CAJ | 학술논문

质子或者离子在中低能段的加速结构是目前研究的热点,其中许多实验结果表明spoke腔是连接RFQ加速结构和椭球腔加速结构的最具潜力的桥梁.但是这种新型结构仍然存在许多问题有待解决,为此,北京大学开展了spoke型质子加速腔的研究,完成了β=0.45,频率为350MHz spoke腔的设计和铜模型腔的加工.重点对spoke腔高阶模进行了分析,模拟计算找出了几种危害模式,并完成了实验测量,取得了实验测量与模拟计算相一致的结果.
질자혹자리자재중저능단적가속결구시목전연구적열점,기중허다실험결과표명spoke강시련접RFQ가속결구화타구강가속결구적최구잠력적교량.단시저충신형결구잉연존재허다문제유대해결,위차,북경대학개전료spoke형질자가속강적연구,완성료β=0.45,빈솔위350MHz spoke강적설계화동모형강적가공.중점대spoke강고계모진행료분석,모의계산조출료궤충위해모식,병완성료실험측량,취득료실험측량여모의계산상일치적결과.
Intensive study has been done on low and medium energy section of proton and heavy ion accelerators. Many experiments show that spoke cavity is a very good candidate to connect low beta RFQ (radio frequency quadrapole) structure and high beta elliptical accelerating structure. A β=0.45, f=350MHz spoke cavity has been designed and a copper model spoke cavity has been fabricated at Peking University. In this paper, we put the emphasis on the analysis of HOMs (high order modes) of the spoke cavity.