A numerical approach to designing a versatile pepper-pot mask for emittance measurement
A numerical approach to designing a versatile pepper-pot mask for emittance measurement
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设计用于发射率测量的多功能胡椒罐掩模的数值方法
DOI：
10.1016/j.nima.2019.162485
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Apsimon O
中科院分区：
文献类型：
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作者：
Apsimon O
胡椒罐法是一种流行的发射度测量技术，用于测量低能高强度光束，如由光注入器产生的光束。在本文中，束流动力学的空间电荷占主导地位的制度和分析设计准则的掩模为基础的发射度测量（胡椒罐法）进行了重新审视。介绍了一种用于测试胡椒罐装置性能的跟踪代码。这种测试的例子与粒子分布，使用PARMELA在不同的聚焦条件下产生的。这些分布进行了数值测试，对一系列的掩模几何形状建议的分析标准。所得到的微调几何形状和观察到的束流动力学特征。
The pepper-pot method is a popular emittance measurement technique for high intensity beams at low energy such as those generated by photo-injectors. In this paper, the beam dynamics in the space charge dominated regime and analytical design criteria for a mask-based emittance measurement (pepper-pot method) are revisited. A tracking code developed to test the performance of a pepper-pot setup is introduced. Examples of such testing are presented with particle distributions that were generated using PARMELA under different focusing conditions. These distributions were numerically tested against a series of mask geometries suggested by analytical criteria. The resulting fine-tuned geometries and beam dynamics features observed are presented.
空间电荷力的发射增长
DOI：
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发表时间：
2008
期刊：
影响因子：
--
作者：
T. Wangler
通讯作者：
T. Wangler