Results 311 to 320 of about 1,009,330 (345)
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Journal of Low Temperature Physics, 2012
We present the detection of 5.9 keV X-rays in a silicon wafer utilising an array of frequency multiplexed Kinetic Inductance Detectors. The readout electronics consists of a programmable digital electronics with an integrated 12-bit ADC, operating with a maximum frequency of 100 MHz.
CRUCIANI, ANGELO +5 more
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We present the detection of 5.9 keV X-rays in a silicon wafer utilising an array of frequency multiplexed Kinetic Inductance Detectors. The readout electronics consists of a programmable digital electronics with an integrated 12-bit ADC, operating with a maximum frequency of 100 MHz.
CRUCIANI, ANGELO +5 more
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Advanced X-ray Imaging Technology
2020Since their discovery by Wilhelm Conrad Röntgen in 1895, X-rays have become the most widely available, typically fastest, and usually most cost-effective medical imaging modality today. From the early radiographic approaches using X-ray films as detectors, the portfolio of medical X-ray imaging devices developed into a large range of dedicated ...
Daniela, Pfeiffer +2 more
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Advances in X-ray Analysis, 1979
Element mapping has been so far an analytical field covered by those investigation methods using a scanned particle beam on the excitation side of the specimen. These methods include localized interaction processes, as in the electron microprobe, secondary ion mass spectrometer and Auger electron spectrometer.
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Element mapping has been so far an analytical field covered by those investigation methods using a scanned particle beam on the excitation side of the specimen. These methods include localized interaction processes, as in the electron microprobe, secondary ion mass spectrometer and Auger electron spectrometer.
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X-Ray Imaging: Fundamentals of X-Ray
2019The physical nature and the fundamental properties of X-ray are described. The technologies of major relevance in micro CT for the production of X-ray, especially stationary anode X-ray tubes, and for the detection of radiographic images, especially digital flat panels, are discussed.
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Monochromatic x-ray images of x-ray emitting sources
Applied Physics Letters, 1980A method is demonstrated for obtaining monochromatic aberration-free images of x-ray emitting sources, through the process of double Bragg reflection. Space-resolved ion and temperature distribution in hot plasmas may therefore be obtained.
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Tissue characterization from X-ray images
Medical Engineering & Physics, 1997The study of the fine-scale structure of biological tissues is crucial for diagnosing a wide number of different diseases. In X-ray images, fine structures usually induce a correlation among image gray levels and are commonly perceived as textures. In this paper, we report on a Computer Vision approach to the characterization of biological tissues as ...
BOCCHI, LEONARDO +3 more
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Radiation Protection Dosimetry, 2005
A simulator for X-ray images is presented based on a virtual X-ray source and a virtual human body obtained from tomographic slices. In the simulator it is possible to modify the tube potential, the anodic current, the exposure time, the filtration and some geometric parameters such as source-skin distance, orientation and field size.
FANTI, VIVIANA +5 more
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A simulator for X-ray images is presented based on a virtual X-ray source and a virtual human body obtained from tomographic slices. In the simulator it is possible to modify the tube potential, the anodic current, the exposure time, the filtration and some geometric parameters such as source-skin distance, orientation and field size.
FANTI, VIVIANA +5 more
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X-ray imaging for palaeontology
The British Journal of Radiology, 2004Few may be aware that X-ray imaging is used in palaeontology and has been used since as early as 1896. The X-raying, preparation and exposure of Hunsrück slate fossils are described. Hospital X-ray machines are used by the author in his work. An X-ray is vital to provide evidence that preparation of a slate is worthwhile as well as to facilitate ...
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Enhanced stereographic x-ray images
2002This project extends previous work on stereographic projection of 2D x-ray images and aims to overcome a number of problems, namely: confusing stereo cues; distortion between stereo pairs; and increased radiation exposure from additional x-ray images. Images are distortion corrected and a polygonal representation of a bone fitted to the x-ray image, to
Warren J, Viant, James W, Ward
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Stereoscopic x-ray image processing
2001A three-step stereoscopic image-processing algorithm is proposed in order to improve image quality and depth perception of stereoscopic radiographs taken with C-arm equipment. The steps include illumination correction, geometry conversion and screen parallax adjustment. Flipping of stereoscopic radiographs is also discussed.
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