晶体的反射率对相对论电子衍射过渡辐射角度分布的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-05-01 DOI:10.1088/1748-0221/19/05/c05043

A. V. Berdnichenko, A.V. Budko, V.V. Kolodochkin, Y. Takabayashi, I. Vnukov

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引用次数: 0

摘要

通过测量衍射过渡辐射的角度分布，研究了晶体反射率的角度分布对相对论电子束发散评估的影响。结果表明，当考虑到反射率的角度分布时，得到的发散值接近真实值。如果不考虑这一影响，在确定水平发散值时就会产生系统误差。误差的大小取决于光束发散，并与反射光子能量的平方成反比。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Influence of the reflectivity of a crystal on the angular distribution of diffracted transition radiation of relativistic electrons

The influence of the angular profile of crystal reflectivity on the assessment of the divergence of a beam of relativistic electrons is studied through measurements of the angular distribution of diffracted transition radiation. The results show that, when the angular distribution of reflectivity is taken into account, the obtained divergence values are close to the true values. Failure to take this effect into account leads to systematic errors in determining the horizontal divergence. The magnitude of the error depends on the beam divergence and is inversely proportional to the square of the energy of the reflected photons.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.