半导体光电, 2017, 38 (2): 208, 网络出版: 2017-05-09   

参数共振与晶体摆动场中粒子运动的稳定性

Parametric Resonance and Stability of Particle Motion in Crystalline Undulator
作者单位
1 广东技术师范学院 自动化学院, 广州 510000
2 重庆交通大学 理学院,重庆 400074
摘要
从倒置摆方程出发讨论了无扰动系统的相平面特征,并用Jacobi椭圆函数和椭圆积分解析地描述了带电粒子的电磁辐射;用多尺度法导出了扰动系统的频率响应、临界条件和一阶近似解,揭示了系统不可逆性、不稳定性和弛豫行为。用拉莫公式讨论了带电粒子的辐射强度。指出了适当调节参数可以保证系统的稳定性。
Abstract
Starting from the inverted pendulum equation, the phase plane characteristics of the unperturbed system were discussed, and the electromagnetic radiation of the charged particle was described analytically by Jacobi elliptic function and elliptic integral. The frequency response, critical condition and first order approximation solution of the perturbed system were derived by the multiscale method, thus the irreversibility, instability and relaxation behavior of the system were revealed. The radiation intensity of the charged particles was discussed by Ramos formula. It is pointed out that the stability of the system can be ensured by adjusting the parameters properly.

王娜, 罗诗裕. 参数共振与晶体摆动场中粒子运动的稳定性[J]. 半导体光电, 2017, 38(2): 208. WANG Na, LUO Shiyu. Parametric Resonance and Stability of Particle Motion in Crystalline Undulator[J]. Semiconductor Optoelectronics, 2017, 38(2): 208.

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