Towards high-quality nitrogen-doped diamond single crystals for X-ray optics

Sergey Shevyrtalov, Alexander Barannikov, Yurii Palyanov, Alexander Khokhryakov, Yurii Borzdov, Ilya Sergueev, Sergey Rashchenko, Anatoly Snigirev

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In this manuscript, characterization of single-crystalline (111) plates prepared from type-Ib diamonds with a nitrogen content of 100-150 ppm by means of high-resolution rocking-curve imaging (RCI) is reported. Contrary to common opinion regarding the intrinsically poor diffraction quality of type-I diamonds, RCI showed the presence of nearly defect-free areas of several millimetres squared in the central part of the diamond plates. The observed broadening of the rocking curves is a result of the cutting and polishing processes, causing strains around the edges of the plates and rare defects. An improvement of the preparation technique will thus allow single-crystalline diamond plates to be made for Laue and Bragg monochromators and beam splitters from type-Ib material with areas large enough to be used as optical elements at fourth-generation synchrotron facilities.

Original languageEnglish
Pages (from-to)104-110
Number of pages7
JournalJournal of Synchrotron Radiation
Volume28
DOIs
Publication statusPublished - 1 Jan 2021

Keywords

  • diamond single crystal
  • rocking curve imaging
  • X-ray optics

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