电子横向初始位置对高能电子轨迹和辐射特性的影响  

Effects of the transverse initial position of electrons on the trajectory and radiation properties of high-energy electrons

作　　者：沈曈 华欣竹 何咏秋 严刚[3] 田友伟[3] SHEN Tong;HUA Xinzhu;HE Yongqiu;YAN Gang;TIAN Youwei(Bell Honor School,Nanjing University of Posts and Telecommunications,Nanjing,Jiangsu 210023,China;College of Automation&College of Artificial Intelligence,Nanjing University of Posts and Telecommunications,Nanjing,Jiangsu 210023,China;College of Science,Nanjing University of Posts and Telecommunications,Nanjing,Jiangsu 210023,China)

机构地区：[1]南京邮电大学贝尔英才学院,江苏南京210023 [2]南京邮电大学自动化学院、人工智能学院,江苏南京210023 [3]南京邮电大学理学院,江苏南京210023

出　　处：《光电子．激光》2024年第9期981-986,共6页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金项目(10947170);南京邮电大学STITP项目(CXXYB2022515)资助项目。

摘　　要：为得到圆偏振激光脉冲与电子碰撞后电子的最佳辐射特性,通过控制变量的方法,选取电子的若干个横向初始位置,利用MATLAB程序迭代模拟,并讨论电子横向初始位置对高能电子运动轨迹和辐射特性的影响。结果表明,随着电子横向初始位置的增大,电子的运动轨迹和辐射特性在圆偏振强激光脉冲的作用下受到显著影响。对电子的辐射功率进行分析,当电子处于0.15λ_(0)(λ_(0)=1μm)的横向初始位置,电子的螺旋运动产生的最大辐射功率会达到最佳状态。通过对圆偏振强激光脉冲与电子相互作用的模型进行仿真,发现了电子辐射功率全空间的分布规律,为实际中的精确实验提供了理论依据。To obtain the optimal radiation characteristics of the electron under the collision of a circularly polarized laser pulse,several transverse initial positions of the electron are selected with the method of controlling variables by using MATLAB programs.The effect of the transverse initial positions of the electron on the trajectory and radiation characteristics of high-energy electrons is discussed.The results reveal that when the transverse initial position of the electron moves in the positive x-axis direction,the circularly polarized intense laser pulse has a considerable effect on the electron trajectory and radiation properties.According to the analysis of the radiation power of the electron,when the transverse initial position is 0.15λ_(0)(λ_(0)=1μm),the maximum radiation power generated by the spiral motion of the electron will reach the optimal state.By simulating the model of the interaction between circularly polarized intense laser pulses and electrons,the distribution of electron radiation power in the entire space is found,which provides a theoretical basis for accurate experiments in practice.

关 键 词：圆偏振强激光脉冲 电子横向初始位置 电子运动轨迹 辐射功率 MATLAB仿真 

分 类 号：TN241[电子电信—物理电子学]