Study of longitudinal phase space for typical beam injector via analytical method
Study of longitudinal phase space for typical beam injector via analytical method
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典型束流注入器纵向相空间解析法研究
DOI：
10.1016/j.nima.2022.167628
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发表时间：
2022-10
期刊：
影响因子：
--
通讯作者：
Jun Yang
中科院分区：
文献类型：
--
作者：
Tongning Hu;Junyang Li;Kai Peng;Hongjie Xu;Jun Yang
高亮度电子束的纵向相空间（LPS）操纵对于光电阴极注入器的成功开发至关重要，尤其是那些有望产生超短束团的光电阴极注入器。与常用的涉及专用器件和复杂外围子系统的方案相比，基于调整注入射频相位的LPS线性化的便捷方法在由射频腔和漂移管组成的典型注入器中具有优势。其中，代替传统的高阶谐波腔，以下漂移空间中的自然演化已被应用于补偿来自喷射器的LPS的非线性。由于LPS的充分表征对于促进这种方法的应用非常重要，因此从新的角度进行了详细的分析推导以证明操纵方案，并进行了数值模拟以进一步验证理论结果。还通过分析和数值方法分析了不可避免的相滑移的贡献。此外，为了交叉检查分析结果，还进行了多粒子模拟。所有结果表明，典型注入器的LPS可以通过漂移过程中的自然演化而线性化。那么这种方法是对传统 LPS 操作方法的一种可能的补充。
Longitudinal phase space (LPS) manipulation for high-brightness electron beams is critical for successful development of photocathode injectors, especially those are expected to generate ultra-short bunches. Compared with commonly used schemes involving dedicated devices and complicated peripheral sub-systems, a convenient approach for LPS linearization, which is based on adjusting injecting RF phase, has advantages in the typical injectors those consisting of RF cavities and a drift tube. Therein, instead of conventional higher-order harmonic cavities, natural evolutions in the following drift space have been applied to compensate nonlinearity of the LPS from the injector. Since adequate characterizations for the LPS are of importance to promote the application of such approach, elaborate analytical derivations from a new view have been conducted to demonstrate the manipulation scheme, and numerical simulations have been performed to further validate the theoretical results. Contributions of inevitable phase slippages have also been analyzed via analytical and numerical methods. Additionally, to cross-check the analysis results, multi-particle simulations have been performed as well. All of the results indicate that the LPS of the typical injector can be linearized through the natural evolutions during the drifting process. Then such method presents to be a conceivable supplement to conventional LPS manipulation approaches.
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DOI：
10.1016/0168-9002(89)90688-8
发表时间：
1989-02
影响因子：
1.4
作者：
Kwang-je Kim
通讯作者：
Kwang-je Kim
影响因子：
2.8
作者：
Qinglong Yu;D. Gu;Meng Zhang;Minghua Zhao
通讯作者：
Qinglong Yu;D. Gu;Meng Zhang;Minghua Zhao
DOI：
10.1103/physrevstab.18.120102
发表时间：
2015-12
影响因子：
--
作者：
B. Zeitler;K. Floettmann;F. Grüner
通讯作者：
B. Zeitler;K. Floettmann;F. Grüner
DOI：
10.1016/0168-9002(94)91278-5
发表时间：
1994-02
影响因子：
1.4
作者：
C. Travier
通讯作者：
C. Travier
影响因子：
8.6
作者：
F. Fu;Rui Wang;P. Zhu;Lingrong Zhao;Tao Jiang;Chao Lu;Shengguang Liu;Libing Shi;Lixin Yan-Lixin
通讯作者：
F. Fu;Rui Wang;P. Zhu;Lingrong Zhao;Tao Jiang;Chao Lu;Shengguang Liu;Libing Shi;Lixin Yan-Lixin