Accession Number : AD0669851

Title :   DETERMINATION OF THE DEGREE OF IONIZATION OF GAS ATOMS AS A FUNCTION OF X-RAY ENERGY.

Descriptive Note : Final technical rept.,

Corporate Author : VIRGINIA UNIV CHARLOTTESVILLE DIV OF ELECTRICAL ENGINEERING

Personal Author(s) : Whitehead,W. D. , Jr. ; Landes,Hugh S.

Report Date : MAY 1968

Pagination or Media Count : 21

Abstract : Photo-ionization of gases may result in many ions with high charge states if the initial event is the removal of an inner shell electron. This may be followed by radiationless or Auger transitions with the result that a number of electrons are removed from the atom. The relative abundances of the various charge states for Krypton and Xenon were measured as a function of maximum x-ray energy. Measurements were made with a radio frequency quadropole spectrometer and a time of flight spectrometer. A crystal diffraction spectrometer was used to analyze the incident x-ray radiation. The average charge for Krypton ions was found to increase +2.8 at 3 Kev to +4.5 at 20 Kev. The optical spectra of singly ionized nitrogen atoms were obtained by means of a 1 Mev Van de Graaff accelerator beam which was excited during its passage through thin foils. (Author)

Descriptors :   (*GAS IONIZATION, X RAYS), (*PHOTOCHEMICAL REACTIONS, GAS IONIZATION), ATOMIC ENERGY LEVELS, ELECTRON TRANSITIONS, KRYPTON, XENON, MASS SPECTROSCOPY, NITROGEN

Subject Categories : Radiation and Nuclear Chemistry
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE