A high-throughput assembly of beam-shaping channel-cut
monochromators for laboratory high-resolution X-ray distraction
and small-angle X-ray scattering experiments

J 2021

A high-throughput assembly of beam-shaping channel-cut monochromators for laboratory high-resolution X-ray distraction and small-angle X-ray scattering experiments

NADAZDY, Peter, Jakub HAGARA, Petr MIKULÍK, Zdenko ZAPRAZNY, Dusan KORYTAR et. al.

Základní údaje

Originální název

A high-throughput assembly of beam-shaping channel-cut monochromators for laboratory high-resolution X-ray distraction and small-angle X-ray scattering experiments

Autoři

NADAZDY, Peter (garant), Jakub HAGARA, Petr MIKULÍK (203 Česká republika, domácí), Zdenko ZAPRAZNY, Dusan KORYTAR, Eva MAJKOVA, Matej JERGEL a Peter SIFFALOVIC

Vydání

Journal of Applied Crystallography, Chester, International Union of Crystallography, 2021, 0021-8898

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.304 v roce 2020

Kód RIV

RIV/00216224:14310/21:00121925

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1107/S1600576721002338

UT WoS

000659339200002

Klíčová slova anglicky

X-ray beam collimation; channel-cut monochromators; ray-tracing simulations

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 16. 8. 2021 10:38, Mgr. Marie Šípková, DiS.

Anotace

V originále

A four-bounce monochromator assembly composed of Ge(111) and Ge(220) monolithic channel-cut monochromators with V-shaped channels in a quasidispersive configuration is presented. The assembly provides an optimal design in terms of the highest transmittance and photon flux density per detector pixel while maintaining high beam collimation. A monochromator assembly optimized for the highest recorded intensity per detector pixel of a linear detector placed 2.5 m behind the assembly was realized and tested by high-resolution X-ray diffraction and small-angle X-ray scattering measurements using a microfocus X-ray source. Conventional symmetric and asymmetric Ge(220) Bartels monochromators were similarly tested and the results were compared. The new assembly provides a transmittance that is an order of magnitude higher and 2.5 times higher than those provided by the symmetric and asymmetric Bartels monochromators, respectively, while the output beam divergence is twice that of the asymmetric Bartels monochromator. These results demonstrate the advantage of the proposed monochromator assembly in cases where the resolution can be partially sacrificed in favour of higher transmittance while still maintaining high beam collimation. Weakly scattering samples such as nanostructures are an example. A general advantage of the new monochromator is a significant reduction in the exposure time required to collect usable experimental data. A comparison of the theoretical and experimental results also reveals the current limitations of the technology of polishing hard-to-reach surfaces in X-ray crystal optics.

Citovat

NADAZDY, Peter, Jakub HAGARA, Petr MIKULÍK, Zdenko ZAPRAZNY, Dusan KORYTAR, Eva MAJKOVA, Matej JERGEL a Peter SIFFALOVIC. A high-throughput assembly of beam-shaping channel-cut monochromators for laboratory high-resolution X-ray distraction and small-angle X-ray scattering experiments. Journal of Applied Crystallography. Chester: International Union of Crystallography, 2021, roč. 54, June, s. 730-738. ISSN 0021-8898. Dostupné z: https://dx.doi.org/10.1107/S1600576721002338.

@article{1782142,
   author = {Nadazdy, Peter and Hagara, Jakub and Mikulík, Petr and Zaprazny, Zdenko and Korytar, Dusan and Majkova, Eva and Jergel, Matej and Siffalovic, Peter},
   article_location = {Chester},
   article_number = {June},
   doi = {http://dx.doi.org/10.1107/S1600576721002338},
   keywords = {X-ray beam collimation; channel-cut monochromators; ray-tracing simulations},
   language = {eng},
   issn = {0021-8898},
   journal = {Journal of Applied Crystallography},
   title = {A high-throughput assembly of beam-shaping channel-cut monochromators for laboratory high-resolution X-ray distraction and small-angle X-ray scattering experiments},
   url = {https://doi.org/10.1107/S1600576721002338},
   volume = {54},
   year = {2021}
}

TY  - JOUR
ID  - 1782142
AU  - Nadazdy, Peter - Hagara, Jakub - Mikulík, Petr - Zaprazny, Zdenko - Korytar, Dusan - Majkova, Eva - Jergel, Matej - Siffalovic, Peter
PY  - 2021
TI  - A high-throughput assembly of beam-shaping channel-cut monochromators for laboratory high-resolution X-ray distraction and small-angle X-ray scattering experiments
JF  - Journal of Applied Crystallography
VL  - 54
IS  - June
SP  - 730-738
EP  - 730-738
PB  - International Union of Crystallography
SN  - 00218898
KW  - X-ray beam collimation
KW  - channel-cut monochromators
KW  - ray-tracing simulations
UR  - https://doi.org/10.1107/S1600576721002338
N2  - A four-bounce monochromator assembly composed of Ge(111) and Ge(220) monolithic channel-cut monochromators with V-shaped channels in a quasidispersive configuration is presented. The assembly provides an optimal design in terms of the highest transmittance and photon flux density per detector pixel while maintaining high beam collimation. A monochromator assembly optimized for the highest recorded intensity per detector pixel of a linear detector placed 2.5 m behind the assembly was realized and tested by high-resolution X-ray diffraction and small-angle X-ray scattering measurements using a microfocus X-ray source. Conventional symmetric and asymmetric Ge(220) Bartels monochromators were similarly tested and the results were compared. The new assembly provides a transmittance that is an order of magnitude higher and 2.5 times higher than those provided by the symmetric and asymmetric Bartels monochromators, respectively, while the output beam divergence is twice that of the asymmetric Bartels monochromator. These results demonstrate the advantage of the proposed monochromator assembly in cases where the resolution can be partially sacrificed in favour of higher transmittance while still maintaining high beam collimation. Weakly scattering samples such as nanostructures are an example. A general advantage of the new monochromator is a significant reduction in the exposure time required to collect usable experimental data. A comparison of the theoretical and experimental results also reveals the current limitations of the technology of polishing hard-to-reach surfaces in X-ray crystal optics.
ER  -

NADAZDY, Peter, Jakub HAGARA, Petr MIKULÍK, Zdenko ZAPRAZNY, Dusan KORYTAR, Eva MAJKOVA, Matej JERGEL a Peter SIFFALOVIC. A high-throughput assembly of beam-shaping channel-cut monochromators for laboratory high-resolution X-ray distraction and small-angle X-ray scattering experiments. \textit{Journal of Applied Crystallography}. Chester: International Union of Crystallography, 2021, roč.~54, June, s.~730-738. ISSN~0021-8898. Dostupné z: https://dx.doi.org/10.1107/S1600576721002338.

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