The results show that the absorption of metals to X ray is related to atomic number, thickness and X ray energy. 结果表明,X-射线的吸收与材料的原子序数、厚度及X-射线的能量有关。
As studied by X-ray energy spectrum and atomic absorption spectrum, the cell wall of Rhizopus Oryzae contains only 0. 036% of calcium in dry weight. 用X-ray能谱及原子吸收光谱研究,发现Ca(Ⅱ)仅占米根霉细胞壁干重的0.036%。
The effect of the length of alkyl chains on the structure of the transferred LB films was revealed by application of atomic force microscopy, FT IR spectra and X ray diffraction ( XRD) measurement. 利用AFM、XRD及FT-IR等技术研究了烷基链长对LB膜结构的影响。
The vacancies in atomic shells give rise to rearrangements in the shells which are accompanied by the emission of X ray and the ejection of Auger electrons. 其他原子电子壳层的电子将填补这些空穴,其原子电子位置将重排,并发射X射线和俄歇电子。
High atomic number material of device can produce dose-enhancement effects to next low atomic number material in metallized layer and encapsulation structures irradiated with low-energy X ray. So device performance degenerates badly. 在器件的金属化层及封装等结构中,高原子序数材料在低能X射线的辐照下,会在相邻的低原子序数材料中产生剂量增强效应,从而使得器件性能严重退化。
Calculation and discussion of atomic parameters in x-ray laser research 类镍X光激光研究中的原子参数讨论
Surface treatment of isotropic pitch based carbon fibers by electrochemical oxidation was carried out, and the processes of electrochemical oxidation were investigated through Atomic Force Microscopy ( AFM) and X ray Photoelectron Spectroscopy ( XPS). 对各向同性沥青基碳纤维进行电化学氧化表面处理,用XPS,AFM分析了碳纤维表面含氧官能团和表面微观形貌的变化过程。
A measurement method of GaAs surface composition and Ga/ As atomic ratio was developed using X ray photoelectron spectroscopy ( XPS). A series of GaAs polished wafers and GaAs wafers treated with some chemical solutions were studied by XPS. 用X射线光电子能谱分析技术(XPS)研究了几种砷化镓抛光片及经不同表面处理方法处理的砷化镓晶片表面的化学计量比和表面化学组成。
Then we reviewed the progress of researches of methods for determination of doping elements in synthetic crystals. The advantages and disadvantages of the methods of atomic spectroscopy, X ray fluorescence spectrometry, mass spectrometry and electron probe micro-analyzer have been compared. 接着介绍了国内外对人工晶体中掺杂元素分析方法的研究进展,比较了不同分析方法如X射线荧光法、原子光谱法、质谱法、电子探针显微分析法之间的优缺点。