Monte Carlo Approach for Estimating Density and Atomic Number From Dual‐Energy Computed Tomography Images of Carbonate Rocks
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jb014408
Abstract: We develop a new Monte Carlo-based inversion method for estimating electron density and effective atomic number from 3D dual-energy computed tomography (CT) core scans. The method accounts for uncertainties in X-ray attenuation coefficients resulting from… read more here.
Keywords: monte carlo; density; number dual; atomic number ... See more keywords
Quantitative lung perfusion blood volume (PBV) using dual energy CT (DECT)-based effective atomic number (Zeff ) imaging.
Sign Up to like & getrecommendations! Published in 2021 at "Medical physics"
DOI: 10.1002/mp.15227
Abstract: BACKGROUND Iodine material images (aka iodine basis images) generated from dual energy CT (DECT) have been used to assess potential perfusion defects in the pulmonary parenchyma. However, iodine material images do not provide the needed… read more here.
Keywords: perfusion defects; perfusion; iodine material; effective atomic ... See more keywords
Effective atomic number of breast tissues determined by transmission and scattering methods
Sign Up to like & getrecommendations! Published in 2020 at "Radiation Physics and Chemistry"
DOI: 10.1016/j.radphyschem.2019.04.010
Abstract: Abstract The interaction process of the ionizing electromagnetic radiation with a composite material, formed by the combination of several atoms with different atomic number, can be described by an effective atomic number, Zeff. This parameter… read more here.
Keywords: effective atomic; transmission; atomic number; breast tissues ... See more keywords
Studies on equivalent atomic number and photon buildup factors for some tissues and phantom materials.
Sign Up to like & getrecommendations! Published in 2019 at "Radiation Physics and Chemistry"
DOI: 10.1016/j.radphyschem.2019.108388
Abstract: Abstract Geometric progression fitting method was used for the computation of the gamma-ray EABF of eleven tissue equivalent materials and nine human organs and tissues up to energy 3 MeV. Quantitative comparison of photon absorption and… read more here.
Keywords: tissues phantom; atomic number; equivalent atomic; buildup factors ... See more keywords
Study of the relationship between different intensity ratios and effective atomic number in diluted uranium samples
Sign Up to like & getrecommendations! Published in 2021 at "Radiation Physics and Chemistry"
DOI: 10.1016/j.radphyschem.2020.109213
Abstract: Abstract In this work, the samples with the different effective atomic number between 10.536 and 66.177 were obtained by mixing urayl acetate ((CH3COO)2UO2⋅2H2O) and cellulose (C6H10O5) powders by matrix dilution method. The variation of different… read more here.
Keywords: effective atomic; intensity ratios; different intensity; atomic number ... See more keywords
Effective atomic number and buildup factor calculations for metal nano particle doped polymer gel
Sign Up to like & getrecommendations! Published in 2017 at "Vacuum"
DOI: 10.1016/j.vacuum.2017.06.005
Abstract: Abstract The present study aimed at verifying the water equivalency of the PAGAT gel and metal nano particle (different concentration of gold and silver) PAGAT (MPAGAT) gel in terms of effective atomic number (Z eff… read more here.
Keywords: buildup factor; metal nano; effective atomic; gel ... See more keywords
Average Atomic Number and Electron Backscattering in Compounds
Sign Up to like & getrecommendations! Published in 2019 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927619012303
Abstract: It is often assumed that some signals (e.g., backscatter, continuum) emitted from electron solid interactions can be extrapolated from pure element observations to compounds by means of the assumption of average atomic number, or Z-bar… read more here.
Keywords: electron backscattering; average atomic; atomic number; number electron ... See more keywords
Scanning Electron Thermal Absorbance Microscopy for Light Element Detection and Atomic Number Analysis.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c04502
Abstract: Recent developments in nanoscale thermal metrology using electron microscopy have made impressive advancements in measuring either phononic or thermal transport properties of nanoscale samples. However, its potential in material analysis has never been considered. Here… read more here.
Keywords: thermal absorbance; analysis; atomic number; microscopy ... See more keywords
In-situ measurement and close-loop control of atomic number density in an optically pumped magnetometer based on light absorption
Sign Up to like & getrecommendations! Published in 2023 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/accdf6
Abstract: For optically pumped atomic magnetometers, the attenuation of the pumping light through the alkali-metal vapor due to light absorption is related to the number density of alkali-metal atoms. In this study, we propose an in-situ… read more here.
Keywords: number density; atomic number; density; light absorption ... See more keywords
A quantitative analysis of spectral computed tomography characteristics of osseous metastases.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of medical imaging and radiation oncology"
DOI: 10.1111/1754-9485.13528
Abstract: INTRODUCTION Spectral detector computed tomography (SDCT) is a recent advancement that enables elemental material decomposition which could improve the detection of osseous metastases in the oncologic patient. METHODS Sixteen patients who underwent oncologic staging SDCT… read more here.
Keywords: osseous metastases; atomic number; calcium suppression; analysis ... See more keywords
Effective atomic number of Mn–Co–Fe2O3 ternary alloys using the Rayleigh to Compton scattering ratio
Sign Up to like & getrecommendations! Published in 2017 at "Canadian Journal of Physics"
DOI: 10.1139/cjp-2016-0756
Abstract: The objective of this work is to determine effective atomic number (Zeff) of Fe2O3(0.2)–Mnx–Coy (x + y = 0.8) ternary alloys using scattering of gamma photons and to compare available methods used to calculate Zeff.… read more here.
Keywords: ternary alloys; alloys using; number; effective atomic ... See more keywords