TY - JOUR

T1 - Towards high-quality nitrogen-doped diamond single crystals for X-ray optics

AU - Shevyrtalov, Sergey

AU - Barannikov, Alexander

AU - Palyanov, Yurii

AU - Khokhryakov, Alexander

AU - Borzdov, Yurii

AU - Sergueev, Ilya

AU - Rashchenko, Sergey

AU - Snigirev, Anatoly

N1 - Funding Information: This research was funded by RFBR (project No. 19-29-12040) and the Ministry of Science and Higher Education of the Russian Foundation on state assignment of IGM SB RAS. Publisher Copyright: © 2021 International Union of Crystallography. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/1/1

Y1 - 2021/1/1

N2 - 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.

AB - 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.

KW - diamond single crystal

KW - rocking curve imaging

KW - X-ray optics

UR - http://www.scopus.com/inward/record.url?scp=85099429199&partnerID=8YFLogxK

U2 - 10.1107/S1600577520014538

DO - 10.1107/S1600577520014538

M3 - Article

C2 - 33399558

AN - SCOPUS:85099429199

VL - 28

SP - 104

EP - 110

JO - Journal of Synchrotron Radiation

JF - Journal of Synchrotron Radiation

SN - 0909-0495

ER -