Microwave-assisted solidification of free-falling radioactive droplets

E. Bonek, G. Magerl, K. Knotik, P. Leichter

    Research output: Contribution to journalArticle


    We report on the design and on the operation of a 14-GHz microwave system which heats droplets (2 to 4 mm diameter) of aqueous radioactive mixtures from 5 deg C to 100 deg C within 0.25 s during free fall. Additional, untreated free fall of 1 s turns the droplets to homogenous, spherical particles of uniform size which are used in the production of high- temperature-reactor nuclear fuel. A square cross-section Hsub(10p) cavity, positioned vertically, with optimized dimensions is fed with 90 W CW power and serves as an applicator. The problem of non-uniform heating of high-loss spherical droplets is treated in depth. (Author) CS
    Original languageEnglish
    Pages (from-to)222-228
    Number of pages7
    JournalArch. Elektron. Übertragungstech.(1983)
    Publication statusPublished - 1983

    Research Field

    • Not defined


    • FZS-000CHP


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