Development of radioactive ion beam purification by selective adsorption at the HRIBF

C. Jost, H. K. Carter, R. E. Goans, B. O. Griffith, R. Katakam, K. L. Kratz, C. A. Reed, E. H. Spejewski, T. Stora, D. W. Stracener

    Research output: Contribution to journalConference articlepeer-review

    3 Scopus citations

    Abstract

    In the past decades many techniques have been developed to reduce isobaric contaminations in ISOL (Isotope Separation On-Line) beams. Another promising method to achieve improved selectivity is employing surface effects in the transfer line between target container and ion source. Thus adsorption materials with suitable atomic structure and polarity can lead to a high chemical selectivity. The principle of selective adsorption has already been employed successfully in the past. Quartz transfer lines are applied on-line at ISOLDE and have been shown to reduce Rb contaminations by 5 orders of magnitude. Since quartz is the only compound that has been tested yet we plan to conduct a broad on-line study of the adsorption behavior of various elements on a range of materials. For testing at the On-Line Test Facility at the Holifield Radioactive Ion Beam Facility (HRIBF) a special target-ion source unit with a variable- temperature transfer line has been constructed in collaboration with the ISOLDE technical group. Based on the design of the ISOLDE prototype unit it was modified to match the unique capabilities of the OLTF. Preliminary results of on-line tests are presented.

    Original languageEnglish
    Pages (from-to)750-753
    Number of pages4
    JournalAIP Conference Proceedings
    Volume1099
    DOIs
    StatePublished - 2009
    Event20th International Conference on the Application of Accelerators in Research and Industry, CAARI 2008 - Fort Worth, TX, United States
    Duration: Aug 10 2008Aug 15 2008

    Keywords

    • Isobaric contamination
    • Selective adsorption
    • Target / Ion source development

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