochromatographic behavior of no-carrier-added rhenium isotopes and macroscopic tungsten was studied at different temperatures as well as in dry and water-vapor containing (moist) atmospheres of oxygen or air. Due to the high thermal volatility of HReO₄, ^186/188Re can easily be separated from tungsten matrices in yields of 65&plusm;15% free from tungsten in less than one hour and in minimum volumes of various solutions. After double neutron capture by ¹⁸⁶W, this separation process can be applied to construct a ¹⁸⁸W/¹⁸⁸Re generator. In addition, the thermochromatographic separation process might be an option to separate no-carrier-added ¹⁸⁶Re after a ¹⁸⁶W(p,n) or a ¹⁸⁶W(d,2n) reaction at a small cyclotron.

Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Print ISSN: 0033-8230
Volume: 88, 03/2000
Pages: 163

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