Dr. Wenbing Yun Profile

Dr. Wenbing Yun

at Sigray Inc

SPIE Involvement:

Author

Publications (39)

Proceedings Article | 3 October 2023 Presentation + Paper

Developments in an ultra-high-brightness quasi-monochromatic laboratory x-ray source with tender/soft x-ray production

Stuart Coleman, Wenbing Yun, Sylvia Lewis, John Burnett, Emma Litzer

Proceedings Volume 12694, 126940B (2023) https://doi.org/10.1117/12.2676535

KEYWORDS: X-rays, X-ray sources, Anodes, Silver, Calcium, X-ray fluorescence spectroscopy, Synchrotrons, Tin, Chromium, Fluorescence

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Proceedings Article | 22 October 2019 Presentation

Next-generation high-brightness x-ray sources with tunable x-ray spectrum (Conference Presentation)

Wenbing Yun, Bill Hansen, Alan Lyon, Benjamin Stripe, S. H. Lau, Vladimir Semenov

Proceedings Volume 11110, 111100D (2019) https://doi.org/10.1117/12.2530366

KEYWORDS: X-ray sources, X-rays, X-ray optics, Metals, X-ray microscopy, Diamond, X-ray imaging, Detection and tracking algorithms, Sensors, Patents

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Both laboratory and synchrotron-based microanalytical techniques (e.g. microXRF, microXRD, x-ray microscopy, SAXS, etc.) have made substantial advances in the past decades, including improved algorithms and faster, higher sensitivity detectors. However, laboratory performance remains comparatively limited in performance (e.g. sensitivity and resolution), primarily due to limited laboratory x-ray source brightness and narrow selection of usable x-ray optics. Here we present our patented x-ray source concept. Coupled with our proprietary high efficiency x-ray optics, the system provides over 50X brightness over a conventional x-ray illumination beam system comprised of a microfocus source and polycapillary optic. The brightness is enabled by the design of the x-ray targets, which are comprised of microstructured x-ray emitters in thermal contact with a diamond substrate. Utilization of a diamond substrate enables highly localized and large thermal gradients that rapidly cool the metal as x-rays and heat are generated under the bombardment of electrons. In addition to brightness, the spectral output of the x-ray source, particularly the characteristic lines, is sometimes indeed more important than brightness alone. For example, fluorescence cross-sections can vary by several orders of magnitude depending on the characteristic energy employed. Throughput and contrast of x-ray imaging and microscopy are also highly dependent on x-ray energy. Because characteristic lines can be the dominant spectral output for some metals, the ability to select and change metal types within an x-ray source provides substantial performance advantages. Sigray’s x-ray source incorporates several choices of metals on its x-ray target for push-button energy selectability within the x-ray source. A turret of Sigray’s interchangeable x-ray optics that are optimized for highest efficiencies at these energies can be coupled to provide the optimal flux and spectrum for each application.

Proceedings Article | 17 September 2019 Presentation

The new x-ray laboratory: enabling access to structure, composition, and morphology through laboratory x-ray instrumentation (Conference Presentation)

Jeff Gelb, David Vine, Ruimin Qiao, Xiaolin Yang, Srivatsan Seshadri, Benjamin Stripe, Sylvia Lewis, S. H. Lau, Wenbing Yun

Proceedings Volume 11113, 111130E (2019) https://doi.org/10.1117/12.2528840

KEYWORDS: X-rays, X-ray fluorescence spectroscopy, X-ray sources, X-ray optics, X-ray imaging, Lenses, Imaging systems, Scanners, Resolution enhancement technologies, Spectrometers

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Proceedings Article | 10 September 2019 Paper

Systematic analysis of microstructured array anode target for hard x-ray grating interferometer

Guibin Zan, David John Vine, Sylvia J. Y. Lewis, Qiuping Wang, Wenbing Yun, Ge Wang

Proceedings Volume 11113, 111130H (2019) https://doi.org/10.1117/12.2528281

KEYWORDS: Interferometers, X-rays, Hard x-rays, X-ray sources, Absorption, Brain-machine interfaces, X-ray imaging, Monte Carlo methods, Energy efficiency, Phase contrast

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Proceedings Article | 9 September 2019 Presentation + Paper

Design optimization of a confocal x-ray fluorescence imaging capability for XFM and SRX at NSLS-II

Yuan Gao, Andrew Kiss, Ryan Tappero, Benjamin Stripe, Wenbing Yun, Yong Chu

Proceedings Volume 11112, 1111204 (2019) https://doi.org/10.1117/12.2528026

KEYWORDS: Confocal microscopy, Imaging systems, Capillaries, X-ray fluorescence spectroscopy, Image resolution, X-rays, Tomography

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Proceedings Article | 10 May 2019 Paper

Image correction method without gain correction in grating-based x-ray phase-contrast imaging

Guibin Zan, Renfang Hu, Zhao Wu, Qiuping Wang, Wenbing Yun, Ge Wang

Proceedings Volume 11068, 110682A (2019) https://doi.org/10.1117/12.2524694

KEYWORDS: X-rays, X-ray imaging, Sensors, Scattering, Absorption, X-ray detectors, Signal attenuation, Imaging systems, Radiography, Image quality

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Proceedings Article | 18 October 2017 Presentation

New developments in ultra-high brightness microstructured x-ray sources for applications in Talbot-Lau imaging and dual-energy microanalytical/microXRF (Conference Presentation)

Wenbing Yun, David Reynolds, Vladimir Semenov, Janos Kirz, Alan Lyon, Sharon Chen, Benjamin Stripe, Richard Spink

Proceedings Volume 10387, 1038706 (2017) https://doi.org/10.1117/12.2273042

KEYWORDS: X-ray sources, X-rays, Metals, Dual energy imaging, Phase contrast, Interferometry, Patents, X-ray technology, Diamond, Electrons

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Proceedings Article | 23 August 2017 Presentation + Paper

Advances toward submicron resolution optics for x-ray instrumentation and applications

Mark Cordier, Benjamin Stripe, Wenbing Yun, S. H. Lau, Alan Lyon, David Reynolds, Sylvia J. Lewis, Sharon Chen, Vladimir Semenov, Richard Spink, Srivatsan Seshadri

Proceedings Volume 10386, 103860D (2017) https://doi.org/10.1117/12.2273094

KEYWORDS: X-ray optics, X-rays, Mirrors, Lenses, Zone plates, EUV optics, Capillaries, Energy efficiency, Point spread functions, Space mirrors

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Proceedings Article | 22 May 2009 Paper

Multiscale 3D bioimaging: from cell, tissue to whole organism

S. Lau, Ge Wang, Margam Chandrasekeran, Victor Fan, Mohd Nazrul, Hauyee Chang, Tiffany Fong, Jeff Gelb, Michael Feser, Wenbing Yun

Proceedings Volume 7378, 73781V (2009) https://doi.org/10.1117/12.828043

KEYWORDS: Tissues, Image resolution, Bone, X-rays, Tissue optics, 3D image processing, X-ray computed tomography, Tomography, Organisms, Cartilage

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While electron microscopes and AFMs are capable of high resolution imaging to molecular levels, there is an ongoing problem in integrating these results into the larger scale structure and functions of tissue and organs within a complex organism. Imaging biological samples with optical microscopy is predominantly done with histology and immunohistochemistry, which can take up to a several weeks to prepare, are artifact prone and only available as individual 2D images. At the nano resolution scale, the higher resolution electron microscopy and AFM are used, but again these require destructive sample preparation and data are in 2D. To bridge this gap, we describe a rapid non invasive hierarchical bioimaging technique using a novel lab based x-ray computed tomography to characterize complex biological organism in multiscale- from whole organ (mesoscale) to calcified and soft tissue (microscale), to subcellular structures, nanomaterials and cellular-scaffold interaction (nanoscale). While MicroCT (micro x-ray computed tomography) is gaining in popularity for non invasive bones and tissue imaging, contrast and resolution are still vastly inadequate compared to histology. In this study we will present multiscale results from a novel microCT and nanoCT (nano x-ray tomography system). The novel MicroCT can image large specimen and tissue sample at histology resolution of submicron voxel resolution, often without contrast agents, while the nanoCT using x-ray optics similar to those used in synchrotron radiation facilities, has 20nm voxel resolution, suitable for studying cellular, subcellular morphology and nanomaterials. Multiscale examples involving both calcified and soft tissue will be illustrated, which include imaging a rat tibia to the individual channels of osteocyte canaliculli and lacunae and an unstained whole murine lung to its alveoli. The role of the novel CT will also be discussed as a possible means for rapid virtual histology using a biopsy of a human regenerated bone sample done without contrast agents and that of other soft tissues with contrast agents. Comparison between histology, SEM and MRI will be given.

Proceedings Article | 7 September 2006 Paper

High-resolution x-ray tomography using laboratory sources

Andrei Tkachuk, Michael Feser, Hongtao Cui, Fred Duewer, Hauyee Chang, Wenbing Yun

Proceedings Volume 6318, 63181D (2006) https://doi.org/10.1117/12.682383

KEYWORDS: X-rays, Zone plates, Microscopes, Copper, X-ray imaging, Tomography, Phase contrast, Silicon, Objectives, X-ray detectors

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Proceedings Article | 29 August 2006 Paper

Dark-field image of full-field transmission hard x-ray microscope in 8-11 keV

Gung-Chian Yin, Fred Duewer, Xianghui Zeng, Alan Lyon, Wenbing Yun, Fu-Rong Chen, K. Liang

Proceedings Volume 6317, 631703 (2006) https://doi.org/10.1117/12.680216

KEYWORDS: Microscopes, X-rays, Stars, Hard x-rays, Zone plates, Scattering, Spatial frequencies, Gold, Spatial resolution, Tungsten

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Proceedings Article | 15 September 2005 Paper

Concept for an extreme ultraviolet sensor with a Fresnel zone plate for the GOES-R solar imaging suite

James Bremer, Wenbing Yun

Proceedings Volume 5901, 59010P (2005) https://doi.org/10.1117/12.615399

KEYWORDS: Extreme ultraviolet, Sensors, Zone plates, Thin films, Optical filters, Silicon, Solar radiation, Signal detection, Satellites, Aluminum

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Proceedings Article | 9 May 2005 Paper

X-ray microscopy for NDE of micro- and nano-structrues

Steve Wang, Frederick Duewer, Michael Feser, David Scott, Wenbing Yun

Proceedings Volume 5766, (2005) https://doi.org/10.1117/12.601370

KEYWORDS: X-rays, X-ray imaging, Imaging systems, Microscopes, Tomography, Nondestructive evaluation, Copper, Zone plates, X-ray microscopy, Image resolution

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Proceedings Article | 4 November 2004 Paper

Pathways to sub-10nm x-ray imaging using zone plate lens

Wenbing Yun, Michael Feser, Alan Lyon, Frederick Duewer, Yuxin Wang

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.568199

KEYWORDS: Zone plates, Diffraction, X-rays, Microscopes, X-ray imaging, Spatial resolution, Synchrotron x-ray imaging, Image resolution, X-ray sources, X-ray technology

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Proceedings Article | 4 November 2004 Paper

Multilayer Laue lenses as high-resolution x-ray optics

Joerg Maser, Gregory Stephenson, Stefan Vogt, Wenbing Yun, Albert Macrander, Hyon Kang, Chian Liu, Ray Conley

Proceedings Volume 5539, (2004) https://doi.org/10.1117/12.560046

KEYWORDS: Zone plates, Diffraction, X-ray optics, Point spread functions, X-rays, Optics manufacturing, Diffraction gratings, Modulation transfer functions, Lenses, Spatial resolution

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Proceedings Article | 14 October 2004 Paper

Calculation of x-ray refraction from near-edge absorption data only

Chris Jacobsen, Steve Wang, Wenbing Yun, Sean Frigo

Proceedings Volume 5538, (2004) https://doi.org/10.1117/12.560160

KEYWORDS: Absorption, X-rays, Refractive index, Phase contrast, X-ray imaging, Carbon, Refraction, Chemical species, X-ray astronomy, Numerical integration

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Proceedings Article | 21 November 2002 Paper

Near-field stacking of zone plates in the x-ray range

Jörg Maser, Barry Lai, Wenbing Yun, Sarvjit Shastri, Zhonghou Cai, W. Rodrigues, Shenglan Xu, E. Trackhtenberg

Proceedings Volume 4783, (2002) https://doi.org/10.1117/12.451396

KEYWORDS: Zone plates, X-rays, Diffraction, Hard x-rays, Energy efficiency, Near field, Spatial resolution, Near field optics, Manufacturing, Gold

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Proceedings Article | 13 December 2001 Paper

X-ray microdiffraction study of martensite-retained austenite microstructures at the tip of a steel blade

Zhonghou Cai, Barry Lai, Peter Ilinski, Dan Legnini, Wenbing Yun

Proceedings Volume 4499, (2001) https://doi.org/10.1117/12.450233

KEYWORDS: X-rays, Diffraction, Sensors, X-ray diffraction, CCD image sensors, Heat treatments, Zone plates, X-ray detectors, Charge-coupled devices, Scattering

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Proceedings Article | 13 November 1998 Paper

Performance of side-cooled high-heat-load mirrors

Ali Khounsary, Wenbing Yun, Ian McNulty, Zhonghou Cai, Barry Lai

Proceedings Volume 3447, (1998) https://doi.org/10.1117/12.331120

KEYWORDS: Mirrors, X-rays, Monochromators, Optical components, Copper, Silicon, Heat flux, Polishing, Synchrotrons, X-ray optics

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Proceedings Article | 13 November 1998 Paper

Mirror distortion measurements with an in-situ LTP

Peter Takacs, Shinan Qian, Kevin Randall, Wenbing Yun, Haizhang Li

Proceedings Volume 3447, (1998) https://doi.org/10.1117/12.331124

KEYWORDS: Mirrors, Distortion, Camera shutters, Synchrotrons, Prisms, Thermography, X-rays, Tolerancing, Head, Interference (communication)

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Proceedings Article | 6 November 1998 Paper

Advanced zone plate microfocusing optics

Barry Lai, Wenbing Yun, Jorg Maser, Zhonghou Cai, W. Rodrigues, Dan Legnini, Zhen Chen, Azalia Krasnoperova, Yuli Vladimirsky, Franco Cerrina, Enzo Di Fabrizio, Massimo Gentili

Proceedings Volume 3449, (1998) https://doi.org/10.1117/12.330340

KEYWORDS: Zone plates, X-rays, X-ray optics, Spatial resolution, Diffraction, Optics manufacturing, X-ray lithography, Grazing incidence, Manufacturing, Hard x-rays

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Proceedings Article | 6 November 1998 Paper

Using x-ray microprobes for environmental research

Ken Kemner, Wenbing Yun, Zhonghou Cai, Barry Lai, Heung-Rae Lee, Dan Legnini, W. Rodrigues, Julie Jastrow, R. Miller, Stephan Pratt, M. Schneegurt, C. Kulpa, Alvin Smucker

Proceedings Volume 3449, (1998) https://doi.org/10.1117/12.330354

KEYWORDS: Metals, X-rays, Interfaces, Soil contamination, Soil science, Fungi, Hard x-rays, X-ray fluorescence spectroscopy, Imaging spectroscopy, Zinc

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Proceedings Article | 5 June 1998 Paper

0.1-um high-aspect-ratio pattern replication and linewidth control

Zheng Chen, Yuli Vladimirsky, Franco Cerrina, Barry Lai, Wenbing Yun, Efim Gluskin

Proceedings Volume 3331, (1998) https://doi.org/10.1117/12.309620

KEYWORDS: Gold, Photomasks, Reactive ion etching, X-rays, Electroplating, Polymethylmethacrylate, Etching, Plating, Photoresist materials, X-ray lithography

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Proceedings Article | 11 December 1997 Paper

Advanced Photon Source undulator beamline tests of a contact-cooled silicon u-shaped monochromator

Wah Keat Lee, Patricia Fernandez, Ali Khounsary, Wenbing Yun, Emil Trakhtenberg

Proceedings Volume 3151, (1997) https://doi.org/10.1117/12.294480

KEYWORDS: Crystals, Monochromators, Laser crystals, Silicon, Optical components, Mirrors, Crystallography, Heat flux, Liquid crystals, Cameras

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Proceedings Article | 24 October 1997 Paper

X-ray microtomography as a fast three-dimensional imaging technology using a CCD camera coupled with a CdWO4 single-crystal scintillator

Heung-Rae Lee, Barry Lai, Wenbing Yun, Derrick Mancini, Zhonghou Cai

Proceedings Volume 3149, (1997) https://doi.org/10.1117/12.279361

KEYWORDS: X-rays, Scintillators, Gold, CCD cameras, Microscopes, 3D image processing, X-ray imaging, 3D image reconstruction, Crystals, Reconstruction algorithms

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Proceedings Article | 22 November 1996 Paper

Contact-cooled U-monochromators for high-heat-load x-ray beamlines

Ali Khounsary, Wenbing Yun, Emil Trakhtenberg, Shenglan Xu, Lahsen Assoufid, Wah Keat Lee

Proceedings Volume 2856, (1996) https://doi.org/10.1117/12.259880

KEYWORDS: Monochromators, Crystals, Mirrors, X-rays, Silicon, Laser crystals, Heat flux, Copper, Crystallography, Cryogenics

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Proceedings Article | 21 November 1996 Paper

Design and fabrication of a 1.2-m long internally cooled silicon x-ray mirror for APS

Thomas Tonnessen, Ali Khounsary, Wenbing Yun, Deming Shu

Proceedings Volume 2855, (1996) https://doi.org/10.1117/12.259832

KEYWORDS: Mirrors, Silicon, X-rays, 3D modeling, Heat flux, Surface finishing, Polishing, Glasses, Optical components, Silicon carbide

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Proceedings Article | 21 November 1996 Paper

Contact-cooled U monochromators for high heat load x-ray beamlines

Ali Khounsary, Wenbing Yun, Emil Trakhtenberg, Shenglan Xu, Lahsen Assoufid, Wah Keat Lee

Proceedings Volume 2855, (1996) https://doi.org/10.1117/12.259834

KEYWORDS: Monochromators, Crystals, X-rays, Mirrors, Silicon, Heat flux, Laser crystals, Copper, Crystallography, Cryogenics

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Proceedings Article | 13 September 1996 Paper

Beamline and exposure station for deep x-ray lithography at the advanced photon source

Barry Lai, Derrick Mancini, Wenbing Yun, Efim Gluskin

Proceedings Volume 2880, (1996) https://doi.org/10.1117/12.250948

KEYWORDS: X-rays, Mirrors, Scanners, X-ray lithography, Photomasks, Collimation, Polymethylmethacrylate, Synchrotron radiation, Absorption, Surface finishing

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Proceedings Article | 25 September 1995 Paper

Microfocusing optics for hard xrays fabricated by x-ray lithography

Azalia Krasnoperova, Zheng Chen, Franco Cerrina, Enzo Di Fabrizio, Massimo Gentili, Wenbing Yun, Barry Lai, Efim Gluskin

Proceedings Volume 2516, (1995) https://doi.org/10.1117/12.221670

KEYWORDS: Gold, Photoresist materials, X-ray lithography, X-rays, Photomasks, Lithography, Polymethylmethacrylate, Electroplating, Optical fabrication, Zone plates

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Proceedings Article | 25 September 1995 Paper

Parameter optimization for producing an elliptical surface from a spherical surface by differential deposition

Zhonghou Cai, Wenbing Yun, P. Plag

Proceedings Volume 2516, (1995) https://doi.org/10.1117/12.221683

KEYWORDS: Spherical lenses, Mirrors, Reflection, X-rays, Coating, Synchrotron radiation, Manufacturing, Synchrotrons, Grazing incidence, Geometrical optics

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SPIE Journal Paper | 1 February 1995

In situ surface profiler for high heat load mirror measurement

Shinan Qian, Werner Jark, Peter Takacs, Kevin Randall, Wenbing Yun

OE, Vol. 34, Issue 02, (February 1995) https://doi.org/10.1117/12.10.1117/12.194834

KEYWORDS: Mirrors, Prisms, Head, Distortion, Interferometers, In situ metrology, Fourier transforms, Profilometers, Laser beam diagnostics, Beam splitters

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Proceedings Article | 1 February 1994 Paper

Material optimization for hard x-ray Fresnel zone plates

John Chrzas, Wenbing Yun, Barry Lai, Dan Legnini, Y. Xiao

Proceedings Volume 2011, (1994) https://doi.org/10.1117/12.167244

KEYWORDS: Zone plates, Absorption, Hard x-rays, Lithography, Gold, Nickel, Phase shift keying, Beryllium, Aluminum, Phase shifts

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Proceedings Article | 12 November 1993 Paper

High heat flux mirror design for an undulator beamline

Thomas Tonnessen, Steven Fisher, Frank Anthony, David Lunt, Ali Khounsary, Kevin Randall, Efim Gluskin, Wenbing Yun

Proceedings Volume 1997, (1993) https://doi.org/10.1117/12.163827

KEYWORDS: Mirrors, 3D modeling, Heat flux, Thermal engineering, Distortion, Silicon, Coating, Polishing, Surface finishing, Objectives

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Proceedings Article | 20 January 1993 Paper

Moessbauer-Fresnel zone plate as nuclear monochromator

Timothy Mooney, Ercan Alp, Wenbing Yun

Proceedings Volume 1740, (1993) https://doi.org/10.1117/12.138707

KEYWORDS: Zone plates, Monochromators, Refractive index, Synchrotron radiation, X-rays, Scattering, Energy efficiency, Iron, X-ray optics, Luminescence

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Proceedings Article | 20 January 1993 Paper

Performance comparison of hard x-ray plates fabricated by two different methods

Wenbing Yun, Barry Lai, Dan Legnini, Y. Xiao, John Chrzas, Kenneth Skulina, Richard Bionta, V. White, Franco Cerrina

Proceedings Volume 1740, (1993) https://doi.org/10.1117/12.138694

KEYWORDS: Zone plates, X-rays, Spatial resolution, Synchrotron radiation, Hard x-rays, Energy efficiency, Lithography, Synchrotrons, Diffraction, Optical components

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