1、X射线技术介绍和应用X-ray Analysis 1. X射线的产生和性质1.1 导论 1.2 X射线的产生1.3 X射线的性质2. X射线技术和应用2.1 X射线衍射(XRD)2.1 EXAFS,XANES2.3 X射线形貌(XRT)2.4 X射线成像(XRI)2.5 X射线小角散(XRS)2.6 X射线光刻(XRL)射线荧光(XRF) 3. 结束语:X射线实验系列化研究1. X射线的...
For this reason, it is not yet possible to focus down to X-ray wavelength . In Abbe’s sense, the diffraction limit is not in but in the achievable numerical aperture. In other words, the diffraction limit for X-rays is a limit of the diffraction structure. This has raised the ...
X射线光电子能谱 X-Ray Photoelectron Spectroscopy (XPS) 表面分析—表面组成、价态 (定性和定量分析) X-射线光电子能谱的基本原理 光电效应 具有足够能量的入射光子 (h )同样品相互作用时, 光子把它的全部能量转移给原子、分子或固体的某一束 电子,使之电离。此时光子的一部份能量用来克服轨道 电子结合能...
The wavelength λ of x-rays is conserved for Thomson scattering in contrast to the two inelastic scattering processes mentioned above. It is the Thomson component in the scattering of x-rays that is made use of in structural investigations by x-ray diffraction. Figure 1.1 illustrates the process...
where (1 − δ) and β are the real and imaginary parts of n, λ is the X-ray wavelength, re the classical radius of the electron, and na the number of atoms per volume. For the majority of the X-ray regime, the real part f1 of the atomic scattering factor changes only li...
The wavelength λ of x-rays is conserved for Thomson scattering in contrast to the two inelastic scattering processes mentioned above. It is the Thomson component in the scattering of x-rays that is made use of in structural in- vestigations by x-ray diffraction. Figure 1.1 illustrates the ...
The first point limits the numerical aperture (NA) of reflective optics; since the critical angle scales linearly with X-ray wavelength, the achievable resolution λ/ϑc ∼ 10 nm is approximately constant with photon energy, and only depends on the material. This length scale would then be...
The corresponding wavelength amounts to 131±3 nm. Full size image We found that the resonant spin-precessional motion, that is, ferromagnetic resonance (FMR), of saturated nanodisks occurred at much larger frequency f0 compared with the uniform mode of the YIG film with wave vector kSW=0....
By this constitution, the X-ray image can be arbitrarily enlarged according to a predetermined formula and the position resolving power inherently possessed by the detector 11 can be enhanced. Further, because only an extremely narrow wavelength region is diffracted from the aspect of the essence ...
According to Bragg's law the distance, d, between successive identical planes of atoms in a crystal is defined by Equation (3.1), where λ is the X-ray wavelength, θ is the Bragg angle between the X-ray beam and the lattice planes, and n is any whole number. (3.1)d=nλ2sinθ ...