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Pré-Publication, Document De Travail Année : 2012

A vacuum double-crystal spectrometer for reference-free highly charged ions X-ray spectroscopy

Résumé

We have built a vacuum double crystal spectrometer, which coupled to an electron-cyclotron resonance ion source, allows to measure low-energy x-ray transitions in highly-charged ions with accuracies of the order of a few parts per million. We describe in detail the instrument and its performances. Furthermore, we present a few spectra of transitions in Ar$^{14+}$ , Ar$^{15+}$ and Ar$^{16+}$. We have developed an \emph{ab initio} simulation code that allows us to obtain accurate line profiles. It can reproduce experimental spectra with unprecedented accuracy. The quality of the profiles allows the direct determination of line width.
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Dates et versions

hal-00699189 , version 1 (19-05-2012)
hal-00699189 , version 2 (21-10-2012)

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P. Amaro, C.I. Szabo, S. Schlesser, Alexandre Gumberidze, Ernest G. Kessler Jr, et al.. A vacuum double-crystal spectrometer for reference-free highly charged ions X-ray spectroscopy. 2012. ⟨hal-00699189v2⟩
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