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Comments
Beam quality: The beam current was limited to about 15-30 nA, depending on bombarding energy. Target: Targets of metallic lithium were produced by evaporating 7Li (99.7% enrichment) onto carbon backings. Thin targets of typically 20 mkg/cm27Li on carbon backings of 5 mkg/cm2 were used. Data obtained: author's graph digitizedThe experiment was carried out at the Dynamitron-Tandem Laboratorium at Ruhr-Universitat Bochum.