X-RAY COMPUTERIZED TOMOGRAPHY with resolution in the micrometer range.
Tomography using x-ray transmission.
Devices for accelerating protons or electrons in closed orbits where the accelerating voltage and magnetic field strength varies (the accelerating voltage is held constant for electrons) in order to keep the orbit radius constant.
A fabricated tooth substituting for a natural tooth in a prosthesis. It is usually made of porcelain or plastic.
Loss of the tooth substance by chemical or mechanical processes
Occlusal wear of the surfaces of restorations and surface wear of dentures.
Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
Penetrating, high-energy electromagnetic radiation emitted from atomic nuclei during NUCLEAR DECAY. The range of wavelengths of emitted radiation is between 0.1 - 100 pm which overlaps the shorter, more energetic hard X-RAYS wavelengths. The distinction between gamma rays and X-rays is based on their radiation source.
Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film).
Identification and measurement of ELEMENTS and their location based on the fact that X-RAYS emitted by an element excited by an electron beam have a wavelength characteristic of that element and an intensity related to its concentration. It is performed with an electron microscope fitted with an x-ray spectrometer, in scanning or transmission mode.
A subclass of cartilaginous fish comprising the SHARKS; rays; skates (SKATES (FISH);), and sawfish. Elasmobranchs are typically predaceous, relying more on smell (the olfactory capsules are relatively large) than sight (the eyes are relatively small) for obtaining their food.
A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.
The common name for all members of the Rajidae family. Skates and rays are members of the same order (Rajiformes). Skates have weak electric organs.
Neutrons, the energy of which exceeds some arbitrary level, usually around one million electron volts.
"X-ray computed microtomography of Megachirella wachtleri". Scientific Data. 5: Article number 180244. Bibcode:2018NatSD... ... 2018) perform X-ray scans at the micron scale of the holotype specimen of Megachirella wachtleri. Fossil trackways probably ... Dennis F. A. E. Voeten; Tobias Reich; Ricardo Araújo; Torsten M. Scheyer (2018). "Synchrotron microtomography of a Nothosaurus ... utilizing both X-ray and neutron computed tomography, is published by Jones et al. (2018). A study on the anatomy of the ...
The X-ray line beam is then translated across the part and data is collected by the detector. The data is then reconstructed to ... "3D Micro-Tomography - A Powerful Engineering Tool". 3D Scanning Technologies. July 5, 2010. Noel, Julien. "Advantages of CT in ... Industrial CT scanning (3D X-ray) is used to detect flaws inside a part such as porosity, an inclusion, or a crack. Metal ... Bull, D. J.; Helfen, L.; Sinclair, I.; Spearing, S. M.; Baumbach, T. (2013). "A comparison of multi-scale 3D X-ray tomographic ...
X-ray Computed Micro-Tomography of the Divje Babe 'Flute'*". Archaeometry. 54 (3): 581-590. doi:10.1111/j.1475-4754.2011.00630. ...
"X-ray micro-tomography of Carboniferous stem-Dictyoptera: New insights into early insects". Biology Letters. 6 (5): 699-702. ... "High-fidelity X-ray micro-tomography reconstruction of siderite-hosted Carboniferous arachnids". Biology Letters. 5 (6): 841- ...
Hünicken's identification relied heavily on X-ray microtomography of the holotype. Additional hidden structures - such as a ...
X-ray computed tomography X-ray CT, CATScan 1971 X-ray microtomography X-ray microCT ... Synchrotron X-ray tomographic microscopyEdit. A new technique called synchrotron X-ray tomographic microscopy (SRXTM) allows ... Multiple X-ray computed tomographs (with quantitative mineral density calibration) stacked to form a 3D model. ... By moving an X-ray source and the film in opposite directions during the exposure, and modifying the direction and extent of ...
CS1 maint: discouraged parameter (link) Russell Garwood, Jason A. Dunlop & Mark D. Sutton (2009). "High-fidelity X-ray micro- ... Recent X-ray imaging revealed that these arachnids were covered by protective spikes. Woodward, H. 1871. On the discovery of a ...
"High-fidelity X-ray micro-tomography reconstruction of siderite-hosted Carboniferous arachnids". Biology Letters. 5 (6): 841- ... Recent x-ray imaging revealed that Eophrynus prestvicii were covered by protective spikes on the back-half of its body. This ...
Russell Garwood, Jason A. Dunlop & Mark D. Sutton (2009). "High-fidelity X-ray micro-tomography reconstruction of siderite- ... revealed by X-ray computed tomography, with a cladistic analysis of the extinct trigonotarbid arachnids". Zoological Journal of ...
doi:10.1007/s12052-011-0357-y. Garwood, Russell J.; Dunlop, Jason A.; Sutton, Mark D. (2009). "High-fidelity X-ray micro- ... Garwood, Russell J.; Sutton, Mark D. (2010). "X-ray micro-tomography of Carboniferous stem-Dictyoptera: New insights into early ...
"Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales". Nature. 450 (7169): 549-52. ... "Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales". Nature. 450 (7169): 549-52. ... A 2007 study examining phase-contrast X-ray images of gymnosperm seeds suggested that the supported the Anthophyte hypothesis. ... Ray MM, Rothwell GW, Stockey RA (September 2014). "Anatomically Preserved Early Cretaceous Bennettitalean Leaves: ...
Russell Garwood, Jason A. Dunlop & Mark D. Sutton (2009). "High-fidelity X-ray micro-tomography reconstruction of siderite- ...
"Phase-contrast X-ray microtomography links Cretaceous seeds with Gnetales and Bennettitales". Nature. 450 (7169): 549-552. ... Ray, Pallav (ed.), "Itajuba yansanae Gen and SP NOV of Gnetales, Araripe Basin (Albian-Aptian) in Northeast Brazil", Climate ...
Garwood, R.; Dunlop, J. A.; Sutton, M. D. (2009). "High-fidelity X-ray micro-tomography reconstruction of siderite-hosted ...
doi:10.1016/S1474-7065(03)00121-9. Russell Garwood, Jason A. Dunlop & Mark D. Sutton (2009). "High-fidelity X-ray micro- ...
"High-fidelity X-ray micro-tomography reconstruction of siderite-hosted Carboniferous arachnids". Biology Letters. 5 (6): 841- ... revealed by X-ray computed tomography, with a cladistic analysis of the extinct trigonotarbid arachnids". Zoological Journal of ...
"A model-based correction method for beam hardening artefacts in X-ray microtomography". Journal of X-ray Science and Technology ... Barium sulfate suspension Dosimetry MRI versus CT Tomosynthesis Virtopsy X-ray microtomography Xenon-enhanced CT scanning "CT ... CT scanners use a rotating x-ray tube and a row of detectors placed in the gantry to measure X-ray attenuations by different ... Contrast media used for X-ray CT, as well as for plain film X-ray, are called radiocontrasts. Radiocontrasts for CT are, in ...
Garwood, R.; Sutton, M. (2010). "X-ray micro-tomography of Carboniferous stem-Dictyoptera: new insights into early insects". ...
The x-ray synchrotron microtomography study of early H. sapiens sapiens argues that this difference existed between the two ... "Nondestructive imaging of hominoid dental microstructure using phase contrast X-ray synchrotron microtomography". Journal of ... calculated using the noninvasive imaging of growth patterns in tooth enamel by means of x-ray synchrotron microtomography. This ...
ISBN 978-0-521-82149-0. Garwood, Russell J.; Sutton, Mark D. (2010). "X-ray micro-tomography of Carboniferous stem-Dictyoptera ...
Garwood, Russell J.; Sutton, Mark D. (2010). "X-ray micro-tomography of Carboniferous stem-Dictyoptera: New insights into early ...
"Unlocking history through automated virtual unfolding of sealed documents imaged by X-ray microtomography". Nature ...
"Unlocking history through automated virtual unfolding of sealed documents imaged by X-ray microtomography". Nature ... requires obtaining a sample from an object or artwork and exposing it to X-Ray radiation X-Ray Fluorescence Spectroscopy (XRF) ... For example, organic materials are likely to be destroyed if exposed to too much radiation, a concern when doing X-ray and ... Can identify elements both on the surface and sub-surface by performing x-ray scans over the entirety of an artwork Non- ...
"Unlocking history through automated virtual unfolding of sealed documents imaged by X-ray microtomography". Nature ... An X-ray of the Ghent Altarpiece, painted by Jan Van Eyck, in Saint Bavo Cathedral in Ghent, Belgium revealed the structure and ... X-ray spectromicroscopy has also been used to analyse the reactions of pigments in paintings. For example, in analysing colour ... An X-ray of the painting revealed that Rembrandt fine-tuned the composition several times, alternating the glances between the ...
... had been previously scanned using X-ray microtomography (XMT), a technology used in dental and other medical, industrial, and ... "Unlocking history through automated virtual unfolding of sealed documents imaged by X-ray microtomography". Nature ...
It is relatively commonplace to study the internal details of fossils using X-ray microtomography. Paleontology, biology, ...
Biomechanics of dromaeosaurid dinosaur claws: application of x-ray microtomography, nanoindentation and finite element analysis ...
An X-ray microtomography (Micro-CT) scanner creates a 3-dimensional image of the sample. An X-ray scanner can produce a spot as ... Nicholas Wade (January 20, 2015). "Unlocking Scrolls Preserved in Eruption of Vesuvius, Using X-Ray Beams". The New York Times ... created a set of computer programs called Volume Cartography to reconstruct the layers of text in a digital X-ray image of the ... "Revealing letters in rolled Herculaneum papyri by X-ray phase-contrast imaging". Nature Communications. 6: 5895. Bibcode: ...
San Francisco and the Director of the National Center for X-ray Tomography. Her research focus on X-ray microtomography for ... The NCXT is home to the world's first soft x-ray microscope designed specifically for biomedical research. Larabell received ... UCSF profiles - Carolyn Larabell Bay Area To Get Unique X-Ray Microscopy Resource - Berkeley Lab News Carolyn Larabell CV (2015 ... Larabell is currently the director the National Center for X-ray Tomography (NCXT) at Lawrence Berkeley National Laboratory, ...
"Phase contrast X-ray synchrotron microtomography and the oldest damselflies in amber (Odonata: Zygoptera: Hemiphlebiidae)". ...
Dual energy X-ray absorptiometry[edit]. Main article: Dual energy X-ray absorptiometry ... Main article: X-ray image intensifier. As an alternative to X-ray detectors, image intensifiers are analog devices that readily ... which generate X-rays from X-ray tubes. The resultant images from the radiograph (X-ray generator/machine) or CT scanner are ... an X-ray source and its associated detectors rotate around the subject which itself moves through the conical X-ray beam ...
X-ray microtomography. *Electron beam tomography. Targets. *Coronary *Calcium scan. *CT angiography ...
X-ray microtomography(英语:X-ray microtomography). *Electron beam tomography(英语:Electron beam tomography) ... DXA(英语:Dual-energy X-ray absorptiometry)/DXR(英语:Digital X-ray radiogrammetry) ... KUB(英语:Kidneys, ureters, and bladder x-ray). * ... gamma ray: Myocardial perfusion imaging(英语:Myocardial perfusion ...
X-ray microtomography. *Electron beam computed tomography. *Cone beam computed tomography. Targets. *Coronary *Calcium scan ...
X-ray microtomography. *Electron beam computed tomography. *Cone beam computed tomography. Targets. *Coronary *Calcium scan ...
Confocal X-ray fluorescence imaging is a newer technique that allows control over depth, in addition to horizontal and vertical ... The signal was visualized by a CRT of an oscilloscope, the cathode ray was moved simultaneously with the objective. A special ... "Confocal X-ray Fluorescence Imaging and XRF Tomography for Three Dimensional Trace Element Microanalysis". Microscopy and ...
X-ray images are then taken in a supine position at intervals of 20-30 minutes. Real-time fluoroscopy is used to assess bowel ... Barium X-ray examinations are useful tools for the study of appearance and function of the parts of the gastrointestinal tract ... Barium swallow X-ray examinations are used to study the pharynx[4] and esophagus.[2] ... As a result, areas coated by barium sulfate will appear white on an X-ray film. The passage of barium through the ...
X-ray microtomography reveals the unerupted lower third incisor (i3), canine (c1), third premolar (p3), and fourth premolar (p4 ...
"A model-based correction method for beam hardening artefacts in X-ray microtomography". Journal of X-ray Science and Technology ... Contrast media used for X-ray CT, as well as for plain film X-ray, are called radiocontrasts. Radiocontrasts for X-ray CT are, ... T: X-ray tube D: X-ray detectors X: X-ray beam R: Gantry rotation ... X-ray computed tomography (X-ray CT), computerized axial ... Computed tomography operates by using an X-ray generator that rotates around the object; X-ray detectors are positioned on the ...
"X-ray micro-tomography of Carboniferous stem-Dictyoptera: New insights into early insects". Biology Letters. 6 (5): 699-702. ...
... and X-ray angiography), differences in the mechanism by which this damage takes place suggests that the cancer risk of MRI, if ... X-ray microtomography. *Electron beam computed tomography. *Cone beam computed tomography. Targets. *Coronary *Calcium scan ...
Ray, C. Claiborne (28 May 2012). "The mighty tick". New York Times. Retrieved 15 December 2016.. ... "Microtomography of the Baltic amber tick Ixodes succineus reveals affinities with the modern Asian disease vector Ixodes ...
It is relatively commonplace to study the internal details of fossils using X-ray microtomography.[19][20] Paleontology, ...
Another extensive use of scintillography is in medical imaging techniques which use gamma ray detectors called gamma cameras. ... Scintigraphy is unlike a diagnostic X-ray where external radiation is passed through the body to form an image. ... images in a similar process to the capture of x-ray images. In contrast, SPECT and positron emission tomography (PET) form 3- ... X-ray microtomography. *Electron beam computed tomography. *Cone beam computed tomography. Targets. *Coronary *Calcium scan ...
In modern PET-CT scanners, three-dimensional imaging is often accomplished with the aid of a CT X-ray scan performed on the ... Time-of-flight PET makes use of very fast gamma-ray detectors and data processing system which can more precisely decide the ... Alternative methods of scanning include x-ray computed tomography (CT), magnetic resonance imaging (MRI) and functional ... Contemporary scanners can estimate attenuation using integrated x-ray CT equipment, however earlier equipment offered a crude ...
2009). "Biomechanics of dromaeosaurid dinosaur claws: Application of X-ray microtomography, nanoindentation, and finite element ... 1-4 in Cooper, A., Raymond, C., and Team, I.E. (eds.), Antarctica: a Keystone in a Changing World - Online Proceedings for the ...
... (DXA, previously DEXA[1]) is a means of measuring bone mineral density (BMD). Two X-ray beams ... The radiation dose of current DEXA systems is small[24], as low as 0.001 mSv, much less than a standard chest X-ray.[25]. ... In DXA, bone mineral content (measured as the attenuation of the X-ray by the bones being scanned) is divided by the area (also ... Dual-energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology. ...
X-ray microtomography. *Electron beam computed tomography. *Cone beam computed tomography. Targets. *Coronary *Calcium scan ...
Time-of-flight PET makes use of very fast gamma-ray detectors and data processing system which can more precisely decide the ... Alternative methods of scanning include x-ray computed tomography (CT), magnetic resonance imaging (MRI) and functional ... Contemporary scanners can estimate attenuation using integrated x-ray CT equipment, in place of earlier equipment that offered ... radiation dosage for other medical procedures range from 0.02 mSv for a chest x-ray and 6.5-8 mSv for a CT scan of the chest.[ ...
of a ray at position, on the projection at angle θ. {\displaystyle \theta }. , is given by the line integral: p. θ. (. r. ). = ... 3). In X-ray CT, the line integral represents the total attenuation of the beam of x-rays as it travels in a straight line ... "Fast and flexible X-ray tomography using the ASTRA toolbox". Optics Express. 24 (22): 35-47. Bibcode:2016OExpr..2425129V. doi: ... but some of the terms and physical descriptions refer directly to the reconstruction of X-ray computed tomography. ...
In this situation, mobile X-ray equipment is used to obtain a lying down chest x-ray (known as a "supine film"). As a result, ... In a posteroanterior (PA) view, the x-ray source is positioned so that the x-ray beam enters through the posterior (back) ... In anteroposterior (AP) views, the positions of the x-ray source and detector are reversed: the x-ray beam enters through the ... "Chest X-ray quality - Projection". Radiology Masterclass. Retrieved 27 January 2016.. *^ Bush, A; Gray, H; Denison, DM ( ...
... as an alternative to diagnostic cardiac catheterization which involve risks including x-ray radiation exposure, 3) to obtain ...
X-ray microtomography. *Electron beam tomography. Targets. *Coronary *Calcium scan. *CT angiography ...
VC provides clearer, more detailed images than a conventional x-ray using a barium enema, sometimes called a lower ... that ultra-low dose VC can be just as effective in demonstrating bowel disease due to the great difference in x-ray absorption ... X-ray microtomography. *Electron beam tomography. Targets. *Coronary *Calcium scan. *CT angiography ...
X-ray microtomography. *Electron beam tomography. Targets. *Coronary *Calcium scan. *CT angiography ...
X-ray microtomography. *Electron beam tomography. Targets. *Coronary *Calcium scan. *CT angiography ...
The first X-ray microtomography system was conceived and built by Jim Elliott in the early 1980s. The first published X-ray ... Play media Play media X-ray microtomography, like tomography and X-ray computed tomography, uses X-rays to create cross- ... For X-ray microtomography, powerful open source software is available, such as the ASTRA toolbox. The ASTRA Toolbox is a MATLAB ... X-Ray+Microtomography at the US National Library of Medicine Medical Subject Headings (MeSH) Dame Carroll JR, Chandra A, Jones ...
"X-ray computed microtomography of Megachirella wachtleri". Scientific Data. 5: Article number 180244. Bibcode:2018NatSD... ... 2018) perform X-ray scans at the micron scale of the holotype specimen of Megachirella wachtleri. Fossil trackways probably ... Dennis F. A. E. Voeten; Tobias Reich; Ricardo Araújo; Torsten M. Scheyer (2018). "Synchrotron microtomography of a Nothosaurus ... utilizing both X-ray and neutron computed tomography, is published by Jones et al. (2018). A study on the anatomy of the ...
X-ray microtomography and segmentation of phase contrast images. Titre. X-ray microtomography and segmentation of phase ...
In situ analysis of garnet inclusion in diamond using single-crystal X-ray diffraction and X-ray micro-tomography [In situ ... In addition, various X-ray spectroscopy techniques (e.g. X-ray emission and X-ray Raman) are employed for measuring electronic ... x-ray absorption fine structure spectroscopy; x-ray fluorescence microprobe analysis; and microtomography. A proposal-based, ... Imaging in 3D under pressure: a decade of high-pressure X-ray microtomography development at GSECARS. Journal Article Yu, Tony ...
... ELETTRA with the town of Trieste in the ... The objective of our visit to ELETTRA was to use synchrotron X-ray phase contrast micro tomography (PHC microCT) to visualize ...
Synchrotron X-ray computer microtomography was used to analyze the microstructure of rose peduncles. Samples from three rose ... Synchrotron X-ray computer microtomography was used to analyze the microstructure of rose peduncles. Samples from three rose ... The results indicate that synchrotron X-ray computer microtomography is well suited for three-dimensional visualization of the ... However, in its current technique, synchrotron X-ray computer microtomography is not really non-destructive but induce tissue ...
X-ray microtomography has been utilized for the observation of ductile fractures in an aluminum alloy with an Al/Al-Si dual ... N2 - X-ray microtomography has been utilized for the observation of ductile fractures in an aluminum alloy with an Al/Al-Si ... AB - X-ray microtomography has been utilized for the observation of ductile fractures in an aluminum alloy with an Al/Al-Si ... abstract = "X-ray microtomography has been utilized for the observation of ductile fractures in an aluminum alloy with an Al/Al ...
Phase-contrast microtomography using an X-ray interferometer having a 40-$μ$m analyzer. A. Momose, I. Koyama, Y. Hamaishi, H. ...
This paper presents the first application of high-energy X-ray microtomography to the microstructure of steel in the semi-solid ... Determination of quantity and localization of liquid in the semi-solid state using both 3D X-ray microtomography and 2D ... Determination of quantity and localization of liquid in the semi-solid state using both 3D X-ray microtomography and 2D ... Quantification and localization of the liquid zone of partially remelted M2 tool steel using X-ray microtomography and scanning ...
Segmentation of X-ray microtomography images of soil using gradient masks. S Schl ter, U Weller, HJ Vogel ... In situ visualization and quantification of three-dimensional root system architecture and growth using X-ray computed ...
Other new tools include X-ray computed tomography (XCT) and X-ray computed microtomography. Studies of the Apollo samples using ...
Visualizing tephra deposits and sedimentary processes in the marine environment: The potential of X-ray microtomography. Griggs ...
Reconciling X-ray microtomography of recent fossils and paleogenetics: Simple technical solutions and good practices. In 5th ... Effect of X-ray irradiation on ancient DNA in sub-fossil bones - Guidelines for safe X-ray imaging. Scientific Reports, 6: ...
Reconciling X-ray microtomography of recent fossils and paleogenetics: Simple technical solutions and good practices. In 5th ... Effect of X-ray irradiation on ancient DNA in sub-fossil bones - Guidelines for safe X-ray imaging. Scientific Reports, 6: ...
A novel technique combining high-resolution synchrotron X-ray microtomography and x-ray diffraction for characterization of ... T. Connolley, D. Nash, J.-Y. Buffière, F. Sharif, P. E. McHugh (2007). X-ray micro-tomography of a coronary stent deployed in ... 2. Time-Resolved and Stroboscopic X-ray Diffraction. X-ray diffraction is a core tool for the study of deformation in metallic ... "Characterisation of short fatigue cracks in titanium alloy IMI 834 using X-ray microtomography" Acta Materialia 99: 49-62 ...
X-ray analytical techniques are integral to R&D, production process control and quality assurance of such materials. ... X-ray CT. CT Lab GX. High-speed, stationary sample microtomography of large samples ... XRT (X-ray topography) can be employed to investigate crystalline defects and X-ray Reflectometry (XRR) to measure layer ... configured with either single or dual microfocus sealed tube X-ray sources and an extremely low noise direct X-ray detection ...
We invite you to view this short video about the Rigaku nano3DX X-ray microscope for microtomography of large samples at high ... An introduction to the X-ray computed tomography (CT) technique. Designed to show how X-ray CT works and how it can be applied ... This webinar will discuss basics of X-ray computed tomography and how to apply X-ray CT methods to soft materials. Additionally ... X-ray imaging products from Rigaku Sobrescribir enlaces de ayuda a la navegación. * Inicio - ...
Rigaku makes X-ray diffraction and X-ray fluorescence instrumentation for materials characterization and elemental analysis at ... X-ray CT. CT Lab GX. High-speed, stationary sample microtomography of large samples ... Rigaku makes X-ray diffraction (XRD) and X-ray fluorescence (XRF) instrumentation for material characterization and element ...
X-ray CT. CT Lab GX. High-speed, stationary sample microtomography of large samples ...
The route to shear failure in a non-porous rock revealed by X-ray microtomography Neelima Kandula, Francois Renard, Jerome ...
Synchrotron-based computed microtomography (mu CT) of aggregates was analyzed in terms of porosity, connectivity, tortuosity, ... Additionally, X-ray fluorescence was used to evaluate the elemental composition of the soil aggregates. All liming effects were ... Lime application effects on soil aggregate properties: Use of the mean weight diameter and synchrotron-based X-ray mu CT ...
X-ray microtomography under high pressure Advances in High-Pressure Mineralogy. Effect of Temperature on the Partition of ... X-ray study of holdenite, mooreite and torreyite Joan Prewitt-Hopkins Joan Prewitt-Hopkins ... Joan Prewitt-Hopkins; X-ray study of holdenite, mooreite and torreyite. American Mineralogist 1949;; 34 (7-8): 589-595. doi: ...
Rigaku has a powerful X-ray source and optimized analysis tools for operand analysis of laminated batteries, coin cells and all ... Microtomography (X-ray CT). *Microdiffraction. *Narcotics / Illegal drugs. *Particle size and shape ... X-ray CT, Computed tomography. CT observation of a laminated battery cell by X-ray microscopy. ... In-situ X-ray diffraction phase analysis of lithium-ion batteries. Operando measurement of laminated lithium ion battery using ...
Non-uniform temperature distribution in Li-ion batteries during discharge-A combined thermal imaging, X-ray micro-tomography ...
X-ray Nano and Micro-Tomography, and utilising synchrotron and neutron diffraction facilities) assisted me greatly in achieving ...
... where they analysed them using X-ray diffraction, backscattered electron microscopy, and X-ray microtomography. ...
Microtomography (X-ray CT). *Microdiffraction. *Narcotics / Illegal drugs. *Particle size and shape ... configured with either single or dual microfocus sealed tube X-ray sources and an extremely low noise direct X-ray detection ... Compact 2D X-ray camera with micron and sub-micron resolution for imaging ... Small and wide angle X-ray scattering instrument designed for nano-structure analyses ...
These inspections can involve optical and electron microscopy of cross sections-and sometimes high-energy X-ray microtomography ...
Imaging of metastatic lymph nodes by X-ray phase-contrast micro-tomography. Research output: Contribution to journal › Journal ...
X‐ray micro‐tomography systems often suffer severe ring artifacts in reconstructed images. These artifacts are caused by ...
X-ray microtomography-based atlas of mouse cranial development  Matula, Jan; Tesařová, Markéta; Zikmund, Tomáš; Kaucká, ... X-ray microtomography (CT) has become an invaluable tool for non-destructive analysis of biological samples in the field of ...
This problem will be addressed by quantifying hydraulic connections in wood based on X-ray computed microtomography, which is a ...
  • This technology is known as X-ray micro-tomography to delineate the method as a form of X-ray microscopy that uses tomographic reconstruction techniques to build three-dimensional images of micro-structure. (sae.org)
  • Characterization of cold spray titanium deposits by X-ray microscopy and microtomography. (nih.gov)
  • In this study, the unique capability of the X-ray microscopy and microtomography is utilized to visualize the internal structure of deposited material. (nih.gov)
  • Our research and development of 3D x-ray microscopy started in the early 1980s. (bruker.com)
  • Qualitative and quantitative analyses to determine iron sulphides in roofing slates are usually conducted using transmitted and reflected light microscopy, and X-ray diffraction techniques. (lyellcollection.org)
  • The results obtained by tomographic observations were subsequently verified by optical microscopy, X-ray powder diffraction and scanning electron microscopy, as well as energy-dispersive X-ray spectroscopy analyses. (lyellcollection.org)
  • X-ray fluorescence microscopy and microspectroscopy use very fine high-quality beams, focused on extremely small areas within heterogeneous materials. (esrf.eu)
  • With the recent development and realization of in vivo tomographic X-ray microscopy for the study of lung physiology at the micrometer scale [1] we are now able to study a variety of phenomena that take place in the mammalian lung, or more precisely, in a murine and rat animal model. (psi.ch)
  • Recent developments in synchrotron based X-ray tomographic microscopy helped us to overcome these limitations. (psi.ch)
  • Volumetric lung datasets of fresh post-mortem murine lungs with micrometer spatial and sub-second temporal resolutions at different pressure levels are nowadays routinely acquired using synchrotron propagation based phase contrast X-ray tomographic microscopy at the TOMACT beamline of the Swiss Light Source [1]. (psi.ch)
  • merging X-ray phase microtomography, magnetic resonance microscopy and histology. (scicombinator.com)
  • We demonstrate that for human cerebellum grating-based X-ray phase tomography shows complementary contrast to magnetic resonance microscopy and histology. (scicombinator.com)
  • This book contains state-of-the-art reviews and up-to-date progress reports in the field of X-ray microscopy and spectromicroscopy, including related new X-ray optics and X-ray sources. (springer.com)
  • A new technique called synchrotron X-ray tomographic microscopy (SRXTM) allows for detailed three-dimensional scanning of fossils. (wikipedia.org)
  • However, the use of computerized microtomography (CMT) allows the analysis of samples in 3D without any damage to them, also, it has been widely used in the characterization of materials manufactured by powder metallurgy mainly, because of the good contrast obtained between the solid and porous phases 14 , 15 . (scielo.br)
  • In the context of materials science, X-ray phase-contrast imaging and tomography have particular value in the 2D and 3D characterization of low-density materials, the detection of cracks and voids and the analysis of composites and multiphase materials where the different components have similar X-ray attenuation coefficients. (mdpi.com)
  • Characterization of Zn-Substituted Carbonated Apatite Implanted in Rat Tibia by Synchrotron Radiation X-Ray Microtomography and 3D Image Analysis. (cambridge.org)
  • Pyrz, R., "Application of X-Ray Microtomography to the Study of Polymer Composites," SAE Technical Paper 1999-01-5614, 1999, https://doi.org/10.4271/1999-01-5614 . (sae.org)
  • Results from magnetic resonance imaging (MRI) were compared with results from a novel application of X-ray microtomography (XμT) to track the movements of embedded glass microsphere tracers as the model tablets swelled. (hud.ac.uk)
  • A team from ESPCI, CNRS and Saint-Gobain studied the microstructure formation in a molten silicate glass during high-temperature heat treatment using X-ray microtomography at beamline ID19. (esrf.eu)
  • ID19 is a hard X-ray beamline mainly devoted to (in situ) microtomography and high-speed radiography, with an intensive use of X-ray phase contrast. (esrf.fr)
  • Our first explorations of the application of synchrotron x-ray microtomography (SRXTM) to paintings studies in collaboration with TOMCAT beamline at PSI Villigen have shown that this technique, combined with advanced image processing, allows the study of ground layer porosity at submicrometer scale. (sik-isea.ch)
  • The hard X-ray beamline 8.3.2 at the Advanced Light Source enables imaging of samples at high temperatures and pressures, with mechanical loading and other realistic conditions using environmental test cells. (spiedigitallibrary.org)
  • These are designed for X-ray imaging experiments, especially computed tomography, at the medium-length beamline at the SPring-8 synchrotron radiation facility. (iucr.org)
  • The evolving dendritic microstructure was visualized using synchrotron X-ray imaging at the beamline ID19 (ESRF, France). (degruyter.com)
  • Furthermore, microtomography images confirmed the experimental results for porosity measurements in which helium (compared with nitrogen) as carrier gas significantly decreases porosity in cold spray CP titanium. (nih.gov)
  • The compressive strength and the porosity of these samples was investigated before and after compression tests through X-ray microtomography. (scielo.br)
  • The X-ray micro-tomography (μ-XRCT) measurements were utilized to create three-dimensional semi-transparent images of tektites in order to receive information about their porosity. (geoscienceworld.org)
  • Five sets of functionalized calcium carbonate tablets with a target porosity of 45%-65% were prepared in 5% steps and characterized using terahertz time-domain spectroscopy and X-ray computed microtomography. (aalto.fi)
  • The middle layer however shows low and non-connected porosity at the resolution level of the x-ray tomography images, so that few direct transport paths through the entire ground layer exist. (sik-isea.ch)
  • This work presents a development system to study fluorescence microtomography at the X-Ray Fluorescence Facility (D09B-XRF) at the Brazilian Synchrotron Light Laboratory (LNLS), Campinas, Brazil. (actapress.com)
  • The elemental map of iron, copper and zinc were obtained by non-destructive X-Ray fluorescence microtomography. (actapress.com)
  • Three-dimensional quantitative textural analysis of metamorphic rocks using high-resolution computed X-ray tomography: Part I. Methods and techniques. (equisetites.de)
  • Multiple X-ray computed tomographs (with quantitative mineral density calibration ) stacked to form a 3D model. (wikipedia.org)
  • Additionally, we use X-ray synchrotron phase-contrast microtomography to visualize and study the anatomy of the tail and inner ear in these animals in comparison with closely related arboreal species ( Calumna tigris and Anolis carolinensis ), to better understand the morphological specializations associated with this unique mode of locomotion. (royalsocietypublishing.org)
  • Recent advances in high-resolution three-dimensional X-ray CT imaging have made it possible to visualize fluid configurations during multiphase displacement at the pore-scale. (imperial.ac.uk)
  • The cone-beam system is based on a 2D X-ray detector (camera) and an electronic X-ray source, creating projection images that later will be used to reconstruct the image cross-sections. (wikipedia.org)
  • The technology uses an X-ray cone beam, which will pass through the sample to a detector. (stinstruments.com)
  • Cone-beam X-ray microtomography attracts increasing attention due to its applications in biomedi- cal sciences, material engineering, and industrial nondestructive evaluation. (scribd.com)
  • In this article, we reformulate a generalized Feldkamp cone-beam image reconstruction algorithm, utilize curved voxels and mapping tables, improve the reconstruction efficiency by an order of magnitude relative to a direct implementation of the standard algorithm, and demonstrate the feasibility with numerical simulation and experiments using a prototype cone-beam X-ray microtomographic system. (scribd.com)
  • 1999). With an X-ray point source and a 2D- detector array, X-rays intersecting a spherical specimen form a cone, giving rise to the nomenclature cone-beam. (scribd.com)
  • 1988). We de- veloped a prototype cone-beam X-ray microtomographic system (Cheng et al. (scribd.com)
  • In very simple terms, X-ray microtomography can be thought of as creating a three-dimensional map of the relative atomic density of the sample under evaluation. (pharmtech.com)
  • 2018) is an interesting application of a relatively new technique, X-ray computed micro-tomography (MCT), for the determination of iron sulphides in roofing slates. (lyellcollection.org)
  • 2018) perform X-ray scans at the micron scale of the holotype specimen of Megachirella wachtleri. (wikipedia.org)
  • X-ray microtomography is a relatively new approach to imaging the internal structure of solid dosage forms. (pharmtech.com)
  • The X-ray microtomography approach used in this work is an extension of the computer aided tomography (CAT) medical imaging technique commonly used in hospitals. (pharmtech.com)
  • Recent progress in synchrotron X-ray microtomography technology has caused a revolution in imaging methods used to study the dermal skeletons of early vertebrates. (diva-portal.org)
  • We conclude that x-ray phase-contrast imaging can accurately detect density variations to obtain information regarding lymph node involvement previously inaccessible with standard absorption x-ray imaging. (ku.dk)
  • Micro computed tomography or 'micro-CT' is x-ray imaging in 3D, by the same method used in hospital CT (or 'CAT') scans, but on a small scale with massively increased resolution. (bruker.com)
  • The purpose of this work is to present a protocol to characterize the complex wetting conditions of hydrocarbon reservoir rock using pore-scale three-dimensional X-ray imaging at subsurface conditions. (jove.com)
  • X-ray imaging in absorption contrast mode is well established for hard tissue visualization. (spie.org)
  • Using the laboratory-based microtomography (μCT) system nanotom m (GE Sensing and Inspection Technologies GmbH, Wunstorf, Germany) and synchrotron radiation at the Diamond-Manchester Imaging Branchline I13-2 (Diamond Light Source, Didcot, UK), we have acquired 3D data with a resolution down to 0.45 μm for visualization of a human cerebellum specimen down to cellular level. (spie.org)
  • Liu Y, Nelson J, Holzner C, Andrews JC, Pianetta P (2013) Recent advances in Synchrotron-based hard X-ray phase contrast imaging. (springer.com)
  • A phase-contrast X-ray microtomography system using the Talbot imaging has been built at the SPring-8 synchrotron radiation facility. (biologists.org)
  • Phase-contrast X-ray CT is an emerging imaging technique that makes use of X-ray phase-shift in biological tissues ( Momose, 2005 ). (biologists.org)
  • Phase-contrast X-ray imaging makes use of phase shift of X-rays. (biologists.org)
  • X-ray fluorescence tomography of biological specimens has been viewed as impractical-and perhaps even impossible for routine application-due to the large time required for scanning tomography and significant radiation dose delivered to the specimen during the imaging process. (pnas.org)
  • Here we develop X-ray fluorescence tomography with extremely high resolution-400 nm-and apply it to subcellular imaging of a whole cell of the freshwater diatom species Cyclotella meneghiniana . (pnas.org)
  • High resolution synchrotron microtomography capable of revealing microvessels in three dimensional (3D) establishes distinct imaging markers of mouse kidney disease strongly associated to renal tubulointerstitial (TI) lesions and glomerulopathy. (nature.com)
  • see Fig. S1 , for example showing an X-ray image of a nanofabricated Au test pattern) with very fast imaging acquisition and processing. (nature.com)
  • The ESRF also offers complementary techniques such as X-ray diffraction topography and phase-contrast imaging, which exploits the coherence of the beam. (esrf.eu)
  • X-ray microtomography extends the capacities of X-ray imaging to produce pictures of ultra-high resolution and contrast. (esrf.eu)
  • Using three-dimensional synchrotron X-ray phase-contrast imaging, we demonstrate a set of unique specializations in the tail associated with the use of the tail during locomotion. (royalsocietypublishing.org)
  • X-ray scattering imaging can give access to microstructural information for features well below the setup resolution, in a large field of view, making this technique very interesting for the investigation of new materials. (psi.ch)
  • The objective of this study is to extend 2D omni-directional X-ray scattering imaging to 3D without need for a priori knowledge on the scatterer shape and/or space organization. (psi.ch)
  • In this work, X ray dark field imaging based on dual phase grating interferometry is used to access unresolvable structural information in such materials, which is otherwise inaccessible to conventional absorption-based full field imaging. (psi.ch)
  • Imaging modalities including magnetic resonance imaging and X-ray computed tomography are established methods in daily clinical diagnosis of human brain. (scicombinator.com)
  • X-ray phase-contrast imaging and tomography make use of the refraction of X-rays by the sample in image formation. (mdpi.com)
  • This provides considerable additional information in the image compared to conventional X-ray imaging methods, which rely solely on X-ray absorption by the sample. (mdpi.com)
  • In addition, a meshfree method is presented to quantify the strain evolution of the samples, based on the particle translations and particle rotations obtained from the X-ray imaging and particle-tracking techniques. (edu.hk)
  • Real time observation of binder jetting printing process using high-speed X-ray imaging. (nih.gov)
  • Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging. (nih.gov)
  • High-speed X-ray imaging of the Leidenfrost collapse. (nih.gov)
  • Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging. (nih.gov)
  • Ultrafast X-ray imaging of laser-metal additive manufacturing processes. (nih.gov)
  • Data and videos for ultrafast synchrotron X-ray imaging studies of metal solidification under ultrasound. (nih.gov)
  • Synchrotron x-ray imaging visualization study of capillary-induced flow and critical heat flux on surfaces with engineered micropillars. (nih.gov)
  • Real-time monitoring of laser powder bed fusion process using high-speed X-ray imaging and diffraction. (nih.gov)
  • In situ observation of fracture processes in high-strength concretes and limestone using high-speed X-ray phase-contrast imaging. (nih.gov)
  • With the advent of high-resolution time-resolved three-dimensional X-ray imaging, all the terms in this expression can be measured directly. (imperial.ac.uk)
  • The Journal of X-Ray Science and Technology is an international journal designed for the diverse community (biomedical, industrial and academic) of users and developers of novel x-ray imaging techniques. (iospress.com)
  • Areas such as x-ray microlithography, x-ray astronomy and medical x-ray imaging as well as new technologies arising from fields traditionally considered unrelated to x rays (semiconductor processing, accelerator technology, ionizing and non-ionizing medical diagnostic and therapeutic modalities, etc.) present opportunities for research that can meet new challenges as they arise. (iospress.com)
  • A generally applicable calibration algorithm is developed for dual energy material decomposition in digital x-ray based imaging. (iospress.com)
  • X-ray imaging detectors with an identical phosphor and a CCD chip but employing lens- and fiber-coupling between them have been compared. (iucr.org)
  • Objectives In this study we investigated the potentials of dual-modal CT-MRI macrophage tracking, by a intratracheal instillation of a mixture of either gadolinium nanoparticles or barium sulphate loaded alveolar macrophages into mice of an allergic airway inflammation (asthma) model and their respective healthy control, imaged with Synchrotron X-rays microtomography (SR μCT) and Micro Magnetic Resonance Imaging (μMRI). (diva-portal.org)
  • The re-solidification process was visualized by high-speed X-ray imaging at the European Synchrotron Radiation Facility (ESRF, Grenoble, France). (degruyter.com)
  • X-ray microtomography is a nondestructive technique that has a high penetration ability and provides a reasonable level of resolution (~5-20 μm). (pharmtech.com)
  • High-resolution X-ray CT (Computed Tomography) is a completely nondestructive technique for visualizing features in the interior of opaque solid objects, and for obtaining digital information on their 3-D geometries and properties. (equisetites.de)
  • reported X-ray microscopic computed tomography (microCT) at 8 µm resolution. (biologists.org)
  • physics.nist.gov/PhysRefData/XrayMassCoef/tab3.html ), the greater the number of diffraction and scattering events, thereby weakening the X-ray beam that reaches the detector. (pharmtech.com)
  • Even if several other techniques allow a structural determination of surfaces, X-ray diffraction offers unique possibilities. (esrf.eu)
  • Surface X-ray diffraction is not limited to free surfaces under UHV conditions but it can be applied with success to study solid interfaces. (esrf.eu)
  • The aim of our study is to obtain, as accurately as possible, porcine ocular tissue visualization using microtomography (micro-CT) method. (ovid.com)
  • However, this paper presents X-ray computed micro-tomography as a new laboratory method in this field, which also allows for 3D visualization and analysis of iron sulphide distribution in roofing slates. (lyellcollection.org)
  • This protocol is presented to characterize the complex wetting conditions of an opaque porous medium (hydrocarbon reservoir rock) using three-dimensional images obtained by X-ray microtomography at subsurface conditions. (jove.com)
  • In present study the transmission x-ray microscope (TXM) method was validated in microstructural study of mudstone shale sample. (omicsonline.org)
  • Fragmentation and limits to dynamical scaling in viscous coarsening: an interrupted in situ X-ray tomographic study, D. Bouttes (a), E. Gouillart (b), E. Boller (c), D. Dalmas (b), D. Vandembroucq (a), Physical Review Letters , 112, 245701 (2014) . (esrf.eu)
  • Therefore, the purpose of this study was, in a blinded manner, to investigate whether malignancy could be revealed by non-invasive x-ray phase-contrast tomography in lymph nodes from breast cancer patients. (ku.dk)
  • It is applied to study a dog-bone sample, which is made of spheroidal graphite cast iron, loaded in tension and imaged via in situ microtomography. (archives-ouvertes.fr)
  • X-Ray micro CT has been used to study the shale structure at meso scale and observe the evolution of 3D crack networks in samples of shale under uniaxial compression at different levels of load. (stinstruments.com)
  • An experimental study of synchrotron-based X-ray PPCT combined with the presented phase-attenuation-duality phase retrieval (PR) algorithm was implemented with the agalloch eaglewood specimens at different stages. (springer.com)
  • In this study we used soil 2D zymography and X-ray computed tomography (μCT) to assess the relationship between enzymes and pores. (msu.edu)
  • Small- and wide-angle X-ray scattering (SAXS and WAXS) use the high brilliance of an undulator source to study condensed matter samples in liquid or solid form. (esrf.eu)
  • Study of degradation processes in engineering materials using X-ray (micro)tomography and dedicated volumetric image processing and analysis. (lodz.pl)
  • A previous X-ray absorption study of tile adhesive mortars identified a new phenomenon during drying, namely the movement of small cement particles from the interior of the specimen to its surface. (nist.gov)
  • The goal of the present study was to observe this void instability and growth in real time by using three-dimensional X-ray microtomography. (nist.gov)
  • After study of some simple test cases, results from large scale simulations of fluid flow through digitized Fontainbleau sandstone, generated by x-ray microtomography, are presented. (nist.gov)
  • Jones says x-ray microtomography can also be used to study materials including ceramics, paper and minerals. (abc.net.au)
  • These pixel sizes have also resulted in the terms high-resolution X-ray tomography, micro-computed tomography (micro-CT or µCT), and similar terms. (wikipedia.org)
  • Digital detectors with small pixel pitches and micro-focus x-ray tubes are usually employed to yield in high resolution images. (wikipedia.org)
  • In order to overcome this difficulty X-ray micro-tomography is applied to extract the 3-D information that may be used for micromechanical modelling purposes. (sae.org)
  • A micro-focus x-ray source illuminates the object and a planar x-ray detector collects magnified projection images. (bruker.com)
  • The X-ray micro tomographic equipment, developed at Dept. of Physics, Building 307, has been extensively tested on extracted human teeth and human fetus in cooperation with the School of Dentistry, Panum Institute. (dtu.dk)
  • X-ray micro CT (microtomography) uses the same technology as an ordinary CT (CAT) scan in a hospital. (stinstruments.com)
  • How does X-ray micro CT work? (stinstruments.com)
  • X-ray micro CT (microtomography) has a resolution in the micrometer range, and can provide both high resolution and a large field of view. (stinstruments.com)
  • What are the advantages of X-ray micro CT scanning? (stinstruments.com)
  • An X-ray micro CT gives you X-ray vision: it offers a non-destructive high resolution look inside your samples. (stinstruments.com)
  • Anything from leaves through polymers to metals can be imaged using X-ray micro CT. (stinstruments.com)
  • X-ray micro CT is a standard tool in the evaluation of bone architecture. (stinstruments.com)
  • X-ray micro CT allows this in a non-destructive manner. (stinstruments.com)
  • In this work we show the potential of X-ray micro-tomography in understanding the mechanism by which salts can damage building materials. (geoscienceworld.org)
  • Neutron and monochromatic X-ray micro-tomography in Application of Accelerators in Research and Industry (AIP Press, New York), in print. (ugent.be)
  • Neutron and monochromatic X-ray micro. (ugent.be)
  • Masschaele B, BAECHLER S, Cauwels P, JOLIE J, Mondelaers W, Dierick M. Neutron and monochromatic X-ray micro-tomography in Application of Accelerators in Research and Industry (AIP Press, New York), in print. (ugent.be)
  • 2019. Spatial patterns of extracellular enzymes: Combining X-ray computed micro-tomography and 2D zymography. (msu.edu)
  • X-ray micro-tomography (micro-CT) is a non-destructive technique which is able to reconstruct the spatial 3D both outer and inner morphology of the scanned sample. (kosekgroup.cz)
  • The X-ray micro-CT also distinguishes the individual phases in the material on the base of their elementary composition and of the different density of the phases. (kosekgroup.cz)
  • 3D micro- and nano-tomography is possible by scanning the X-ray beam across a sample. (esrf.eu)
  • Department of Materials Test Engineering (WPT) at TU Dortmund University uses Deben CT5000TEC stage to perform X-ray micro-tomography. (scientistlive.com)
  • All groups underwent in-vivo X-ray micro-computed tomography scanning at the left proximal tibia every month. (medsci.org)
  • An in-situ triaxial shearing of a quartz sand sample with X-ray micro-tomography scanning is carried out. (edu.hk)
  • Cheng, Z & Wang, J 2019, ' Quantification of the strain field of sands based on X-ray micro-tomography: A comparison between a grid-based method and a mesh-based method ', Powder Technology , vol. 344, pp. 314-334. (edu.hk)
  • X-ray micro-tomography datasets (raw and segmented images) of mixed-wet carbonate reservoir rock (contact angle, 104° ± 26°) at the end of waterflooding. (digitalrocksportal.org)
  • The aim of this research is to experimentally examine the grain-scale mechanical behavior of granular soils and quantitatively investigate its evolution during shear using X-ray micro-tomography. (edu.hk)
  • A miniature triaxial apparatus is developed for the in-situ testing in combination with the X-ray micro-tomography facility. (edu.hk)
  • This article presents a microscale modelling approach coupled with X-ray computed micro-tomography for the evaluation of material properties of polylactic acid (PLA) reinforced by birch pulp fibers under the effect of moisture. (vtt.fi)
  • Element sensitive X-ray micro tomography for determination of the metal diffusion in teeth with amalgam fillings. (ugent.be)
  • High resolution X-ray microtomography images at 15 μm voxel-size were manually segmented. (frontiersin.org)
  • The resolution of the image is determined by the size of the x-ray focal spot, number of projection views per rotation, the detector cell size, and the software algorithms used in image reconstruction. (stinstruments.com)
  • Thus, as in X-ray CT, tomographic reconstruction is feasible from images obtained at different angles of the sample. (biologists.org)
  • The fan-beam system is based on a one-dimensional (1D) X-ray detector and an electronic X-ray source, creating 2D cross-sections of the object. (wikipedia.org)
  • Figure 1: Schematic of X-ray microtomography instrument (I0 = incident beam, ItMay In the Field section5 = transmitted beam). (pharmtech.com)
  • A two-dimensional 'shadow' image is produced by accurately rastering the X-ray beam across the sample. (pharmtech.com)
  • The sample then is carefully moved (usually rotated) relative to the X-ray beam, and the process is repeated to produce additional two-dimensional images from various view points. (pharmtech.com)
  • At BL20B2, an X-ray beam with a cross section of 300 mm (width) by up to 30 mm (height) is available. (iucr.org)
  • X-Ray chemical mapping of garnet shows a network of microchannels that propagate outward from polyphase inclusions. (frontiersin.org)
  • Approach to investigate both the chemical and physical properties with handheld Raman and X-ray CT, respectively, promise the accurate discrimination of the SFs, even if their visual appearance is similar with authentic products. (ajtmh.org)
  • Liu HQ, Ren Y, Guo H, Xue Y, Xie H, Xiao TQ, Wu X (2012) Phase retrieval for hard X-ray computed tomography of samples with hybrid compositions. (springer.com)
  • Our results indicate that the combination approach of visual observation, handheld Raman and X-ray CT is a powerful strategy for nondestructive discrimination of suspect samples. (ajtmh.org)
  • In addition, perspectives on the impact of synchrotron based applications, particularly X-ray absorption spectroscopy, and the role of synchrotron applications in remediation, regulatory, and decision making processes are considered. (elsevier.com)
  • In a closed system, X-ray shielding is put around the scanner so the operator can put the scanner on a desk or special table. (wikipedia.org)
  • In many cases, the production of these images is based on the mathematical procedure tomographic reconstruction , such as X-ray computed tomography technically being produced from multiple projectional radiographs . (wikipedia.org)
  • One contrast enhanced MRA method, projection magnetic resonance digital subtraction angiograph (MRDSA), generates time-resolved angiograms in a manner similar to conventional digital x-ray digital subtraction angiography. (iospress.com)
  • Cnudde V, Boone MN (2013) High-resolution X-ray computed tomography in geosciences: a review of the current technology and applications. (springer.com)
  • The Digital Morphology library is a dynamic archive of information on digital morphology and high-resolution X-ray computed tomography of biological specimens. (equisetites.de)
  • X-ray fluorescence tomography promises to map elemental distributions in unstained and unfixed biological specimens in three dimensions at high resolution and sensitivity, offering unparalleled insight in medical, biological, and environmental sciences. (pnas.org)
  • A common method to achieve high spatial resolution is using X-ray tubes with a very small focus and magnification technique. (ndt.net)
  • The high flux and brightness of the X-ray beams have allowed researchers to work at environmentally relevant concentrations. (elsevier.com)
  • X-ray CT visualized at least two different types of falsified tablets, one containing many cracks and voids and the other containing aggregates with high electron density, such as from the presence of the heavy elements. (ajtmh.org)
  • Synchrotron sources like the ALS provide high quality X-ray beams, with flux that is several orders of magnitude higher than lab-based sources. (spiedigitallibrary.org)
  • Reduction of Ring Artifacts in High Resolution X-Ray Microtomography Images. (indigo.ca)
  • The capabilities of the CCD such as its good linearity, fast readout and high sensitivity make it a competitive X-ray detector. (iucr.org)
  • The second setup, much more like a clinical CT scanner, is gantry based where the animal/specimen is stationary in space while the X-ray tube and detector rotate around. (wikipedia.org)
  • In one setup, the X-ray source and detector are typically stationary during the scan while the sample/animal rotates. (wikipedia.org)
  • The intensity of the X-rays reaching the detector is controlled by the sample path length and the X-ray attenuation coefficient of the material that it encounters on that path (4). (pharmtech.com)
  • It is common to construct an area X-ray detector with a scintillator, which converts X-rays to visible light, and a camera to observe the scintillation. (iucr.org)
  • The ability to make precise X-ray attenuation measurements on very small volume elements is a developing technology. (sae.org)
  • The first published X-ray microtomographic images were reconstructed slices of a small tropical snail, with pixel size about 50 micrometers. (wikipedia.org)
  • Data processing steps: 1) Filtered x-ray tomography data. (sik-isea.ch)
  • Upscaling ice crystal growth dynamics in snow: rigorous modeling and comparison to 4D X-ray tomography data. (wsl.ch)
  • Near K-edge measurement of the X-ray attenuation coefficient of heavy elements using a tuneable X-ray source based on an electron LINAC. (ugent.be)
  • Of particular significance is the understanding of local coordination environments with the use of X-ray absorption spectroscopy. (elsevier.com)
  • Scanning X-ray fluorescence microprobes have been used to map 2D projected elemental distributions over length scales ranging from under 1 μm to tens of millimetres, covering cells, small multicellular organisms, and larger sectioned specimens. (pnas.org)
  • The resolution and sensitivity of X-ray fluorescence microprobes extends below 60 nm ( 5 ) and several thousand atoms ( 6 ). (pnas.org)
  • This has been done thanks to the unique use of X-ray tomography and the development of new image processing and analysis strategies. (lodz.pl)
  • X-Ray Microtomography Studies of Air-Void Instability and Growth During Drying of Tile Adhesive Mortars. (nist.gov)