First dielectric wakefield experiments at Daresbury Laboratory
First dielectric wakefield experiments at Daresbury Laboratory
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达斯伯里实验室的首次介电尾场实验
DOI：
10.1088/1742-6596/1596/1/012015
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Saveliev Y
中科院分区：
文献类型：
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作者：
Saveliev Y
在英国达雷斯伯里实验室的DEXA/VELA实验装置上进行了第一次介质韦克菲尔德加速（DWA）实验。DWA结构的平面几何形状与可变的间隙和电介质厚度范围从0.025至0.2毫米。该设施，在其当前状态下，提供电子束团高达100 pC聚束电荷，和可变的0.2-2.0 ps聚束长度在35兆电子伏的束能量。所有主要的韦克菲尔德效应都被观察到，包括长束团的能量调制、能量去斜变、横向拖尾和聚焦。用一个50 pC的中等束流电荷，测量到约8 MV/m的减速场。使用这种可变间隙的平面结构，我们也证明了连续可调谐的窄带太赫兹的产生。最后对实验结果和今后的发展作了总结。
The first dielectric wakefield acceleration (DWA) experiments have been conducted at the CLARA/VELA test facility at Daresbury Laboratory, UK. The DWA structures were of planar geometry with variable gap and dielectric thicknesses ranging from 0.025 to 0.2 mm. The facility, in its current state, provided electron bunches with up to 100 pC bunch charge, and variable 0.2-2.0 ps bunch lengths at the beam energy of 35 MeV. All major wakefield effects have been observed including energy modulation in longer bunches, energy dechirping, and transverse streaking and focussing. With a modest bunch charge of∼ 50 pC, a decelerating field of~ 8 MV/m was measured. Using this variable gap planar structure, we have also demonstrated generation of continuously tunable narrowband THz. A summary of experimental results and near future developments are presented.
CLARA 设施介电尾场计划的模拟研究
DOI：
10.1016/j.nima.2017.12.038
发表时间：
2018
期刊：
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子：
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作者：
Pacey T
通讯作者：
Pacey T