Disintegration of the Separated Isotopes of Lithium by Protons and by Heavy Hydrogen

Abstract

THE two known isotopes, Li⁶ and Li⁷, have been separated in quantities of the order of one microgram by two separate methods depending on the passage of several microamperes of lithium ions through electric and magnetic fields. The separate isotopes were collected on metal discs cooled with liquid nitrogen, and after fixation by exposure to hydrochloric acid gas, were bombarded by protons and. by diplons in an apparatus already described¹. It was possible to observe several hundred disintegration particles each minute from the Li⁷ targets and about half that number from the Li⁶ targets arranged to contain about the same number of atoms. The results are summarised in the accompanying table.