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- W1557079246 abstract "Abstract : In order to allow quantitative interpretation of the reactions of high energy particles from the 184-inch cyclotron with tantalum and heavier elements, a systematic survey is being made of radioactive isotopes of the rare earth elements and hafnium, tantalum, tungsten, and rhenium. Bombardments of various elements are being made using 38-Mev and 20-Mev helium ions, 19-Mev deuterons, and 10-Mev protons from the 60-inch Crocker Laboratory cyclotron. Chemical separation of the rare earth elements is made by ion-exchange resin columns. The accompanying table summarizes present data; energies of radiations are determined from absorption measurements; positrons are observed using a magnetic counter; mass allocations are made on the basis of measured cross sections." @default.
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- W1557079246 date "1948-08-01" @default.
- W1557079246 modified "2023-09-27" @default.
- W1557079246 title "Some New Radioactive Isotopes" @default.
- W1557079246 hasPublicationYear "1948" @default.
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