منابع مشابه
He Ions for 3D Imaging
A theoretical model of He ion imaging for acquisition of a stack of image slices with applications in 3D tomography previously showed that ion implantation accumulates with each image scan [1]. The accumulated ion implantation can result in damage to the target depending on image dose per slice and slice thickness. The imaging ion energy and incidence angle will also influence the accumulated i...
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Statistical mechanics deals with systems having a large number of particles. In statistical mechanics, large scale properties (such as temperature, pressure etc) are studied by applying probability theory to a large number of small particles. Hence this is a probabilistic theory and the behaviour of all of the system is studied using the average individual behaviour of particles. With small num...
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We study the multiple ionization and fragmentation of CO in collisions with slow He ions. Correlated measurements of all fragment ions and the projectile final charge state were performed using our coincidence COLTRIMS imaging technique coupled to projectile charge state separation. Complete fragmentations of CO, following double electron capture, into C+O with a total charge of 4 were investig...
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In recent years, to reduce the complexity of implementation, the use of 2D arrays with restricted row-column addressing has been considered for 3D ultrasound imaging. In this paper, two methods of adaptive beamforming based on the minimum variance method are represented in such a way that the computational load is much less than using the full adaptive beamforming method. In both proposed metho...
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Introduction: Geometric distortion is a major shortcoming of magnetic resonance imaging (MRI), which has an important influence on the accuracy of volumetric measurements, an important parameter in neurology and oncology. Our goal is to design and construct a new three- dimensional phantom using a 3D printer in order to measure geometric distortion and its reproducibility in...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2014
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927614003225