带电粒子穿过电介质球的辐射
Radiation from a charged particle flying through a dielectric ball
摘要：
研究了相对论带电粒子匀速运动通过介质球中心时的辐射。辐射能量的光谱和光谱角分布的解析表达式推导和辐射光谱的数值结果给出。结果表明，球真空边界对介质球内相对论粒子在特定频率下产生的切伦科夫辐射的谱分布有很大的影响。
英文摘要：
The radiation from a relativistic charged particle uniformly moving through the centre of a dielectric ball is investigated. Analytical expressions for spectral and spectral-angular distributions of the radiated energy are derived and numerical results for the spectrum of radiation are given. It is shown, that the spectral distribution of Cherenkov radiation generated by the relativistic particle inside a dielectric ball at specified frequencies is strongly influenced by the ballvacuum boundary.
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