Plasma based synchrotron radiation sources

等离子体波作为下一代粒子加速器的大加速场源已经得到了很好的研究。利用激光驱动的等离子体波，现在可以在实验室中常规地将粒子加速到超过GeV的能量。这种光束是非常感兴趣的，因为它们会强烈辐射，并在同步加速器和自由电子激光实验室中找到普遍的用途，以产生高质量的辐射光束，特别是x射线。在这个项目中，我们将考虑使用相同的结构，用于加速粒子在激光韦克菲尔德加速器，作为辐射源。这些结构具有同样大的聚焦力，可以使相对论性电子在穿过等离子体时以与它们在磁波荡器中移动相同的方式波动。该项目将通过实验和模拟来研究带电粒子在这些高场等离子体波荡器中的运动。我们将特别感兴趣的是新的情况下，激光韦克菲尔德光束的波动可以导致窄能量扩散辐射（波荡器制度）。

Plasma waves are now well studied as sources of large accelerating fields for next generation particle accelerators. Using laser driven plasma waves, it is now possible to routinely accelerate particles to beyond GeV energies in the laboratory. Such beams are of great interest because they will radiate strongly and find common use in synchrotron and free-electron laser laboratories to produce high quality beams of radiation particularly x-rays. In this project, we will consider the use of the same structures used to accelerate particles in laser wakefield accelerators, as radiation sources. These structures have equally large focussing forces which can make relativistic electrons undulate as they traverse through the plasma in much the same way that they move in a magnetic undulator. The project will investigate the motion of charged particles in these high field plasma undulators through both experiment and simulation. We will particularly be interested in novel situations where the undulation of a laser wakefield beam can lead to narrow energy spread radiation (the undulator regime).Zulfikar to input