A comparison of ion emission from NaNO3 produced by keV energy atomic and polyatomic primary ions Academic Article uri icon

abstract

  • Sodium nitrate was bombarded with Cs+, (CsI)Cs+ and (CSI)2Cs+ projectiles in the energy range 10 to 20 keV. Measurements of relative secondary ion yields demonstrate that Cs+ produces a greater abundance of O- and OH- from the surface; the yields of complex secondary ions are higher using the polyatomic projectiles. The yield ratio of NO3/- to NO2/-, indicative of chemical damage induced by the projectile impact, is not sensitive to the kinetic energy of the projectile in the energy range examined, but is instead a function of the number of atoms in the projectile. For surface analysis, this study shows that the most effective polyatomic projectile is one composed of a few constituents.

published proceedings

  • RAPID COMMUNICATIONS IN MASS SPECTROMETRY

author list (cited authors)

  • Van Stipdonk, M. J., Justes, D. R., Santiago, V., & Schweikert, E. A.

citation count

  • 17

complete list of authors

  • Van Stipdonk, MJ||Justes, DR||Santiago, V||Schweikert, EA

publication date

  • November 1998

publisher