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词汇 EXAFS
分类 英语词汇 英语翻译词典
释义

EXAFS

英汉-汉英词典
abbr. 延伸X射线吸收精细结构(extended X-ray absorption fine structure)
词组 | 习惯用语
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  • extra adv. 特别地,非常;另外 n. 额外的事物;临时演员;号外;上等产品
  • exams n. 考试;检查(exam的复数)
EXAFS abbr. 延伸X射线吸收精细结构(extended X-ray absorption fine structure)

网络短语:
fluorescence exafs 荧光exafs
exafs characterization exafs表征
exafs method exafs方法
exafs study exafs研究
exafs spectroscopy exafs研究
exafs spectrometer exafs谱仪
exafs studies exafs研究
laboratory EXAFS 实验室EXAFS
an exafs study exafs研究
in-laboratory EXAFS spectrometer 实验室EXAFS谱仪
英语百科

Extended X-ray absorption fine structure

(重定向自EXAFS)

X-ray Absorption Spectroscopy (XAS) includes both Extended X-Ray Absorption Fine Structure (EXAFS) and X-ray Absorption Near Edge Structure (XANES). XAS is the measurement of the x-ray absorption coefficient ( \mu (E) in the equations below) of a material as a function of energy. X-rays of a narrow energy resolution are shone on the sample and the incident and transmitted x-ray intensity is recorded as the incident x-ray energy is incremented. The number of x-ray photons that are transmitted through a sample (It) is equal to the number of x-ray photons shown on the sample (I0) multiplied by a decreasing exponential that depends on the type of atoms in the sample, the absorption coefficient \mu, and the thickness of the sample x.

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