arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1306.0016physics.plasm-ph
收藏

laser -等离子体加速器中的Angular momentum演变

Angular momentum evolution in laser-plasma accelerators

C. Thaury, E. Guillaume, S. Corde, R. Lehe, M. Le Bouteiller, K. Ta Phuoc, X. Davoine, J. -M. Rax, A. Rousse, V. Malka

摘要:

电子束的横向特性由两个量表征,即指示电子束在相空间中延伸的发射度和允许非平面电子轨迹的角动量。虽然在激光等离子体加速器中产生的电子束的发射度已经在几个实验中测量过,但它们的角动量却很少研究。实验证明了激光等离子体加速器中的电子具有一定的角动量,但其来源尚未确定。在这里,我们确定角动量增长的一个来源,我们提出的实验结果表明,角动量的内容在加速过程中演变。

英文摘要:

The transverse properties of an electron beam are characterized by two quantities, the emittance which indicates the electron beam extend in the phase space and the angular momentum which allows for non-planar electron trajectories. Whereas the emittance of electron beams produced in laser- plasma accelerator has been measured in several experiments, their angular momentum has been scarcely studied. It was demonstrated that electrons in laser-plasma accelerator carry some angular momentum, but its origin was not established. Here we identify one source of angular momentum growth and we present experimental results showing that the angular momentum content evolves during the acceleration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑