Study on law of two-dimensional sheet relativistic electron beam transport to target
-
摘要: 相对论电子束在理想顺磁环境下能够以较高的注量率击中靶目标，但实际情况中由于受环境的影响，相对论电子束的传输方向可能会与地磁场呈小角度偏差，因此会受到地磁场的作用产生拉莫尔进动，影响电子束的到靶瞄准以及到靶注量。基于二维片状相对论电子束，分别对相对论电子束顺磁和偏离磁场3°角两种传输情况进行仿真模拟，通过模拟束团的传输过程，分析研究了顺磁环境下不同传输距离束团到靶率的变化规律，以及偏离磁场3°角时传输过程中注量率的变化规律，为相对论电子束到靶率的预估和靶目标的瞄准提供数据参考。Abstract: The relativistic electron beam can hit the target with a high injection rate under the ideal paramagnetic environment, but in reality, due to the influence of the environment, the transmission direction of the relativistic electron beam may deviate from the geomagnetic field at a small angle, thus the Larmor precession will be generated by the action of the geomagnetic field, which affects the target aiming of the electron beam as well as the amount of the injection to the target. In this paper, based on the two-dimensional sheet relativistic electron beam, taking the paramagnetic relativistic electron beam and the beam with 3° angle deviation from the magnetic field as two cases, through the simulation of the propagation of the bunches, we analyze and study the effect of different transmission distance on the bunch to target rate in paramagnetic environment, as well as that of the 3° deviation from the magnetic field on the amount of injection in the propagation process, thus to provide data for reference in the prediction of relativistic electron beam-to-target rate and target aiming.
-
Key words:
- relativistic electron beam /
- target arrival rate /
- fluence rate /
- turning point /
- Larmor precession
-
图 7 相对论电子束以及轴向速度的仿真模拟分布图
Figure 7. Simulation of the relativistie electron beam and axial velocity distribution
图 9 电子束注量率的极值点在偏转轨迹下的分布
Figure 9. Distribution of extreme point of electron beam flux rate under deflection trajectory
-
[1] Bonnal C, Ruault J M, Desjean M C. Active debris removal: recent progress and current trends[J]. Acta Astronautica, 2013, 85: 51-60. doi: 10.1016/j.actaastro.2012.11.009 [2] Hou Chongyuan, Yang Yuan, Yang Yikang, et al. Electromagnetic-launch-based method for cost-efficient space debris removal[J]. Open Astronomy, 2020, 29(1): 94-106. doi: 10.1515/astro-2020-0016 [3] Fang Yingwu, Pan Jun, Luo Yijia, et al. Effects of deorbit evolution on space-based pulse laser irradiating centimeter-scale space debris in LEO[J]. Acta Astronautica, 2019, 165: 184-190. doi: 10.1016/j.actaastro.2019.09.010 [4] Phipps C. Lisk-Broom: a laser concept for clearing space debris[J]. Laser and Particle Beams, 1995, 13(1): 33-41. doi: 10.1017/S0263034600008831 [5] Romero-Calvo Á, Cano-Gómez G, Schaub H. Simulation and uncertainty quantification of electron beams in active spacecraft charging scenarios[J]. Journal of Spacecraft and Rockets, 2022, 59(3): 739-750. doi: 10.2514/1.A35190 [6] 戴宏毅, 王同权, 肖亚斌. 带电粒子束自生力对束流扩散的影响[J]. 国防科技大学学报, 2000, 22(4):41-44Dai Hongyi, Wang Tongquan, Xiao Yabin. Research of effect of self-generated space charge force of charged particle beams on its radical spread[J]. Journal of National University of Defense Technology, 2000, 22(4): 41-44 [7] 张树发. 带电粒子束传输中发散范围的计算[J]. 国防科技大学学报, 1982, 4(2):43-54Zhang Shufa. The calculation of diffusive region of charged partical beam in transmiting[J]. Journal of National University of Defense Technology, 1982, 4(2): 43-54 [8] 戴宏毅, 肖亚斌, 王同权, 等. 带电粒子束在真空中传输时的扩散研究[J]. 湖南大学学报(自然科学版), 2001, 28(4):6-10Dai Hongyi, Xiao Yabin, Wang Tongquan, et al. Study of spread of propagation of charged particle beams in vacuum[J]. Journal of Hunan University (Natural Science Edition), 2001, 28(4): 6-10 [9] 胡星. 高能强流带电粒子束在介质中的传输研究[D]. 长沙: 国防科技大学, 2004Hu Xing. Research on propagation of high energy charged particle beams in media materials[D]. Changsha: National University of Defense Technology, 2004 [10] Hao Jianhong, Wang Xi, Zhang Fang, et al. The influence of magnetic field on the beam quality of relativistic electron beam long-range propagation in near-Earth environment[J]. Plasma Science and Technology, 2021, 23: 115301. doi: 10.1088/2058-6272/ac183a [11] 焦鹿怀, 葛亚松, 张援农, 等. 地磁场中电子束结构运动的横向约束与周期振荡[J]. 地球物理学报, 2022, 65(10):3691-3703Jiao Luhuai, Ge Yasong, Zhang Yuannong, et al. Transverse confinement and periodic oscillations of electron beam structures traveling in the Earth's magnetic field[J]. Chinese Journal of Geophysics, 2022, 65(10): 3691-3703 [12] Xue Bixi, Hao Jianhong, Zhao Qiang, et al. Influence of geomagnetic field on the long-range propagation of relativistic electron beam in the atmosphere[J]. IEEE Transactions on Plasma Science, 2020, 48(11): 3871-3876. doi: 10.1109/TPS.2020.3026088 [13] Miller R B. An introduction to the physics of intense charged particle beam[M]. New York: Springer, 1982: 1-359. [14] Khazanov G V, Liemohn M W, Krivorutsky E N, et al. Relativistic electron beam propagation in the Earth’s magnetosphere[J]. Journal of Geophysical Research: Space Physics, 1999, 104(A12): 28587-28599. doi: 10.1029/1999JA900414 [15] Neubert T, Gilchrist B, Wilderman S, et al. Relativistic electron beam propagation in the Earth’s atmosphere: modeling results[J]. Geophysical Research Letters, 1996, 23(9): 1009-1012. doi: 10.1029/96GL00247 [16] Zhang Shichang, Elgin J. Stabilizing effect of the electron-beam self-fields on the phase-space trajectory in a self-amplified spontaneous emission free-electron laser operating in ultraviolet and X-ray spectral ranges[J]. Journal of Physics B: Atomic, Molecular and Optical Physics, 2004, 37(4): 875-883. [17] White A E, Lewis H G. An adaptive strategy for active debris removal[J]. Advances in Space Research, 2014, 53(8): 1195-1206. doi: 10.1016/j.asr.2014.01.021 -
下载:
点击查看大图
图(10)
计量
- 文章访问数: 178
- HTML全文浏览量: 61
- PDF下载量: 32
- 被引次数: 0
