论文标题
基于绝热匹配设备的正电子捕获系统的理论研究
Theoretical investigations on the Adiabatic Matching Device-based positron capture system
论文作者
论文摘要
用电子束撞击转换目标，具有宽的能量光谱和轨迹与系统轴的轨迹角度大的扫描。正电子束的容纳量降低了角度扩散。转换正电子束相肖像的最合适的设备之一是绝热匹配设备（AMD）。本文提出了AMD的缩写理论。结果表明，针对降低角扩散的横相体积的转换会导致延长束。纵向和横向概率密度函数均得出。分析结果通过数值模拟验证。
The positrons produced with the electron beam impinging on a conversion target, possess wide energy spectrum and large sweep of the angle of trajectories to the system axis. Accommodation of the positron bunch to the acceptance of an ajacent accelerator, mandates the reduction of angular spread. One of the most appropriate devices for transforming the phase portrait of a positron bunch is Adiabatic Matching Device (AMD). The paper presents an abridge theory of AMD. It is shown that the transformation of the transverse phase phase volume aimed at decrease the angular spread causes prolonging the bunch. Both the longitudinal and the transversal probability density functions are derived. The analytical results are validated with numerical simulations.
