Particle-in-cell simulation of x-ray wakefield acceleration and betatron radiation in nanotubes

Journal Article · Tue Oct 18 00:00:00 EDT 2016 · Physical Review Accelerators and Beams

DOI:https://doi.org/10.1103/PhysRevAccelBeams.19.101004· OSTI ID:1334267

Zhang, Xiaomei ^[1]; Tajima, Toshiki ^[2]; Farinella, Deano ^[2]; Shin, Youngmin ^[3]; Mourou, Gerard ^[4]; Wheeler, Jonathan ^[4]; Taborek, Peter ^[2]; Chen, Pisin ^[5]; Dollar, Franklin ^[2]; Shen, Baifei ^[6]

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1. Chinese Academy of Sciences, Shanghai (China); Univ. of California, Irvine, CA (United States)
2. Univ. of California, Irvine, CA (United States)
3. Northern Illinois Univ. and Fermi National Accelerator Lab. (FNAL), Dekalb, IL (United States)
4. Ecole Polytechnique, Palaiseau (France)
5. National Taiwan Univ., Taipei (Taiwan)
6. Chinese Academy of Sciences, Shanghai (China)

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 ~O(10–100) MeV. Here, 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.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1334267
• Report Number(s): FERMILAB-PUB-16-571-APC; PRABFM; 1494351
• Journal Information: Physical Review Accelerators and Beams, Vol. 19, Issue 10; ISSN 2469-9888
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

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