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Preparation of a118Te/118Sb radionuclide generator

  • Radiochemical and Radioanalytical Techniques
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Abstract

The development of a new radionuclide generator, based on118Te/118Sb, has been studied. The 3.5 minute118Sb daughter activity decays principally by positron emission and has potential use as a flow tracer. The118Te parent is conveniently produced by proton bombardment of antimony targets. A simple and efficient scheme for the separation of radiotellurium from proton-irradiated antimony targets has been developed, and thin-target cross sections for121Sb(p, 4n)118Te and competing reactions have been determined. For antimony targets irradiated with 46 MeV protons, the yields (mCi/g μAh) of118Te,119mTe and119Te were measured to be 0.71, 0.33 and 1.9, respectively. The adsorption and elution characteristics of activated carbon for tellurium have been evaluated for use as a column chromatography adsorbent in a118Te/118Sb generator. The conditions for optimal118Sb elution and minimal118Te breakthrough for promising systems are presented.

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Authors and Affiliations

  1. Department of Chemistry, California State University, Northridge, 91330, Northridge, CA, (USA)

    D. A. Miller, S. Sun & J. H. Yi

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  1. D. A. Miller
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  2. S. Sun
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  3. J. H. Yi
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Miller, D.A., Sun, S. & Yi, J.H. Preparation of a118Te/118Sb radionuclide generator. Journal of Radioanalytical and Nuclear Chemistry, Articles 160, 467–476 (1992). https://doi.org/10.1007/BF02037122

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  • DOI: https://doi.org/10.1007/BF02037122

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