Dataset for simulations of a beamline that controls longitudinal phase space whilst transporting LWFA electrons to an undulator

This dataset relates to a design for a particle accelerator beamline. The beamline transports particles (electrons) from a laser wakefield accelerator (LWFA) source to an undulator. The unique design allows the 'chirp' or 'longitudinal phase space' of the electron distribution to be sheared during transport.<br> The dataset contains: 1) Initial bunch distributions created by the ASTRA generator program and conversion to MAD8 program format; 2) a working MAD8 batch file; 3) Three set-ups of the beamline to provide positive, negative or no shear; 4) Tracking simulation input files to track the initial distributions through each beamline set-up; 5) Output electron distributions that result from each tracking simulation.本数据集围绕一款粒子加速器束线的设计展开。该束线可将粒子（电子）从激光尾波场加速器（laser wakefield accelerator, LWFA）源传输至波荡器。其独特设计能够在传输过程中对电子分布的“啁啾”或“纵向相空间”实现剪切操作。 该数据集包含以下内容：1）由ASTRA生成程序创建并转换为MAD8程序格式的初始束团分布；2）可用的MAD8批处理文件；3）三种束线配置方案，分别实现正剪切、负剪切与零剪切效果；4）用于在各束线配置中追踪初始束团分布的追踪模拟输入文件；5）各追踪模拟运行后得到的输出电子分布。