论半抛物面目标对相干衍射辐射的聚焦效应

IF 0.4 Q4 PHYSICS, PARTICLES & FIELDS

Physics of Particles and Nuclei Letters Pub Date : 2024-04-09 DOI:10.1134/s1547477124020122

A. P. Potylitsyn, A. V. Vukolov, M. V. Shevelev, A. A. Baldin, V. V. Bleko, V. V. Bleko, V. V. Kobets, P. V. Karataev, V. R. Kocharyan

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引用次数: 0

摘要

摘要研究了通过准直超相对论电子发射的相干衍射辐射（DR）获得的太赫兹/次太赫兹辐射的光束特性。为了使这种辐射在光束轴上达到最大强度，建议使用焦距等于目标与准直器孔径之间距离的半抛物线目标。研究表明，对于所提议的几何形状，孔径平面上的 DR 分布沿光束轴线具有最大值，这与之前使用的相干过渡辐射机制不同，后者的特点是具有沿光束轴线最小值的 "漏斗状 "结构。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

$On the Effect of Focusing of Coherent Diffraction Radiation by a Semi-Parabolic Target$

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On the Effect of Focusing of Coherent Diffraction Radiation by a Semi-Parabolic Target

Abstract

Beam characteristics of a terahertz/subterahertz radiation obtained by collimation of coherent diffraction radiation (DR) emitted by ultrarelativistic electrons are considered. To achieve the maximum intensity on the beam axis of such radiation, it is proposed to use a semi-parabolic target with a focal length equal to the distance between the target and the collimator aperture. It is shown that for the proposed geometry, the DR distribution on the aperture plane has a maximum along the beam axis, in contrast to the previously used coherent transition radiation mechanism, which is characterized by a “funnel-shaped” structure with a minimum along the beam axis.

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来源期刊

Physics of Particles and Nuclei Letters PHYSICS, PARTICLES & FIELDS-

CiteScore

0.80

自引率

20.00%

发文量

108

期刊介绍： The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.