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Figure 8
Autoionization spectrum of Ne (total ion yield) recorded between the two 2p−1 thresholds with a 5 µm entrance slit/10 µm exit slit (30 µeV steps, 2 s per point) and 4300 lines mm−1 grating. The insert shows a blow-up of the 18s resonance and an instrumental Gaussian fit showing a 174 µeV linewidth (resolving power 124000). Note that the 13s resonance appears here in the ionization continuum because of the DC Starck shift induced by the rather high electric field applied to repel ions, lowering the ionization threshold.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 19| Part 4| May 2012| Pages 508-520
doi:10.1107/S0909049512010588
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