K-shell fluorescent yields for multiply-ionized neon

The use of small accelerators for the production of Auger electrons and x-rays from heavy ion collisions with neon is discussed. High resolution measurements of both K x-rays and K Auger electrons are used to deduce the fluorescent yields for neon singly ionized in the K shell and multiply ionized (ith degree) in the L shell. As an example, the fluorescence yields of 0+5 bombardment are found to be anti ω/sub i/ (x 100) = 1.6, 1.7, 1.9, 2.3, 3.9, 7.5 and 23.0 for i = 0 → 6 respectively. The ω/sub i/ for high charge states are found to be approximately 2 times larger than that theoretically predicted. Recent improved theoretical calculations which assume a statistical distribution of the possible multiplet states for a given L shell vacancy appear to resolve the discrepancy