Parametric emittance measurements of electron beams produced by a laser plasma accelerator

Parametric emittance measurements of electron beams produced by a laser plasma accelerator
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激光等离子体加速器产生的电子束的参数发射率测量

DOI:
10.1088/1361-6587/aab6cd
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发表时间:
2018
影响因子:
2.2
通讯作者:
Benedetti, C
Benedetti, C
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Barber, S K;Tilborg, J van;Schroeder, C B;Lehe, R;Tsai, H-E;Swanson, K K;Steinke, S;Nakamura, K;Geddes, C G;Benedetti, C

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激光等离子体加速器(LPA)提供了一个令人兴奋的可能性,提供高能量,高亮度的电子束在显着更小的距离尺度比是典型的传统加速器。因此,LPA作为下一代光源和紧凑型线性对撞机的潜在驱动器引起了相当大的关注。为了评估LPA源对于特定应用的可行性,应适当地表征源的亮度。在本文中,我们提出了电荷相关的横向发射度测量LPA源使用电离注入和冲击诱导密度下降斜坡注入,后者提供较小的横向发射度的两个因素时,控制电荷密度。单次发射度方法进行了详细的描述与二阶输运效应有关的限制的讨论。空间电荷的直接作用,探索通过一系列的模拟,发现是一致的实验观察。
Laser plasma accelerators (LPA) offer an exciting possibility to deliver high energy, high brightness electrons beams in drastically smaller distance scales than is typical for conventional accelerators. As such, LPAs draw considerable attention as potential drivers for next generation light sources and for a compact linear collider. In order to asses the viability of an LPA source for a particular application, the brightness of the source should be properly characterized. In this paper, we present charge dependent transverse emittance measurements of LPA sources using both ionization injection and shock induced density down ramp injection, with the latter delivering smaller transverse emittances by a factor of two when controlling for charge density. The single shot emittance method is described in detail with a discussion on limitations related to second order transport effects. The direct role of space charge is explored through a series of simulations and found to be consistent with experimental observations.
DOI: 10.1103/physrevstab.17.102801
发表时间: 2014-10-02
影响因子: --
作者:
Dolgashev, Valery A.;Bowden, Gordon;Xiang, Dao
通讯作者: Xiang, Dao
DOI: 10.1103/physrevlett.110.185006
发表时间: 2013-05-02
影响因子: 8.6
作者:
Buck, A.;Wenz, J.;Veisz, L.
通讯作者: Veisz, L.
影响因子: 1.4
作者:
Hajima, R.;Kikuzawa, N.;Ohgaki, H.
通讯作者: Ohgaki, H.
高质量电子加速器传输线中活性等离子体透镜的比较研究
DOI: 10.1063/1.5018001
发表时间: 2018
期刊: Physics of Plasmas
影响因子: 2.2
作者:
van Tilborg, J.;Barber, S. K.;Benedetti, C.;Schroeder, C. B.;Isono, F.;Tsai, H.-E.;Geddes, C. G.;Leemans, W. P.
通讯作者: Leemans, W. P.