Abstract
The energy spectra of electrons emitted upon Kr+ ion bombardment from a polycrystalline platinum target and from a crystalline silver target at large ejection angles are examined. If the targets are previously bombarded to a dose of 1 × 1015 ions/cm2 (principal bombardment), an extra structure of the energy spectrum is observed. It is shown that surface microfurrows are created during the principal ion bombardment. The krypton atoms are supposed to be deposited by the ion beam during electron energy measurements and they precipitate in the form of solid bubbles inside the surface microfurrows. During Kr+ ion bombardment (Kr+ + Kr) and (Kr+ + Kr + Kr) quasimolecules can be created. It is assumed that a decay of molecular autoionization states of the two- and three-particle quasimolecules is responsible for the structure of the electron energy spectrum. A relation between autoionization electron emission and the structural state of the surface of solid krypton is found. [Russian Text Ignored].
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