HIRFL 新B1聚束器的腔体设计
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摘要: 根据HIRFL加速器的束流纵向匹配要求及实际情况，给出了新B1聚束器腔体的具体设计方案。采用短路片和两个移动电容板双调谐方式以满足该聚束器的宽工作频率范围要求。利用MAFIA程序对腔体的频率范围、品质因素Q值、损耗功率、微调电容及表面电流分布进行了计算，并就计算中可能引起的误差及方案的可行性进行了讨论。Abstract: According to the longitudinal matching requirement of the HIRFL two cyclotrons, a scheme of the new B1 buncher has been introduced. Both the moving short-circuit plate and the two movable capacity plates are employed to meet the large frequency range (22~54MHz) requirement. With the help of three-dimensional electromagnetic field computation code MAFIA, the frequency range, Q factor, power losses and surface current distribution of the B1 cavity have been computed. The errors in computation and the feasibility of the scheme have been discussed also in this paper.
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Key words:
- buncher /
- rf cavity design /
- mafia code
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