Simulation of channeling and radiation of 855 MeV electrons and positrons in a small-amplitude short-period bent crystal

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• 作者：Andrei V. Korol^a ; ^{korol@mbnexplorer.com" class="auth_mail" title="E-mail the corresponding author} ; Victor G. Bezchastnov^b ; ^c ; Gennady B. Sushko^a ; Andrey V. Solov&rsquo ; yov^a
• 关键词：Channeling ; Periodically bent crystal ; De-channeling length ; Radiation spectra
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2016
• 出版时间：15 November 2016
• 年：2016
• 卷：387
• 期：Complete
• 页码：41-53
• 全文大小：1636 K

文摘

Channeling and radiation are studied for the relativistic electrons and positrons passing through a Si crystal periodically bent with a small amplitude and a short period. Comprehensive analysis of the channeling process for various bending amplitudes is presented on the grounds of numerical simulations. The features of the channeling are highlighted and elucidated within an analytically developed continuous potential approximation. The radiation spectra are computed and discussed.