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   Articles with "atomic number" as a keyword



Monte Carlo Approach for Estimating Density and Atomic Number From Dual‐Energy Computed Tomography Images of Carbonate Rocks

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recommendations! 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

All‐Inorganic ‐Oriented 2D Perovskite with High Equivalent Atomic Number for Efficient X‐Ray Absorption and Detection

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recommendations! Published in 2025 at "Advanced Optical Materials"

DOI: 10.1002/adom.202502667

Abstract: 2D perovskites are widely recognized as promising candidates for X‐ray detection. However, most 2D perovskites are organic‐inorganic hybrids with low equivalent atomic numbers, limiting their X‐ray absorption capacity, while all‐inorganic 2D perovskites typically exhibit orientation,… read more here.

Keywords: detection; equivalent atomic; ray absorption; high equivalent ... See more keywords
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Quantitative lung perfusion blood volume (PBV) using dual energy CT (DECT)-based effective atomic number (Zeff ) imaging.

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recommendations! 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

Dependence of surface dose on atomic number in megavoltage photon beams.

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recommendations! Published in 2024 at "Medical physics"

DOI: 10.1002/mp.16979

Abstract: BACKGROUND Surface dose in megavoltage photon radiotherapy has a significant clinical impact on the skin-sparing effect. In previously published works, it was established that the presence of medium atomic number (Z) absorbers, such as tin,… read more here.

Keywords: megavoltage photon; surface; surface dose; photon beams ... See more keywords

Effective atomic number of breast tissues determined by transmission and scattering methods

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recommendations! 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.

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recommendations! 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
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Study of the relationship between different intensity ratios and effective atomic number in diluted uranium samples

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recommendations! 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

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recommendations! 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

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recommendations! 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.

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recommendations! 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

Effect of the Anode Length and Atomic Number of Gases on Plasma Dynamics in a Linear Plasma Propulsion Device

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recommendations! Published in 2025 at "Fusion Science and Technology"

DOI: 10.1080/15361055.2025.2454128

Abstract: Abstract In this paper, the modeling of linear plasma propulsion (LPP) using the snowplow model is presented to investigate the effect of anode length variation and atomic number of gases on plasma dynamics. The model… read more here.

Keywords: length; number gases; device; anode length ... See more keywords