KX-ray Spectra of Sodium Excited by Heavy Charged Particles

Abstract

The K X-ray spectra of sodium metal and several of its compounds, excited by 5.5 MeV He, 22 MeV C, 48 MeV Mg, and 80 MeV Ar ions have been measured with a curved crystal spectrometer. The energies of the Ka satellite and hypersatellite peaks were determined and their intensity distributions examined. A series of Kp hypersatellite peaks was observed with AI ions, thereby indicating that the transfer of electrons into levels having n > 2 from neighboring anions prior to K X-ray emission occurs for highly ionized Na. In addition, L-vacancy transfer was found to be highly probable, but chemical effects on this process appear to be absent.

K x-ray satellite spectrum of Al by photon excitation

“…In the absence of any such L-holes the diagram line KL 0 is produced. K x-ray satellites have been studied by ion [1], electron [2] and photon [3] excitation. With the photon-excitation technique, satellites up to only the second order can be studied.…”

Double K-shell vacancy production in Ca, Ti, V and Cr bombarded by protons

“…Since the first observation of K hypersatellites resulting from the de-excitation of the double K vacancies produced in ion-atom collisions (Richard et al 1972), many similar experiments have been performed. Heavy ions were commonly used as projectiles (Olsen and Moore 1974, Awaya et a1 1980, Watson et al 1983, 1985, Ootuka et al 1984, and less frequently protons (Kawatsura et a1 1977, Cindro et a1 1984. Also, an enhancement in double K-vacancy production for incident bare ions over that for ions with one or more electrons in heavy, near-symmetric collisions has been observed (Woods et al , Hall et al 1981al , 1982.…”

A study of KαL1 X‐ray satellite spectrum of the elements 27 ≤ Z ≤ 31 by photon excitation

“… Just to cite an example, KL 1 satellite relative intensity of Ca was measured in our laboratory, which was found to be nearly three and half times lower than that reported by McWherter et al who generated the satellites by proton excitation. In fact, the relative intensity of the X‐ray satellites is found to vary with the charge and energy of the ions …”