Energy-tunable transmission x-ray microscope for differential contrast imaging with near 60nm resolution tomography

Yin, Gung‐Chian; Tang, Mau‐Tsu; Song, Yen‐Fang; Chen, Fu‐Rong; Liang, K. S.; Duewer, Frederick; Yun, Wenbing; Ko, Chih‐Yuan; Shieh, Han–Ping D.

doi:10.1063/1.2211300

Cited by 100 publications

(61 citation statements)

References 14 publications

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“…Transmission X-ray microscope with 60 nm tomographic resolution has been installed at beamline BL01B [5,6] of NSRRC in Taiwan with a superconducting wavelength shifter source, which provides a photon flux of 5 x 10 12 photons/s/0.1 % bw in the energy range 5-20 keV. X-rays generated by a wavelength shifter are primarily focused at the charge coupled detector by a toroidal focusing mirror with focal ratio nearly 1:1.…”

Section: Methodsmentioning

confidence: 99%

Transmission X-ray microscopy reveals the clay aggregate discrete structure in aqueous environment

Zbik

Frost

Song

et al. 2008

Journal of Colloid and Interface Science

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The utilisation of new transmission X-ray microscopy (TXM) using the synchrotron photon source enable for the first time the study in three dimensions micro-size clay particles in aggregates in their natural aqueous environment. This technique makes possible remarkable accurate images of nanosize mineral inter-particle structure which forms a new nano-composite. The Birdwood kaolinite/LDH aggregates observed in the TXM are much more compact than observed before in pure Birdwood kaolinite suspension and similar to aggregates formed after treatment by positively charged surfactant. Kaolinite/LDH aggregates in water reveal complex structure of larger kaolinite platelets connected together by gelled nano-particles which are most probably LDH colloidal plates. Comparisons of the transmission electron microscope (TEM) and TXM techniques show similarities in particle morphology. The ability to study particles and aggregates in their natural aqueous environment and in 3-dimensions make this technique superior to the TEM technique.

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Section: Methodsmentioning

confidence: 99%

Transmission X-ray microscopy reveals the clay aggregate discrete structure in aqueous environment

Zbik

Frost

Song

et al. 2008

Journal of Colloid and Interface Science

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“…TXM, which was used in the present study, has been installed on the synchrotron at Taiwan's National Synchrotron Radiation Research Center [10,11]. This TXM provides two-dimensional (2D) imaging and 3D tomography at an energy of 8-11 keV, with a spatial resolution of 50-60 nm and with the Zernike-phase contrast capability to image light material that lacks X-ray absorption contrast.…”

Section: Methodsmentioning

confidence: 99%

Smectite clay microstructural behaviour on the Atterberg limits transition

Zbik

Williams

Song

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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behaviour on the Atterberg limits transition, Colloids and Surfaces A: Physicochemical and Engineering Aspects (2014), http://dx.doi.org/10.1016/j.colsurfa. 2014.11.042 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. aggregates and by encapsulate water within the ultrathin and closed void network, lead to poor sludge dewatering. To better understand the water retention behaviour of smectite-rich clays, a microstructural investigation was conducted on Amcol Australian bentonite in aqueous suspension in near the liquid limit (LL) and the plastic limit (PL). The investigation was conducted with the aid of synchrotron-powered transmission x-ray microscope tomography (TXM), with subsequent computer reconstruction. Images from the microscopy studies were statistically analysed using the STatistical IMage ANalysing (STIMAN) system. The study found that clay particles form a spanned framework in which mineral particles, aggregates and waterfilled voids assemble as hierarchic structural elements. The size of these structural elements was larger in the water suspension and subsequently became smaller as an effect of water loss in the suspension > liquid and > plastic limit conditions. The clay suspension structure was almost isometric, with a low anisotropy coefficient: Kα -9%. This parameter increased to Kα -17% in (LL) and increased further in (PL) conditions to Kα -35%. Voids within structural elements were much smaller than the water filled inter-flock voids, with their median diameter 140 nm (suspension), 120 nm (LL) and 90 nm (PL). Significant differences in Atterberg limits values were observed between powder freshly mixed with water and a seasoned sample. Therefore, careful consideration of the sample mineral composition, clay content and genesis must be given due to preparation for geotechnical examination.

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“…Full-field transmission X-ray microscopy (TXM) using both synchrotron and tabletop X-ray sources has been accomplished at many facilities all over the world (Schneider, 1998;Chao et al, 2005;Yin et al, 2006;Sakdinawat & Liu, 2007;Takman et al, 2007;Chu et al, 2008;de Jonge et al, 2008;Kim et al, 2008;Chen et al, 2008;Andrews et al, 2010;Rehbein et al, 2009). The unique capability of imaging three-dimensional structure with spatial resolution down to a few tens of nanometers (Chao et al, 2005;Schneider et al, 2010; over a field of view of several tens of micrometers has made TXM a well recognized tool for research ranging from materials science (Chen et al, 2008;Li et al, 2009;Nelson et al, 2011) to biological studies (Larabell & Le Gros, 2004;Andrews et al, 2010;Patty et al, 2009;Schneider et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The second, the ability to tune the energy of the incident photons with high resolution, opens the vast field of applications of X-ray absorption spectroscopic (XAS) imaging. XAS imaging applications range from dual-energy (2E) contrast imaging techniques (Yin et al, 2006;Grew et al, 2010), in which images directly below and above the absorption edge of a specific element of interest are recorded, to full-field TXM XANES imaging , in which a stack of images is recorded at different energies, generating an absorption spectrum for each pixel within the field of view. The combination of both imaging speed and energy tunability poses a challenge to data handling and processing, and requires automated instrumental control.…”

Section: Introductionmentioning

confidence: 99%

TXM-Wizard: a program for advanced data collection and evaluation in full-field transmission X-ray microscopy

et al. 2012

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Transmission X-ray microscopy (TXM) has been well recognized as a powerful tool for non-destructive investigation of the three-dimensional inner structure of a sample with spatial resolution down to a few tens of nanometers, especially when combined with synchrotron radiation sources. Recent developments of this technique have presented a need for new tools for both system control and data analysis. Here a software package developed in MATLAB for script command generation and analysis of TXM data is presented. The first toolkit, the script generator, allows automating complex experimental tasks which involve up to several thousand motor movements. The second package was designed to accomplish computationally intense tasks such as data processing of mosaic and mosaic tomography datasets; dual-energy contrast imaging, where data are recorded above and below a specific X-ray absorption edge; and TXM X-ray absorption near-edge structure imaging datasets. Furthermore, analytical and iterative tomography reconstruction algorithms were implemented. The compiled software package is freely available.

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Energy-tunable transmission x-ray microscope for differential contrast imaging with near 60nm resolution tomography

Cited by 100 publications

References 14 publications

Transmission X-ray microscopy reveals the clay aggregate discrete structure in aqueous environment

Transmission X-ray microscopy reveals the clay aggregate discrete structure in aqueous environment

Smectite clay microstructural behaviour on the Atterberg limits transition

TXM-Wizard: a program for advanced data collection and evaluation in full-field transmission X-ray microscopy

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