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@ARTICLE{Asadchikov:807736,
author = {Asadchikov, Victor E. and Butashin, Andrey V. and Buzmakov,
Alexey V. and Deryabin, Alexander N. and Kanevsky, Vladimir
M. and Prokhorov, Igor A. and Roshchin, Boris S. and Volkov,
Yuri O. and Zolotov, Denis A. and Jafari, Atefeh and
Alexeev, Pavel and Cecilia, Angelica and Baumbach, Tilo and
Bessas, Dimitrios and Danilewsky, Andreas N. and Sergueev,
Ilya and Wille, Hans-Christian and Hermann, Raphael},
title = {{S}ingle-crystal sapphire microstructure for
high-resolution synchrotron {X}-ray monochromators},
journal = {Crystal research and technology},
volume = {51},
number = {4},
issn = {0232-1300},
address = {Weinheim},
publisher = {Wiley-VCH},
reportid = {FZJ-2016-02154},
pages = {290–298},
year = {2016},
abstract = {We report on the growth and characterization of sapphire
single crystals for X-ray optics applications. Structural
defects were studied by means of laboratory double-crystal
X-ray diffractometry and white-beam synchrotron-radiation
topography. The investigations confirmed that the main
defect types are dislocations. The best quality crystal was
grown using the Kyropoulos technique. Therein the
dislocation density was 102–103 cm−2 and a small area
with approximately 2*2 mm2 did not show dislocation contrast
in many reflections. This crystal has suitable quality for
application as a backscattering monochromator. A clear
correlation between growth rate and dislocation density is
observed, though growth rate is not the only parameter
impacting the quality.},
cin = {JCNS-2 / PGI-4 / JARA-FIT},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {144 - Controlling Collective States (POF3-144) / 524 -
Controlling Collective States (POF3-524) / 6212 - Quantum
Condensed Matter: Magnetism, Superconductivity (POF3-621) /
6213 - Materials and Processes for Energy and Transport
Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
G:(DE-HGF)POF3-6G4},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000374323000005},
doi = {10.1002/crat.201500343},
url = {https://juser.fz-juelich.de/record/807736},
}