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Site Details Other Information 
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Visualization Projects
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Click on image to view larger image. Follow the hyperlinks for more images and information about each of the projects. |
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Effect of Atmospheric Aerosols (Environmental Science) Shown is the three-dimensional volume (latitude, longitude and altitude) of the total sulfate burden over North America for a 24 hour period. The image was created with Vis5d, a software package for visualizing meteorological data. Source data for the image was generated from a mathematical model developed at BNL. This model is used to study the effect of atmospheric aerosols on the deviation of the Earth's radiation balance. Aerosol sources in the model include volcanoes, anthropomorphic and industrial and biogenic (dimethylsulfide). Higher concentrations are mapped to darker (red) colors. (Data courtesy of C. Benkovitz, BNL) - enlarge image |
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Parallelized Rendering on a Graphics Cluster (Fluid Dynamics) Shown is an image of an isosurface defined by the interface boundary of the calculation of two fluids mixing. Visualization was performed using Open Inventor on the Visualization Cluster, a linux cluster with ten processors and five graphics cards. Chromium software was used to partition the rendering tasks among the processors for rendering to a single or tiled display. The image indicates a four-processor partition to four tiles. (Data courtesy of J. Glimm, CSC) - enlarge image |
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MRI of Human Brain (Medical Science) This MRI of a human brain was used in a study of the effects of drug dependency in humans. The data was rendered in the Vis5d visualization software package. Volume rendering was used to inspect the internal structure. As Vis5d is primarily used for environmental science studies, this example shows the software's versatility. (Data courtesy of BNL Medical Dept.) - enlarge image |
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Surface Properties of Fe (Nanoscience - Condensed Matter Physics) Shown is the charge density, i.e., the total distribution of electrons, for a surface of iron. In this calculation there are seven iron atoms. Red areas represent higher values of charge density, while blue areas represent lower values of charge density. Similar calculations for the electron spin density, and for both densities with an applied electric field have been performed for iron. Comparison of these results to those for non-magnetic metals will increase our knowledge of the properties which determine whether a metal is or is not magnetic. (Data courtesy of G. Schneider and M. Weinert, Physics) - enlarge image |
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Charge Distribution of a Superconductor (Nanoscience) Magnesium diboride (MgB2) displays superconductivity at the surprisingly high temperature of 39K. MgB2 forms in a hexagonal crystal structure, with the boron atoms arranged in a honeycomb fashion in planes which are structurally the same as graphite. The magnesium atoms are located in the hollow positions in parallel planes above and below. Shown are isosurfaces of the difference charge density in the boron plane. (The difference density is obtained by subtracting the density of isolated atoms from that of the compound.) The red areas between the atoms show clearly the build up of the bond charge. Results have been compared to transmission electron microscope and synchrotron x-ray measurements performed at Brookhaven. The calculations agree with the experiments to within 3%. (Data courtesy of J. Davenport, CSC) - enlarge image |
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MRM of Mouse Brain (Medical Science) The image is a volume rendering of an excised mouse brain. The data was acquired using high-resolution magnetic resonance microscopy (MRM) with a spatial resolution of 47x47x47 microns cubed. Imaging was performed on a 17 Tesla vertical MRM instrument at the Center for Structural Biology, University of Florida. Data visualization was accomplished with VTK (Visualization Tool Kit). (Data courtesy of Drs. Grant (UF), Blackband (UF), Zhang (BNL), Benveniste (BNL)) - enlarge image |
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Collisions of Polarized Protons (Accelerator Physics) An experiment at the Relativistic Heavy Ion Collider (RHIC) will use polarized protons, not heavy ions, to study the fundamental structure of the proton's spin. Special polarization magnets will align each proton's spin vector with respect to the beam path. The image shows one proton in each of the two colliding beams. Shown are each proton's path (red and magenta lines), spin vector (yellow and blue arrows), and the traces (green and cyan lines) of the spin vector's tip, as the protons move through the polarization magnets (not shown). Each proton's spin vector increasingly precesses and finally becomes aligned to the proton's path shortly before collision (represented by the orange sphere). (Data courtesy of A. Luccio, CAD) - enlarge image |
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RHIC Event (Nuclear Physics) The image shows the detection of a collision of two gold nuclei. There are 2000 particle tracks, colored according to ionization values. (Data courtesy of STAR Experiment, Physics) - enlarge image |
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Osteoporosis Study (Computed Microtomography) A microtomography facility at the Brookhaven National Synchrotron Light Source (NSLS) combines rapid image reconstruction using high speed parallel computing resources, with theoretical modeling and high-bandwidth networking. Three-dimensional volumes with a spatial resolution of two microns are used as input to quantitative calculations to improve our knowledge in a variety of disciplines. Shown is a section (1mm across) from a thigh bone of a rat suffering from osteoporosis. The porous nature of the bone's central portion is indicative of the disease. Laboratory studies on rats expedite finding treatments for humans, but the small bone size necessitates high resolution X-ray imaging. (Data courtesy of K. Jones, BNL) - enlarge image |
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String Theory (Theoretical Physics) String theory is the leading candidate for a theory beyond the Standard Model, including gravity. At very short distances (10-34 meters), the particle picture of the world gives way to one of one-dimensional objects. The theory is only consistent in ten dimensions: three spatial, one time, and six dimensions curled up in a small space not directly seen. This internal space yields important predictions for elementary particle properties, such as mass and chirality. A magnification of 1034 gives images like the one shown above (called the dervish). It represents an internal six-dimensional space after taking slices through three dimensions and forming a surface of zeros from a fifth order polynomial. (Data courtesy of M. McGuigan, CSC) - enlarge image |
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Lattice QCD (Theoretical Physics) Four separate three-dimensional slices of the topological charge density calculated using lattice QCD with red indicating high values of the topological charge. This density characterizes the vacuum configurations of QCD. (Data courtesy of M. McGuigan CSC and Taku Izubuchi RIKEN-BNL) - enlarge image |
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Lattice QCD (Theoretical Physics) Shown here are images of left and right handed domain wall wave functions for light quarks. By adding a fifth dimension, one can simulate the chirality (handedness) of fermions. These visualizations display the wave function of such domain-wall fermions averaged over the fifth dimension for a given time value. The image at the left represents left-handed chirality, at the right, right-handed chirality. The color-bar indicates the values of the wave function on a logarithmic scale. These wave functions are used to study chiral symmetry breaking on the lattice without fine tuning of the lattice spacing. (Data courtesy of M. McGuigan CSC and Taku Izubuchi RIKEN-BNL) - enlarge image (left) | enlarge image (right) |
Last Modified: January 31, 2008
Please forward all questions about this site to:
Claire Lamberti
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