外文题目: Particle-in-cell simulation of x-ray wakefield acceleration and betatron radiation in nanotubes
作者: Zhang, Xiaomei; Tajima, Toshiki; Farinella, Deano; Shin, Youngmin; Mourou, Gerard; Wheeler, Jonathan; Taborek, Peter; Chen, Pisin; Dollar, Franklin; Shen, Baifei
刊名: Phys. Rev. Accel. Beams
年: 2016 卷: 19 期: 10 文章编号：101004
英文关键词:

ELECTRON-BEAM; PLASMA; PHYSICS; CARBON; WAKE
英文摘要:
Though wakefield acceleration in crystal channels has been previously proposed, x-ray wakefield acceleration has only recently become a realistic possibility since the invention of the single-cycled optical laser compression technique. We investigate the acceleration due to a wakefield induced by a coherent, ultrashort x-ray pulse guided by a nanoscale channel inside a solid material. By two-dimensional particle-in-cell computer simulations, we show that an acceleration gradient of TeV/cm is attainable. This is about 3 orders of magnitude stronger than that of the conventional plasma-based wakefield accelerations, which implies the possibility of an extremely compact scheme to attain ultrahigh energies. In addition to particle acceleration, this scheme can also induce the emission of high energy photons at similar to O(10-100) MeV. Our simulations confirm such high energy photon emissions, which is in contrast with that induced by the optical laser driven wakefield scheme. In addition to this, the significantly improved emittance of the energetic electrons has been discussed.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1103/PhysRevAccelBeams.19.101004


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