In X-ray absorption spectroscopy, the K-edge is a sudden increase in x-ray absorption occurring when the energy of the X-rays is just above the binding energy of the innermost electron shell of the atoms interacting with the photons. The term is based on X-ray notation, where the innermost electron shell is known as the K-shell.

2019年6月29日 · We have carried out a theoretical and experimental investigation of the beryllium K-edge soft x-ray absorption fine structure of beryllium compounds in the oxygen group, considering BeO, BeS, BeSe, and BeTe. Theoretical spectra are …

2023年11月3日 · K-edge（K边缘） 是X射线吸收光谱中的一个特定能量点。 这个点与原子核的K壳层（内壳层）电子有关。 当入射X射线的能量等于或略高于K壳层电子的束缚能量时，会发生K-edge吸收。

2013年7月9日 · The Be K-edge excitations (symbols) and corresponding absorption spectrum (line) at the edge are shown for (a) BeO, (b) BeS, (c) BeSe and (d) BeTe. In the case of BeO the components both orthogonal (red boxes, full line) and parallel (blue circles, dashed blue line) to the c-axis are shown.

2013年8月7日 · We have carried out a theoretical and experimental investigation of the beryllium K-edge soft x-ray absorption fine structure of beryllium compounds in the oxygen group, considering BeO, BeS, BeSe, and BeTe. Theoretical spectra are obtained ab initio, through many-body perturbation theory, by solvin …

We have carried out a theoretical and experimental investigation of the beryllium K-edge soft x-ray absorption fine structure of beryllium compounds in the oxygen group, considering BeO, BeS, BeSe, and BeTe.

Edge used for MAD experiment : with following energies used for calculation : (1) XrayAnode , (2) Edge minus , (3) Edge minus , (4) Edge plus , (5) Edge plus eV. Wavelength/Energy Conversion. Enter either a wavelength (shorter than 100 A) or an energy (larger than 100 ev) : or select an anode material : List of selected X-ray absorption edge ...

The K-edge is the sudden increase in X-ray absorption of the atom at the binding energy of its inner electronic shell and is material-specific. As a result, the additional spectral information contributes to better characterization of tissues and materials of interest, indicating the future potential of this X-ray imaging modality.

Download scientific diagram | The Be K-edge excitations (symbols) and corresponding absorption spectrum (line) at the edge are shown for (a) BeO, (b) BeS, (c) BeSe and (d) BeTe.

A hypergraph H is k-edge-connected if λ(H) ≥ k, where 1 ≤ k ≤ δ(H) with δ(H) denoting the minimum degree of H. If λ(H) = δ(H), we say that H is maximally edge-connected.