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Coincidence imaging system with electron optics
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2011Abstract As a part of multiple-detector system for coincidence instrumental neutron activation analysis (CINAA) a new method which includes a devoted electron optic unit has been built. In order to achieve higher sensitivity, enhanced contrast and higher spatial resolution the new coincidence imaging arrangement newly incorporates to electron optic ...
Martin Kroupa +6 more
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Image Processing by Electron-Optical Techniques
Journal of the Optical Society of America, 1967The use of electron image manipulation and charge-image storage to perform the equivalent of incoherent optical image transformation is described. The technique permits mechanizing negative as well as positive optical aperture functions, and provides the light amplification usually associated with photographic recording.
J. K. Hawkins, C. J. Munsey
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OPTICAL IMAGE INFORMATIVITY IN OPTIC AND ELECTRONIC DEVICES LIMITED BY ABERRATIONS
Journal Scientific and Applied Research, 2020Some interrelations of two dimensional image entropy of optic and electronic devices are developed in this paper. The informativity of the object image is investigated through the use of multi spectral optic system, limited by aberations.
Petar Getsov +2 more
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Optical scattering in camera-based electronic portal imaging
Physics in Medicine and Biology, 1999An investigation of scintillation light scattering within camera-based electronic portal imaging devices is presented. A simple analytical scatter model is adapted for the precise geometries of two different camera-based imaging systems and the results of modelling and experimental measurements are compared.
Partridge, M +2 more
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Electron optical system and image processing
Proceedings of 2011 International Conference on Electronics and Optoelectronics, 2011High-resolution transmission electron microscope provides a powerful tool to study the materials structure down to atomic level. However, as an electron optical system, the condition of obtaining projected structure image of examined samples is severe because of the lens aberration effect. A posterior image processing technique, the image deconvolution,
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Accuracy of image stabilization by an optical-electronic feedback system
Vision Research, 1975Abstract The performance of an optical-electronic image stabilization system is described. The system uses the contact lens-mirror method for eye movement tracking in connection with a feedback principle for image stabilization. Stabilization accuracy is such that the maximum residual image movement is only 0.2′ for one subject, and 0.6′ for another.
R M, Jones, T, Tulunay-Keesey
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Characterization of optical, electronic and topographic images in fatigue research
Image and Vision Computing, 1995The characterization of images containing fatigue manifestations often implies the detection and quantification of thin and elongated objects such as fatigue striations, slip bands and micro cracks. In this paper, we propose a classification of these images in three categories: (1) fractured surface imaging, (2) damaged surface imaging, and (3 ...
Gilles Savary +2 more
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A Hybrid Optical/Electronic Image Correlator
1987The attraction of using optics to perform the cross-correlation of two images, is the ease with which a good quality lens generates a 2-D Fourier transform. This Fourier transform property of the lens is dependent on the use of coherent light to carry the image.
N. Collings +3 more
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Electron Optics of Imaging Energy Filters
1995Inelastic scattering always occurs when charged particles interact with the atoms of an object. Since the inelastic process is delocalized the image formed by the inelastically scattered electrons does not contain much information about the atomic structure of the specimen.
Harald Rose, Dieter Krahl
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Electron Optics of a Photoconductive Image Converter
1969Publisher Summary This chapter elaborates the electron optics of a photoconductive image converter. A demountable system was built in order to investigate the electron optics of the photoconductive image converter. In this system, a weak magnetic lens is included which provides a means of magnification control. An important practical consideration is
M.E. Barnett, C.W. Bates, E. England
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