High resolution, single shot emittance measurement of relativistic electrons from laser-driven accelerator
High resolution, single shot emittance measurement of relativistic electrons from laser-driven accelerator
复制标题
利用激光驱动加速器对相对论电子进行高分辨率单次发射度测量
DOI：
10.1117/12.887175
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发表时间：
2011
影响因子：
3.3
通讯作者：
D. Jaroszynski
中科院分区：
文献类型：
--
作者：
G. Manahan;E. Brunetti;R. Shanks;M. Islam;B. Ersfeld;M. Anania;S. Cipiccia;R. Issac;G. Raj;G. Vieux;G. Welsh;S. Wiggins;D. Jaroszynski
标准化横向发射度是粒子加速器电子束质量的量度。亮度、平行性和可聚焦性都是发射度的函数。本文介绍了一种利用胡椒罐掩模测量激光韦克菲尔德加速器（LWFA）产生的125 ± 3 MeV电子束横向发射度的高分辨率单次激发方法。测量了平均归一化发射度εrms，x，y = 2.2 ± 0.7，2.3 ± 0.6 π-mmmrad，这与常规直线加速器的发射度相当。最佳的发射度测量值为εrms，x =1.1 ± 0.1 π-mm-mrad，对应于我们系统的分辨率极限。低发射度表明该加速器适合于驱动小型自由电子激光器。
The normalised transverse emittance is a measure of the quality of an electron beam from a particle accelerator. The brightness, parallelism and focusability are all functions of the emittance. Here we present a high-resolution single shot method of measuring the transverse emittance of a 125 ± 3 MeV electron beam generated from a laser wakefield accelerator (LWFA) using a pepper-pot mask. An average normalised emittance of εrms,x,y = 2.2 ± 0.7, 2.3 ± 0.6 π-mmmrad was measured, which is comparable to that of a conventional linear accelerator. The best measured emittance was εrms,x,=1.1 ± 0.1 π-mm-mrad, corresponding to the resolution limit of our system. The low emittance indicates that this accelerator is suitable for driving a compact free electron laser.
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影响因子：
19.6
作者：
Fuchs, Matthias;Weingartner, Raphael;Gruener, Florian
通讯作者：
Gruener, Florian
影响因子：
8.6
作者：
Brunetti, E.;Shanks, R. P.;Jaroszynski, D. A.
通讯作者：
Jaroszynski, D. A.
影响因子：
19.6
作者：
Schlenvoigt, H. -P.;Haupt, K.;Jaroszynski, D. A.
通讯作者：
Jaroszynski, D. A.
影响因子：
64.8
作者：
Faure, J;Glinec, Y;Malka, V
通讯作者：
Malka, V