Design and beam dynamics study of disk-loaded structure for muon LINAC
Design and beam dynamics study of disk-loaded structure for muon LINAC
复制标题
μ子直线加速器盘加载结构设计与梁动力学研究
DOI：
10.1088/1742-6596/2420/1/012038
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Yasuda H
中科院分区：
文献类型：
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作者：
Sumi K;Iijima T;Inami K;Sue Y;Yotsuzuka M;Ego H;Otani M;Saito N;Mibe T;Yoshida M;Kondo Y;Moriya K;Takeuchi Y;Nakazawa Y;Yasuda H
为J-PARC μ子g-2/EDM实验，μ子LINAC中的盘加载结构（DLS）正在开发中。四个加速梯度为20 MV/m的DLSs负责从40 MeV到212 MeV的μ子加速，这相当于光速的70%到94%。设计了具有渐变盘间距的准恒定梯度型TM 01 -2π/3模DLSs，证实了在2592 MHz频率下，由于μ子与相速度失配引起的累积相位滑移可被抑制到2 °以下。此外，还研究了满足总发射度小于1.5 π mm mrad和动量散布均方根小于0.1%的最佳同步相位和最佳晶格。
The disk-loaded structures (DLS) in the muon LINAC are under development for the J-PARC muon g–2/EDM experiment. Four DLSs with an accelerating gradient of 20 MV/m take charge of muon acceleration from 40 MeV to 212 MeV, which corresponds to 70% to 94% of the speed of light. The quasi-constant gradient type TM01-2π/3 mode DLSs with gradually varying disk spacing was designed and it was confirmed that the cumulative phase slip due to the mismatch between muon and phase velocity can be suppressed to less than 2 degrees at the frequency of 2592 MHz. In addition, the optimum synchronous phase and the lattice were investigated to satisfy the requirements of the total emittance less than 1.5 π mm mrad and the momentum spread less than 0.1% in RMS.