Conferences related to X-ray Imaging

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2023 Annual International Conference of the IEEE Engineering in Medicine & Biology Conference (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.


2021 IEEE Photovoltaic Specialists Conference (PVSC)

Photovoltaic materials, devices, systems and related science and technology


2020 59th IEEE Conference on Decision and Control (CDC)

The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.


2020 IEEE International Conference on Image Processing (ICIP)

The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2020, the 27th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


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Periodicals related to X-ray Imaging

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Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electron Device Letters, IEEE

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronic devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


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Most published Xplore authors for X-ray Imaging

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Xplore Articles related to X-ray Imaging

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Multicolor Soft X-Ray Imaging of <formula formulatype="inline"><tex>$Z$</tex></formula>-Pinch Radiation Sources on the Z-Machine Pulsed-Power Driver

IEEE Transactions on Plasma Science, 2008

Time-resolved X-ray pinhole imaging is employed for diagnosing fast Z-pinch implosions on the Z accelerator. Reflection from a multilayer mirror produces monochromatic 277-eV images of the Z-pinch plasma in the final stages of implosion and stagnation. Simultaneous imaging with a filtered pinhole camera or using a second mirror can yield multicolor X-ray images which contain spectral as well as spatial ...


Optimization of Medipix-2 Threshold Masks for Spectroscopic X-Ray Imaging

IEEE Transactions on Nuclear Science, 2009

Spectroscopic X-ray imaging enhances image contrast and provides advanced object information due to energy resolution. The Medipix-2 chip is a photon counting semiconductor detector and features two energy thresholds for energy selective imaging. The aim of this study is to present the development of optimized threshold adjustment masks with small energy windows of about 3 keV width using a monochromatic ...


Data intensive science at synchrotron based 3D x-ray imaging facilities

2012 IEEE 8th International Conference on E-Science, 2012

New developments in detector technology allow the acquisition of micrometer- resolution x-ray transmission images of specimens as large as a few millimeters at unprecedented frame rates. The high x-ray flux density generated by the Advanced Photon Source (APS) allows for detector exposure times ranging from hundreds of milliseconds to 150 picoseconds. The synchronization of the camera with the rotation stage ...


Novel Phosphors of<formula formulatype="inline"><tex Notation="TeX">${\rm Eu}^{3+}$</tex></formula>or<formula formulatype="inline"><tex Notation="TeX">${\rm Sm}^{3+}$</tex></formula>Doped<formula formulatype="inline"><tex Notation="TeX">${\rm Li}_{6}{\rm Lu}({{\rm BO}_3)_3}$</tex></formula>for X-Ray Imaging

IEEE Transactions on Nuclear Science, 2013

Li6Lu(BO3)3:Eu3+and Li6Lu(BO3)3:Sm3+are produced by solid state reaction. We have synthesized and characterized the luminescence of their properties for the first time. Firstly, we confirmed the structure and shape of Li6Lu(BO3)3:Eu3+, Sm3+phosphor using X-ray diffraction. Secondly, we optimized doping concentrations of activators. The lithium lutetium borate has a high effective atomic number (_Z_eff=52) and the molecular weight is 393 g/mol. Hence, ...


Development of bi-plane X-ray imaging system for real-time position recognition of intravascular therapeutic microrobot using EMA system

IEEE ISR 2013, 2013

At present, microrobots have been utilized as useful tools in diagnosis and treatment of various human diseases. As a new alternative for Chronic total occlusion (CTO), researchers are developing a intravascular therapeutic microrobot system by controlling the movement of the microrobot outside the patient's body, and using an electromagnetic actuation (EMA) system to increase the accuracy of therapy. We proposed ...


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Educational Resources on X-ray Imaging

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IEEE-USA E-Books

  • Multicolor Soft X-Ray Imaging of <formula formulatype="inline"><tex>$Z$</tex></formula>-Pinch Radiation Sources on the Z-Machine Pulsed-Power Driver

    Time-resolved X-ray pinhole imaging is employed for diagnosing fast Z-pinch implosions on the Z accelerator. Reflection from a multilayer mirror produces monochromatic 277-eV images of the Z-pinch plasma in the final stages of implosion and stagnation. Simultaneous imaging with a filtered pinhole camera or using a second mirror can yield multicolor X-ray images which contain spectral as well as spatial information, allowing for the study of radiation physics in dense Z-pinches.

  • Optimization of Medipix-2 Threshold Masks for Spectroscopic X-Ray Imaging

    Spectroscopic X-ray imaging enhances image contrast and provides advanced object information due to energy resolution. The Medipix-2 chip is a photon counting semiconductor detector and features two energy thresholds for energy selective imaging. The aim of this study is to present the development of optimized threshold adjustment masks with small energy windows of about 3 keV width using a monochromatic X-ray source for equalization and to demonstrate the benefits of spectroscopic X-ray imaging using an integrated circuit as object.

  • Data intensive science at synchrotron based 3D x-ray imaging facilities

    New developments in detector technology allow the acquisition of micrometer- resolution x-ray transmission images of specimens as large as a few millimeters at unprecedented frame rates. The high x-ray flux density generated by the Advanced Photon Source (APS) allows for detector exposure times ranging from hundreds of milliseconds to 150 picoseconds. The synchronization of the camera with the rotation stage allows a full 3D dataset to be acquired in less than one second. The micro and nano tomography systems available at the x-ray imaging beamlines of the APS are routinely used in material science and geoscience applications where high-resolution and fast 3D imaging are instrumental in extracting in situ four-dimensional dynamic information. Here we will describe the computational challenges associated with the x-ray imaging systems at the APS and discuss our current data model and data analysis processes.

  • Novel Phosphors of<formula formulatype="inline"><tex Notation="TeX">${\rm Eu}^{3+}$</tex></formula>or<formula formulatype="inline"><tex Notation="TeX">${\rm Sm}^{3+}$</tex></formula>Doped<formula formulatype="inline"><tex Notation="TeX">${\rm Li}_{6}{\rm Lu}({{\rm BO}_3)_3}$</tex></formula>for X-Ray Imaging

    Li6Lu(BO3)3:Eu3+and Li6Lu(BO3)3:Sm3+are produced by solid state reaction. We have synthesized and characterized the luminescence of their properties for the first time. Firstly, we confirmed the structure and shape of Li6Lu(BO3)3:Eu3+, Sm3+phosphor using X-ray diffraction. Secondly, we optimized doping concentrations of activators. The lithium lutetium borate has a high effective atomic number (_Z_eff=52) and the molecular weight is 393 g/mol. Hence, it is considered that the efficiency of absorption is high in comparison to that of commonly used phosphor in X-ray imaging. Additionally, Li6Lu(BO3)3:Eu3+and Li6Lu(BO3)3:Sm3+emit a luminescence of the red region that are well matched with CCDs in terms of quantum efficiency. Furthermore, host material involves a large amount of lithium and boron. The neutron interacts with these materials. Consequently Eu3+or Sm3+doped Li6Lu(BO3)3phosphor can be a good candidate not only for X-ray imaging in medical fields but also for neutron detection imaging in various industrial fields.

  • Development of bi-plane X-ray imaging system for real-time position recognition of intravascular therapeutic microrobot using EMA system

    At present, microrobots have been utilized as useful tools in diagnosis and treatment of various human diseases. As a new alternative for Chronic total occlusion (CTO), researchers are developing a intravascular therapeutic microrobot system by controlling the movement of the microrobot outside the patient's body, and using an electromagnetic actuation (EMA) system to increase the accuracy of therapy. We proposed a new bi-plane x-ray imaging system for real-time position tracking of intravascular microrobot. This system are consisted three device, up to 110kVp, 10mA x-ray mono-block tube, 1.1kW x-ray generator and 24×30cm x-ray flat panel detector. Bi-plane X-ray imaging system resolution is 200um and fluoroscopic dose rate is 46mGy/min.

  • Optimal energy threshold arrangement in photon-counting spectral x-ray imaging

    We study the influence of the locations of energy thresholds on the basis image noise in spectral X-ray imaging using photon counting devices. Our simulations assume photon counting detectors equipped with up to four discriminator units allowing the binning of photons into up to four distinct energy windows. We use the binned counting data in order to compute the Cramer-Rao lower bound (CRB) for the basis image noise in a photo-effect -Compton-effect decomposition of the attenuation. By studying the variations of the CRB with respect to the threshold energies, we obtain optimized arrangements for each number of energy thresholds and for different values of external copper filtration. We compare the basis image noise for the optimal arrangement with the noise corresponding to an equidistant threshold arrangement and with the results of a tube dual-energy acquisition. Our simulations were performed on two different X-ray paths corresponding to two perpendicular directions through the human thorax. Our results show that in many cases the basis image noise can be strongly reduced by optimizing the locations of the threshold energies.

  • Polycapillary parallel collimators for X-ray imaging: Experimental characterization of the energy and angular response function

    The full exploitation of polycapillary X-ray lenses in X-ray imaging systems - e.g. based on X-ray fluorescence, X-ray diffraction, X-ray scattering - is strictly related to the critical angle for total X-ray reflection. This means that the output beam is strongly dependent on both the spatial and spectral properties of the incoming beam. Therefore, X-ray polycapillary optics need to tailor their design to the specific experiment and require a careful performance qualification. We carried out an experimental study of a parallel polycapillary collimator at the synchrotron and with a conventional X-ray generator in order to obtain a complete qualification of its energy-angular response function. The impact of other relevant effects like response uniformity and X-ray penetration, were studied. The obtained response matrix allows precise modeling of photon transport in the energy range of interest and qualifying the achievable performance with polycapillary technology when applied to X-ray scatter imaging.

  • Towards High-Resolution X-Ray Imaging Using a Structured Scintillator

    Structured scintillators, by light-guiding secondary emitted visible photons to a pixel in a CCD or CMOS image sensor, improve the lateral resolution of X-ray imaging detectors. In this work we have fabricated pore arrays in a silicon wafer and subsequently filled them with CsI(Tl) by a melting process. The goal was to down-scale the pore geometry for increased resolution. The results show that although pore depth must be reduced to comply with achievable aspect ratio of the Inductively Coupled Plasma (ICP) etching, melting into the pores is possible. The time and temperature has, however, to be optimized to prevent thallium loss during the melting. By correlating light yield measurements with the X-ray absorption in samples of various geometries, we find that the efficiency is slightly reduced for pore diameters approaching one micron. Nevertheless, the increased absorption in deep pores will lead to a significantly improved quantum efficiency compared to thin films currently used to achieve the same lateral resolution.

  • Progress in polycrystalline HgI/sub 2/ used for X-ray imaging detectors

    Use of physical vapor deposition (PVD) of polycrystalline HgI/sub 2/ films on Si-TFT arrays brought about a breakthrough in the use of HgI/sub 2/ for large area pixellated X-ray imaging. Latest advances in the deposition process led to full-texture high-density films, with highly orientated crystallites, as evidenced for example by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The good structural data also yielded excellent electrical charge transport properties, which approached those of single crystals. Transient charge transport (TCT) with alpha-particle near-surface absorption was used to measure carrier mobility, trapping time, and surface recombination velocity for each sample. Typical electron and hole mobility of high quality polycrystalline HgI/sub 2/ films were /spl mu//sub n/ = 88 cm/sup 2//V /spl middot/ s and /spl mu//sub p/ = 4.1 cm/sup 2//V /spl middot/ s, respectively. Trapping times were /spl tau//sub n/ /spl cong/ 18 /spl mu/s and /spl tau//sub p/ /spl cong/ 3.5 /spl mu/s, and surface recombination velocities s/sub n/ /spl cong/ 1.4 /spl times/ 10/sup 5/ cm/s and s/sub p/ /spl cong/ 3.7 /spl times/ 10/sup 3/ cm/s. The performance of these detectors as spectrometers in a standard nuclear spectroscopy system was evaluated. We used a gamma source of /sup 241/Am with the characteristic 59.6 keV gamma photo-peak. The full width at half maximum (FWHM) of the detector photo peak depended on its charge transport properties. High quality polycrystalline HgI/sub 2/ film detectors yield a peak of approximately 38 keV FWHM, while lower quality ones yield a much broader peak of FWHM > 70 keV. Such widths are still inferior to those of a single crystal (typically /spl sim/5 keV), yet the results suggest that further improvement through optimization of manufacturing conditions is possible. The talk reviews our past efforts, recent new results, and plans for the future.

  • Moiré artefact reduction in Talbot-Lau X-ray imaging

    Talbot-Lau X-ray imaging provides information about X-ray scattering, refraction, and attenuation features of objects. This capability offers a variety of possibilities for medical and industrial applications. However, already slight inaccuracies during the measurement process result in moiré artefacts in the reconstructed images. A sufficient setup stability is expensive and not invariably achievable. We developed an advanced reconstruction algorithm, which reduces moiré artefacts by compensating these inaccuracies. Therefore, we defined a cost function, which is sensitive to moiré artefacts. This cost function is minimized by adjusting the phase-step positions. To demonstrate the capability of the developed algorithm, we executed an acquisition of a pig's trotter while the setup was deliberately disturbed by vibrations. By applying the developed algorithm, the moiré artefacts were largely reduced. This development is a crucial step to facilitate Talbot-Lau X-ray imaging in clinical practice and industrial applications.



Standards related to X-ray Imaging

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American National Standard for the Performance of Checkpoint Cabinet X-Ray Imaging Security Systems

This document establishes standards for the technical performance of cabinet x-ray imaging systems used for screening at security checkpoints and other inspection venues. Included are all x-ray systems designed primarily for the inspection of baggage at airline, railroad, and bus terminals, and in similar facilities. An xray tube used within a shielded part of a building, or x-ray equipment that ...



Jobs related to X-ray Imaging

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