Application of PIC method for z-code and t-code simulation in RFQ accelerators

PIC方法在RFQ加速器 z-code和t-code模拟程序中的应用研究

The results show that when the phase spread or energy spread of the bunch is large relatively large errors could be introduced in z-code during the calculation of space charge effect . Therefore t-code should be adopted instead in the dynamic simulations for more accurate results .

结果表明，当束团的相位宽度大或能散大时， z-code在计算空间电荷作用时会引入相对较大的误差，从而应该使用t-code来进行动力学模拟，以获得更准确的结果。