We propose a new type of axisymmetric dielectric target which effectively concentrates Cherenkov radiation (CR) generated in the bulk of the material into a small vicinity of a focus point. It can be called the “axicon-based concentrator for CR.” A theoretical investigation of radiation field produced by a charge moving through the discussed radiator is performed for the general case where a charge trajectory is shifted with respect to the structure axis. The idea of a dielectric target with a specific profile of the outer surface was presented and developed in our preceding papers. However, contrary to the previous configuration of such a target (which was investigated for both centered and shifted charge trajectory), the current version of the device allows the efficient concentration of CR energy from relativistic particles, making this device extremely prospective for various applications.

中文翻译：

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基于轴锥的电介质集中器中电荷的Cherenkov辐射

我们提出了一种新型的轴对称电介质靶，该靶有效地将在材料的大部分中产生的切伦科夫辐射（CR）集中到焦点的小范围内。它可以称为“ CR的基于axicon的集中器”。对于电荷轨迹相对于结构轴移动的一般情况，进行了由电荷穿过讨论的辐射器移动而产生的辐射场的理论研究。在我们之前的论文中提出并开发了具有特定外表面轮廓的介电靶的想法。但是，与这种靶标的先前配置（针对中心和移动的电荷轨迹进行了研究）相反，该设备的当前版本允许相对论粒子有效地集中CR能量，