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基于RFQ加速器中束流横向运动方程描述了一种计算其入口处束流接受度的方法 .针对特定结构参数的四翼型RFQ加速器 ,给出了计算结果为 :加速质子束时的系统接受度在x x′平面为0 .0 15 3cm·rad ,在y y′平面为 0 .0 114cm·rad .此方法也适用于求解其它已知结构、使用射频场加速、线性横向电场的加速器的接受度 .
A method of calculating the beam acceptance at the entrance is described based on the lateral flow equation of the beam in the RFQ accelerator.For the four-air RFQ accelerator with specific structural parameters, the calculation results are as follows: the system acceptance when accelerating the proton beam It is 0.015 3 cm · rad in the xx ’plane and 0.014 cm · rad in the yy’ plane. This method is also suitable for accepting accelerators of other known structures using RF field acceleration, linear transverse electric field.