A description is given of the current isotope separations program at Oak Ridge National Laboratory emphasizing new techniques and developments which have demonstrated improvement in isotopic purity, ion output, and process efficiency. Among the topics discussed are the use of tungsten-wire electrodes as a replacement for conventional graphite electrodes; the in-situ use of ClF3as a halogenating agent in the isotopic separation of Ru, Pd, and Os; and the production and enhancement of the radioactive isotopes,41Ca and205Pb, with higher process efficiencies than are normally attained. Developmental activities include the source-slit system modifications for the 255° separators. Brief descriptions are also given of special efforts to achieve higher purity materials such as124Te,122Sn, and184W. The continued use of a 180° sector isotope separator for preparing high isotopically enriched targets for physics research will also be described. © 1976.
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