下一代直线对撞机失谐结构尾场的精确计算——盘荷波导电磁场的研究

Calculation of Wakefield in Detuning Structure of Next Generation Linear Collider with High Accuracy——Analysis of RF Quantities in Disc Structure'

利用变分法研究了周期性盘荷波导中零极模、二极模及更高极模式的电磁场特性 .该方法考虑了栏片的圆弧 ,对真实结构没有做任何近似 ,是一种高精度方法 ,计算表明该方法的结果与实验测量值基本符合 ,与其它程序相比有很高的计算精度 .

A variational method is presented for computations of both monopole mode and dipole mode rf quantities in metal disk-loaded waveguides. It allows for rounding of edge of a disk hole without any approximation in shape treatment. Good agreement has been found between computed and experimental results. It has higher accuracy than those of some existing simulation programs, hence provides a good tool to calculate wakefield of the tapered disc-loaded waveguides in next generation linear colliders.