Study on law of two-dimensional plate relativistic electron beam to target
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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, and thus the Larmor inlet 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, respectively on the relativistic electron beam paramagnetic and deviation from the magnetic field 3 ° angle two kinds of transmission simulation, through the simulation of the transmission process of the beam group, analyze and study the paramagnetic environment of different transmission distance group to the target rate of the change rule, as well as deviation from the magnetic field of the change rule of the rate of the amount of injection of the transmission process 3 ° angle, for the relativistic electron beam to the target rate of the estimation and target targeting This will provide data reference for the prediction of relativistic electron beam-to-target rate and target aiming.
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Key words:
- relativistic electron beam /
- target arrival rate /
- fluence rate /
- turning point /
- Larmor precession
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图 7 电子束以及轴向速度的仿真模拟分布图
Figure 7. Simulation of the 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
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