Measurements of wave-breaking radiation from a laser-wakefield accelerator.
Measurements of wave-breaking radiation from a laser-wakefield accelerator.
复制标题
激光尾场加速器破波辐射的测量。
DOI：
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发表时间：
2007
影响因子：
8.6
通讯作者：
Karl Krushelnick
中科院分区：
文献类型：
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作者：
A. Thomas;S. Mangles;Z. Najmudin;M. Kaluza;C. Murphy;Karl Krushelnick
在激光尾流场加速实验中，对激光传播方向的辐射进行了光谱分析，结果表明，当电子被加速到相对论能量时，会产生宽带辐射。与整个相互作用长度相比，发生发射的区域很短。发射的能量和沿相互作用长度的沿着位置都随等离子体密度而变化。自陷电子的辐射模型表明，辐射是剧烈的初始加速的特征，因此可以用作自注入机制的诊断。
Spectral analysis of radiation emitted transverse to laser propagation in laser-wakefield acceleration experiments shows broadband emission when electrons are accelerated to relativistic energies. The region over which emission occurs is short compared with the overall interaction length. The energy of the emission and location along the interaction length both vary with plasma density. A model for the radiation from self-trapped electrons indicates that the emission is a signature of the violent initial acceleration, and hence can be used as a diagnostic of the self-injection mechanism.