【摘 要】
：
在国际上已有的冲击磁铁方案不能完全满足BEPCⅡ储存环注入系统对冲击磁铁宽均匀场区、高均匀度和低束流阻抗的设计要求的情况下 ,提出了一种新型冲击磁铁的设计思想 .理论分
【机 构】
：
中国科学院高能物理研究所,中国科学院高能物理研究所,中国科学院高能物理研究所 北京100039rrrrrrrrrn,北京100039rrrrrrrrrn,北京1
论文部分内容阅读
在国际上已有的冲击磁铁方案不能完全满足BEPCⅡ储存环注入系统对冲击磁铁宽均匀场区、高均匀度和低束流阻抗的设计要求的情况下 ,提出了一种新型冲击磁铁的设计思想 .理论分析和瞬态OPERA程序模拟计算的结果表明 ,在Δx =± 2 0mm的范围内 ,中心平面上场的均匀性为± 0 .6 % ,y =5mm的平面上场的均匀性为± 0 .7% ,y =10mm的平面上场的均匀性为± 2 .9% ,均优于BEPCⅡ储存环注入对冲击磁铁的设计要求 .MAFIA程序模拟计算的束流阻抗Z/n(eff)小于0 0 2 2Ω ,小于设计要求的 0 .0 2 5Ω .
In the case that the existing impact magnet solution in the world can not fully meet the design requirements of wide uniform field area, high uniformity and low beam impedance of the impact magnet by the BEPC Ⅱ storage ring injection system, a new design idea of the impact magnet is proposed The theoretical analysis and transient OPERA simulation results show that the field uniformity is ± 0.6% at the center plane and ± 0 at the plane y = 5mm in the range of Δx = ± 20mm. 7% and y = 10mm, respectively, were all better than that of the BEPCⅡ storage ring with a uniformity of ± 2.9%, and the beam impedance Z / n (eff) calculated by the MAFIA program was less than 0 0 2 2Ω, less than the design requirement of 0 .0 2 5Ω.
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