SkyScan-1072 High-resolution desk-top micro-CT system

SkyScan-1072 is a compact, desk-top X-Ray system for the nondestructive three-dimensional reconstruction with high spatial resolution. It allows to obtain transmission images and reconstruct cross sections or the complete 3-D internal microstructure. The main application areas are : electronic components, biomedical objects, composites, non-destructive testing, oil collectors, geology, building materials, diamond certification and cutting optimisation, etc.

SPECIFICATIONS:

List of functions:

• Scanner and X-ray source control from external computer (X-ray tube voltage/current/spotsize, X-ray camera, object manipulator, motorized door of the specimen chamber, filters changer etc.).
• X-ray transmission imaging (microradiography) with possibilities to select position or area for 3D-reconstruction.
• X-ray transmission movie with automatic object rotation and possibilities for stereovisualization.
• Flat field correction (from acquired or analytical reference fields), camera distortion compensation, image filtering (median filter and averaging) during visualization.
• Data acquisition from different views with reconstruction of single cross section.
• Data acquisition to disk for reconstruction of several (up to several hundreds) cross sections with adjustment of integration time (from 200ms up to 10sec), rotation step (min 0.225 degree), step size from cross section to cross section, preprocessing, integration of several frames, acquisition in 180 or 360 degree rotation.
• Adjustments of cross_section-to-cross_section step size, rotation step, frame averaging, and different filtering and acquisition parameters for all acquisition modes.
• Reconstruction from the acquired data for one or several cross sections with possibilities for postalignment.
• Selection of density window (automatic or manual) for transformation of reconstructed results to the half-tone image.
• Special compensation for "beam hardening" during reconstruction.
• Reduction of ring artifacts by synchronous precision movement of object and readout area in the camera.
• Postprocessing for one or several reconstructed cross sections by library of filters (unsharp mask, emboss, contrast enhancement, Sobel filtering...)
• Special reconstruction mode with "shifted camera" for doubling the field of view (and max possible object size) with reconstruction of 2Kx2K cross sections.
• Elimination of star artifacts from the small hard inclusions in light objects by special procedure named "double reconstruction".
• Drawing of scales, marks and text onto the images.
• Local brightness histogram calculation and correction.
• Sharpening, smoothing, inversion, median filtering, segmentation, erosion, dilatation, region of interest selection, manual correction in binary image, morphological analysis for selected object or for all objects in the image.
• Visualization of the results of reconstruction cross section by cross section with indication of the reconstructed position in the shadow image.
• Conversion from the set of reconstructed cross sections to AVI-movie.
• Control and testing of alignments for camera and source.
• Image export in BMP and TIFF-formats for shadow projections and reconstructed cross sections.
• Image printing by any Windows-supported printer, print preview, adjustment of page layout.
• Stereo visualization (color coded) for one projection or during object rotation. Possibilities to save stereo movie to disk.
• Visualization of the reconstructed cross sections as a black-white, color or binary images with adjustable brightness/contrast/colors/thresholds, image inversion.
• Creation of new cut through the reconstructed dataset in another orientation; export new cut as a BMP-image.
• One-dimensional analysis: distance measurements in plane or between any two points inside 3D-object, min, max, average density values, density profile.
• Two-dimensional analysis from full cross section or inside rectangular/elliptical region of interest: total area, relative area (density or porosity), number of objects, average object size, size distribution
• Three-dimensional analysis for full object or inside region of interest: total volume, volume fraction (3D-porosity or density), total surface, surface-to-volume ratio.
• Possibilities to start several copies of software without scanner onto external computers to make off-line reconstruction, post-processing and analysis.
• 3D-rendering (triangular model) and realistic visualization of reconstructed objects: creation of 3D-models (up to four from the different density parts), rotation, translation, zoom, cut, selection in colors and surface properties (reflection, diffusion, transmittance), choice of illumination (intensity, direction), shadows, cut 3D-object in any direction, flight around and through the reconstructed microstructure, 3D triangular model's export/import, saving any screen image as BMP-file or printing it, 3D stereo visualization and movies.
• Calculation 2D and 3D internal morphological parameters such as object volume, relative volume, object surface, surface in volume unit, 3D density or porosity, structure model index, degree of anisotropy, etc.