X-ray Phase Contrast Imaging Technique Using Bilens Interferometer.

Zverev, D.; Kohn, V. G.; Кузнецов, С. П.; Yunkin, V.; Snigirev, A.

doi:10.1017/s1431927618013193

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…Kalasova asked to reduce the number of steps, so that only the images obtained from a part of the work intersected with the data of the important work obtained by the intervention, which also achieved the purpose of reducing the exposure time [10]. Zverev devised a method for acquiring interlaced grating phase-similar CT data that enables the data to be obtained similar to the process of grating phase-comparison CT for conventional CT imaging, speeding up the imaging process and reducing radiation dose [11].…”

Section: Literature Reviewmentioning

confidence: 99%

[Retracted] Study on the Cytotoxic Microstructure of Titanium Dioxide Nanoparticles by X‐Ray Phase‐Contrast CT Imaging

Fei

Nie

Zhang

et al. 2022

Contrast Media & Molecular Imaging

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To address the problem of microstructural analysis of titania nanoparticles with high cytotoxicity, the authors propose X-ray phase-comparative CT imaging studies. In this method, the HE-stained section samples were compared with the X-ray phase-contrast CT imaging microscopic images, and 3D texture analysis was used to observe the changes in the preparation of hepatocyte microstructures in the two groups. The results show that X-ray phase-contrast CT imaging microscopic images and their larger image size are closely related to HE staining images, and X-ray phase-contrast CT microscopic images can observe important data of hepatocytes from multiple angles. The ship skeleton extraction method based on the endpoint limit also has advantages over traditional algorithms in extraction accuracy and can provide more 3D feature files, confirming the growth and transformation of normal hepatocytes into hepatocyte cytotoxic microstructures. The distribution effect of using the ensemble process is better than the simple 2D feature set and 3D feature set, and the overall accuracy is improved; the result distribution of the tree determination and random forest methods is also better than that of the support vector machine method. The experimental results show that the X-ray phase-contrast CT images can highlight the 2D and 3D imaging features of the hepatotoxic microstructure of TiO2 nanoparticles and provide data for quantitative analysis.

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Section: Literature Reviewmentioning

confidence: 99%

[Retracted] Study on the Cytotoxic Microstructure of Titanium Dioxide Nanoparticles by X‐Ray Phase‐Contrast CT Imaging

Fei

Nie

Zhang

et al. 2022

Contrast Media & Molecular Imaging

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“…condensers , collimators (Baron et al, 1999;Chumakov et al, 2000), beam-shapers (Zverev et al, 2017) and higherharmonic suppressors (Polikarpov et al, 2014). Currently, CRLs are extensively used in X-ray imaging and microscopy (Byelov et al, 2013;Zverev et al, 2017Zverev et al, , 2018, interferometry (Snigirev, Snigireva, Kohn et al, 2009;Snigirev et al, 2014;Zverev et al, 2018) and spectroscopy (Santoro et al, 2014). Use of refractive optics allows us to track dynamical and structural transformations, which is especially important in studies of materials under extreme conditions (Dubrovinskaia et al, 2016) and in high-resolution X-ray diffraction experiments (Drakopoulos et al, 2005;Ershov et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

CRL-based ultra-compact transfocator for X-ray focusing and microscopy

Narikovich

Polikarpov

Barannikov

et al. 2019

J Synchrotron Radiat

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A new ultra‐compact transfocator (UCTF) based on X‐ray compound refractive lenses (CRLs) is presented. The device can be used to change the number of one‐ and two‐dimensional focusing CRLs by moving the individual parabolic lenses one‐by‐one independently, thus providing permanent energy and focal‐length tunability for scanning and full‐field X‐ray microscopy applications. The small overall size and light weight of the device allow it to be integrated in any synchrotron beamline, while even simplifying the experimental layout. The UCTF was tested at the Excillium MetalJet microfocus X‐ray source and at the P14 EMBL (PETRA‐III) beamline, demonstrating high mechanical stability and lens positioning repeatability.

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