WebScattering attenuation separated fractured zones from regions of compaction, controlled, before and during the sequence by thrusts and lithological differences. High scattering (strong fracturing) increases through time due to intense fracturing, while low scattering (higher compaction of the rocks) marks areas where earthquakes will occur. Web1 sept. 2024 · A method to estimate the K-edge jump of attenuation coefficient of contrast agents in dual-energy CT in medical imaging. • This enables eliminating the discontinuity effect of the K-edge, rendering the problem continuous with energy. • A K-edge eliminated material decomposition can then be performed, eliminating the K-edge artifacts. 1.
K-edge energy-based calibration method for photon counting detectors …
Web10 apr. 2024 · Road traffic noise is a special kind of high amplitude noise in seismic or acoustic data acquisition around a road network. It is a mixture of several surface waves with different dispersion and harmonic waves. Road traffic noise is mainly generated by passing vehicles on a road. The geophones near the road will record the noise while … Web8 feb. 2024 · multienergy K-edge decomposition imaging which can extract an optimized K-edge signal by optimizing energy bins compared with the conventional theoretical … neemans office
(PDF) Measurement of X-ray mass attenuation coefficient
Web17 apr. 2024 · For example, K-edge refers to the absorption edge of the K shell, the closest shell to the nucleus in an atom. The absorption edge corresponding to the same shell typically increases with the atomic number ( Z ). The absorption edges of the primary elements that comprise soft tissue (H, C, N, and O) are below 1 keV. WebSpectral photon counting computed tomography (SPCCT) is an emerging medical imaging technology. SPCCT scanners record the energy of incident photons, which allows specific detection of contrast agents due to measurement of their characteristic X-ray attenuation profiles. This approach is known as K-edge imaging. Web1 sept. 2002 · We present tabulated near K-edge linear attenuation coefficients for a range of materials commonly used in MOS construction; namely, crystalline silicon (Si-c), … neeman roofing lincoln ne