Conceptual design of a single-ended MA cavity for J-PARC RCS upgrade
Conceptual design of a single-ended MA cavity for J-PARC RCS upgrade
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用于 J-PARC RCS 升级的单端 MA 腔的概念设计
DOI：
10.1088/1742-6596/1067/5/052014
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. Yoshii
中科院分区：
文献类型：
--
作者：
M. Yamamoto;M. Nomura;T. Shimada;F. Tamura;M. Furusawa;K. Hara;K. Hasegawa;C. Ohmori;Y. Sugiyama;M. Yoshii
日本质子加速器研究综合体（J-PARC）快速循环同步加速器（RCS）采用磁性合金（MA）加载腔。射频功率是由真空管在推挽操作。由于MA的宽带特性，我们实现了多谐波射频驱动和束流负载补偿。然而，推挽操作在多谐波方面具有缺点。在极高的束流加速度下，阳极电压的摆幅会出现相当大的不平衡。我们提出了一个单端MA腔的RCS光束功率升级，其中没有不平衡产生固有的。
The Japan Proton Accelerator Research Complex (J-PARC) Rapid Cycling Synchrotron (RCS) employs Magnetic Alloy (MA) loaded cavities. The rf power is fed by vacuum tubes in push-pull operation. We realize the multi-harmonic rf driving and the beam loading compensation thanks to the broadband characteristics of the MA. However, the push-pull operation has disadvantages in multi-harmonics. A considerable amount of unbalance appears in the anode voltage swing at very high intensity beam acceleration. We propose a single-ended MA cavity for the RCS beam power upgrade, where no unbalance arises intrinsically.