合肥光源200MeV直线加速器束流位置检测器的计算
Numerical studies on coupling of ultrawide band electromagnetic pulse into mines
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摘要: 采用Oprea程序对合肥光源200MeV直线加速器束流位置检测器(BPM)的电磁场进行了计算,由2D的静电场来模拟计算BPM的特性阻抗和耦合系数,采用2D的静磁场来模拟计算其位置灵敏线性曲线。由此,进行了直线加速器束流位置检测器的优化设计,得到了4个60°电极的位置检测器。它具有非常好的线性,在位置上具有足够大的信号强度,并且较好地满足了直线加速器的几何与机械要求。Abstract: This paper numerically studies the coupling of the ultrawide band electromagnetic pulse into mines. Some typical coupling results are presented for different incident angles and distances from the antenna to the mine. In order to investigate the coupling problem, this paper studies the perfectly marched layer used to truncate the lossy boundary, and provides the distributions of the electric field radiated from the TEM horn antenna fed by the UWB signal.
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Key words:
- ultrawide band /
- electromagnetic pulse /
- antenna /
- mine
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