arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2305.09581physics.acc-phphysics.plasm-ph
收藏

等离子体尾场加速器中驱动电子能量耗尽与再加速

Energy Depletion and Re-Acceleration of Driver Electrons in a Plasma-Wakefield Accelerator

F. Peña, C. A. Lindstrøm, J. Beinortaitė, J. Björklund Svensson, L. Boulton, S. Diederichs, B. Foster, J. M. Garland, P. González Caminal, G. Loisch, S. Schröde… 展开作者

F. Peña, C. A. Lindstrøm, J. Beinortaitė, J. Björklund Svensson, L. Boulton, S. Diederichs, B. Foster, J. M. Garland, P. González Caminal, G. Loisch, S. Schröder, M. Thévenet, S. Wesch, J. C. Wood, J. Osterhoff, R. D'Arcy

AI总结:

本文首次明确观测到等离子体尾场加速器中驱动电子的再加速现象,并测得驱动器将57%能量沉积于195毫米等离子体,结合其他效率表明其总能量转移效率可达到或超越传统加速器。

摘要:

为了使等离子体尾场加速器充分发挥其成本效益的潜力,必须最大化其能量转移效率。这一效率的关键方面是能量从驱动电子到等离子体尾场的近乎完全转移,即耗尽。完全耗尽的实现受到再加速过程的限制,该过程发生在驱动电子减速至非相对论能量、向后滑入尾场加速相位并随后被再加速时。此处首次明确观测到这种再加速。在此再加速极限下,我们测得一个束流驱动器将其能量的(57±3)%沉积到长度为195毫米的等离子体中。将这一驱动器到等离子体的效率与先前测得的等离子体到束流效率以及预期的壁插头到驱动器效率相结合,我们的结果表明等离子体尾场加速器原则上可以达到甚至超过传统加速器的能量转移效率。

英文摘要:

For plasma-wakefield accelerators to fulfil their potential for cost effectiveness, it is essential that their energy-transfer efficiency be maximized. A key aspect of this efficiency is the near-complete transfer of energy, or depletion, from the driver electrons to the plasma wake. Achieving full depletion is limited by the process of re-acceleration, which occurs when the driver electrons decelerate to non-relativistic energies, slipping backwards into the accelerating phase of the wakefield and being subsequently re-accelerated. Such re-acceleration is unambiguously observed here for the first time. At this re-acceleration limit, we measure a beam driver depositing (57 $\pm$ 3)\% of its energy into a 195-mm-long plasma. Combining this driver-to-plasma efficiency with previously measured plasma-to-beam and expected wall-plug-to-driver efficiencies, our result suggests that plasma-wakefield accelerators can in principle reach or even exceed the energy-transfer efficiency of conventional accelerators.

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。

↑