Europium-155 in Debris from Nuclear Weapons

Asker Aarkrog, Jørgen Emil Lippert

    Research output: Contribution to journalJournal articleResearchpeer-review


    The lithium-drifted germanium detector enables determination of europium-155 on a routine basis in environmental samples contaminated with debris from nuclear weapons. From measurements of europium-155, cesium-144, and strontium-90 in air filters collected between 1961 and 1966, the yield of europium-155 from weapons was estimated at 1400 atoms per 10$^{6}$ fissions, which is close to the yield of europium-155 from fast fission of uranium-238.
    Original languageEnglish
    Issue number3787
    Pages (from-to)425-427
    Publication statusPublished - 1967


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