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

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 نشر من قبل Paul Indelicato
 تاريخ النشر 2012
  مجال البحث فيزياء
والبحث باللغة English
 تأليف P. Amaro




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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 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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