Rocking Curve Measurement for Deformed Crystals Using an Adaptive X-Ray Optical Bending Monochromator

Eliovich, I. A.; Akkuratov, V. I.; Targonskii, A. V.; Благов, А. Е.

doi:10.1134/s1063774518050097

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…Descriptions of the fastening design, functional characteristics and features of the piezoactuator usage in X-ray diffraction experiments are given elsewhere (Blagov et al, 2016(Blagov et al, , 2017Kulikov et al, 2019;Marchenkov et al, 2019). It was also used as a fasttunable adaptive element for in situ study of the external mechanical stress in crystals by X-ray diffraction in the experiment with time resolution (Eliovich et al, 2018).…”

Section: Sample and Methods Of Angular Measurementmentioning

confidence: 99%

“…At that time, however, another problem remained, namely that the angle step in the standard experimental scheme is equal to 0.0002 = 3.49 mrad, which does not allow theoretical DRCs to be recorded, especially for high orders of reflection, with sufficient accuracy. This problem was solved by using a new method of DRC detection based on an adaptive piezoactuator (Bykov et al, 2014;Blagov et al, 2016Blagov et al, , 2017Eliovich et al, 2018;Marchenkov et al, 2019), which allows the DRCs to be recorded in increments of 0.01 mrad or less. In this work, a new experimental scheme is used to study SR diffraction in a single crystal of paratellurite (TeO 2 ).…”

Section: Introductionmentioning

confidence: 99%

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Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Kohn

Kulikov

Prosekov

et al. 2020

J Synchrotron Radiat

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First results are presented for synchrotron radiation diffraction in a paratellurite (TeO2) single crystal investigated with a new experimental scheme consisting of a standard monochromator and a relatively narrow slit for collimation and monochromatization of an incident beam. The Bragg case reflection geometry is used. The monochromator, a pair of Si crystals, maintains the initial direction of the beam propagation. The theory is developed for a precise description of the instrumental function in such a scheme. A new rocking curve registration technique with use of an adaptive bending piezoactuator is applied for the first time with the aim to record the narrow diffraction peaks with high accuracy. A sample is attached to one edge of the bidomain lithium niobate single crystal piezoactuator used. The piezoactuator is bent under the influence of an electric field and it changes the angular position of the sample with a very small step. The experimental curves are compared with the calculated diffraction rocking curves of a perfect paratellurite crystal, both the theoretical one and the one calculated taking into account the instrumental function. An instrumental function account allows a complete coincidence of the simulated curves with the experimental results to be obtained if the experimental curve does not coincide with the theoretical rocking curve. A small discrepancy between the theory and the experimental data has been discovered in cases where the incident beam is sufficiently collimated and monochromated. This indicates the presence of a certain number of lattice defects in the sample under study.

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Section: Sample and Methods Of Angular Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Kohn

Kulikov

Prosekov

et al. 2020

J Synchrotron Radiat

Self Cite

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show abstract

“…If the ABXO is installed as a monochromator and the X-ray source generates a diverging radiation beam like an X-ray tube (Section 3.1, Fig. 2), the beam is not blocked by the collimation slit (Eliovich et al, 2018).…”

Section: Adaptive X-ray Optics In Double-crystal and Triple-crystal Diffractometrymentioning

confidence: 99%

“…At a second-generation synchrotron, a rocking curve was recorded with a temporal resolution of 108 ms (Marchenkov et al, 2019). The rocking curve acquisition time achieved in transmission geometry with an X-ray tube was 1.5 s (Eliovich et al, 2018). For an RSM collected with the combination of a single ABXO element (in the position of monochromator or analyzer) and stepper motor, the acquisition time is about 5 min (Eliovich et al, 2020).…”

Section: Adaptive X-ray Optics and Time-resolved Studiesmentioning

confidence: 99%

“…An adaptive bending X-ray optics element (ABXO) (Blagov et al, 2016;Eliovich et al, 2018) based on a monolithic bimorph LiNbO 3 piezo actuator is free of this drawback. In these actuators, a structure of two domains with equal thickness and opposite electric polarization vectors is realized in the same piezoelectric single crystal by specialized annealing technology (Nakamura & Shimizu, 1989;Bykov et al, 2014;Malinkovich et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

Akkuratov¹,

Благов²,

Eliovich³

et al. 2022

J Appl Cryst

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A novel laboratory diffractometer for time-resolved high-resolution X-ray diffraction studies of reversible and irreversible processes in crystalline materials under uniaxial compression and vibration is described. Temporal resolution up to milliseconds for double-crystal and up to tens of seconds for triple-crystal diffraction experiments was achieved with a single adaptive bending X-ray optics element. Design solutions and techniques for applying and controlling uniaxial compression and vibration for in situ time-resolved studies are described. Results are presented for various static and dynamic load experiments, controlled by a system based on the TANGO Controls framework. Rocking curves of paratellurite (TeO2) under quasi-static compression and lithium fluoride (LiF) under ultrasonic vibration were measured with temporal resolution. Reciprocal-space maps of LiF under static compression and quartz (SiO2) under ultrasonic vibration were collected.

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Rapid non-mechanical reciprocal space mapping using LiNbO3-based bimorph piezoactuator

Eliovich¹,

Akkuratov²,

Targonskii³

et al. 2022

Sensors and Actuators A: Physical

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Rocking Curve Measurement for Deformed Crystals Using an Adaptive X-Ray Optical Bending Monochromator

Cited by 13 publications

References 11 publications

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Synchrotron radiation diffraction in a single crystal of paratellurite investigated with a new experimental scheme

Laboratory time-resolved X-ray diffractometry for in situ studies of crystalline materials under uniaxial compression and vibration

Rapid non-mechanical reciprocal space mapping using LiNbO3-based bimorph piezoactuator

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