Full-field transmission x-ray imaging with confocal polycapillary x-ray optics

Sun, Tao; MacDonald, Carolyn A.

doi:10.1063/1.4789799

Cited by 31 publications

(9 citation statements)

References 19 publications

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“…This makes them especially useful in laboratory-based experiments using X-ray tubes 14 . Nevertheless, the size of the focal spot limits the resolution not only of scanning methods but also of X-ray absorption 15 16 and phase-contrast imaging 17 18 using polycapillary optics, in which the focal spot acts as a secondary X-ray source.…”

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confidence: 99%

Grid-enhanced X-ray coded aperture microscopy with polycapillary optics

Sowa

Korecki

2017

Sci Rep

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Polycapillary devices focus X-rays by means of multiple reflections of X-rays in arrays of bent glass capillaries. The size of the focal spot (typically 10–100 μm) limits the resolution of scanning, absorption and phase-contrast X-ray imaging using these devices. At the expense of a moderate resolution, polycapillary elements provide high intensity and are frequently used for X-ray micro-imaging with both synchrotrons and X-ray tubes. Recent studies have shown that the internal microstructure of such an optics can be used as a coded aperture that encodes high-resolution information about objects located inside the focal spot. However, further improvements to this variant of X-ray microscopy will require the challenging fabrication of tailored devices with a well-defined capillary microstructure. Here, we show that submicron coded aperture microscopy can be realized using a periodic grid that is placed at the output surface of a polycapillary optics. Grid-enhanced X-ray coded aperture microscopy with polycapillary optics does not rely on the specific microstructure of the optics but rather takes advantage only of its focusing properties. Hence, submicron X-ray imaging can be realized with standard polycapillary devices and existing set-ups for micro X-ray fluorescence spectroscopy.

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confidence: 99%

Grid-enhanced X-ray coded aperture microscopy with polycapillary optics

Sowa

Korecki

2017

Sci Rep

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“…In recent years, the confocal technology based on CXRO has become popular and widely used in confocal X-ray fluorescence (XRF) , Nakazawa and Tsuji 2013a,b, Peng et al 2014a, confocal X-ray absorption fine structure (XAFS) (Lühl et al 2012, Menzel et al 2013, confocal XRD (Sosa et al 2014), confocal small-angle X-ray scattering (SAXS) , confocal X-ray imaging (Yin et al 2006, Sun andMacDonald 2013), and confocal X-ray scattering (Li et al 2015a).…”

Section: Introductionmentioning

confidence: 98%

Confocal X-ray technology based on capillary X-ray optics

Sun¹,

Ding²

2015

Reviews in Analytical Chemistry

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Capillary X-ray optics is versatile, and it can be used with synchrotron radiation source, conventional X-ray source, laser-plasma ultrafast X-ray source, and so forth. Recently, the confocal X-ray technology based on capillary X-ray optics has become popular, and it has been widely used in X-ray fluorescence, X-ray absorption fine structure, X-ray diffraction, small-angle X-ray scattering, X-ray imaging, and X-ray scattering. This confocal X-ray technology has applications in many fields, including environmental monitoring, food science, life science, chemistry, physics, nanomaterials, nondestructive test, security check, and so on.

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“…The confocal technology based on polycapillary X-ray optics was firstly proposed in the early 1990s by Gibson and Kumakhov (Gibson & Kumakhov, 1992), and it has been widely used in 3D micro X-ray fluorescence (Nakazawa & Tsuji, 2013;Peng, Liu, Sun, Ma, & Ding, 2014), 3D micro X-ray absorption fine structure (Lühl, Mantouvalou, Schaumann, Vogt, & Kanngießer, 2013), 3D Xray diffraction , small-angle X-ray scattering and full-field transmission X-ray imaging technologies (Sun & MacDonald, 2013). To our knowledge, there is no literature of using the confocal technology based on polycapillary X-ray lens to discriminate FBs in FPs consisting of low density materials with low-Z elements.…”

Section: Introductionmentioning

confidence: 99%