论文标题
相对性电子产生的一致的单极cherenkov和衍射辐射
Coherent Unipolar Cherenkov and Diffraction Radiation Generated by Relativistic Electrons
论文作者
论文摘要
对于通常的辐射，在整个时间内电场强度的积分为零。在论文中，第一次考虑了单极辐射产生的可能性[例如，贝斯诺夫。苏联科学学院Lebedev物理研究所，莫斯科，1990年]。根据这项工作，单极辐射是辐射，在时间内电场强度的积分与零有显着不同。算出许多理论文章已专门用于此问题，主要是关于同步辐射的。但是到目前为止，尚无对这种现象的实验研究。在本文中，我们介绍了对单极cherenkov和相对论电子在毫米波长区域产生的衍射辐射的实验结果的结果。为此，已经阐述了对电场强度所选方向敏感的检测器。当电子在目标附近移动时，我们观察到了束电子束的连贯的Cherenkov辐射和向后的衍射辐射。已经为Cherenkov辐射注册了部分单极性效应，并且已经观察到了向后衍射辐射的几乎完全单极性。
For usual radiation the integral of the electric field strength over the time is zero. First time the possibility of unipolar radiation generation has been considered theoretically in the paper [EG.Bessonov. Preprint No 76 of the Lebedev Physical Institute of the Academy of Science of the USSR, Moscow, 1990]. According to this work the unipolar radiation is radiation for which the integral of the electric field strength over the time differs significantly from zero. Futher a number of theoretical articles have been devoted to this problem mainly in respect to a synchrotron radiation. However up to now there are no experimental investigations of this phenomenon. In this paper we present the results of experimental observation of the unipolar Cherenkov and diffraction radiation generated by relativistic electrons in millimeter wavelength region. For this purpose the detector sensitive to the selected direction of the electric field strength has been elaborated. We observed the coherent Cherenkov radiation and backward diffraction radiation of bunched electron beam when the electrons moving near the targets. The partial unipolarity effect has been registered for the Cherenkov radiation and the almost full unipolarity has been observed for the backward diffraction radiation.
