M. Legros et al., THE FIRST HIGH-RESOLUTION, BROAD-BAND X-RAY SPECTROSCOPY OF ION-SURFACE INTERACTIONS USING A MICROCALORIMETER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 357(1), 1995, pp. 110-114
A high resolution, broad band X-ray microcalorimeter has been used for
the first time to investigate the radiative deexcitation of highly ch
arged 7 keV/q Ar17+ ions as they interact with a beryllium surface at
normal incidence. The 20 eV energy resolution of this instrument made
it possible to clearly distinguish the argon K-alpha and K-beta,K-gamm
a complex simultaneously. The intensity ratio of the K-beta,K-gamma to
K-alpha emission is 31%, compared to the 8% found in the neutral argo
n atom. There is strong evidence that the relative intensities of the
KL(n) (n = 1-8) transitions do not agree with those obtained with crys
tal spectrometers.