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14 May 2019 Brilliant X-ray radiation sources from high quality laser-driven wakefield accelerator (Conference Presentation)
Changhai Yu
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Proceedings Volume 11036, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III; 110360E (2019) https://doi.org/10.1117/12.2520539
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic
Abstract
Laser wakefield accelerators (LWFA) hold great potential to produce high-quality high-energy electron beams (e beams), and wiggling of these LWFA e beams either in the Conventional period magnetic field structure (undulator radiations), strong focusing laser wakefield (betatron radiation), or intense laser fields (Compton scattering) can emit high-energy x-ray photons. By experimentally generating the high-quality LWFA e beams with a good stability and repeatability, we have recently produced tunable quasi-monochromatic ultrahigh brilliance MeV γ-ray via the self-synchronized all-optical Compton scattering scheme and realized a scheme to enhance betatron radiation by manipulating transverse oscillation of electrons in a deflected wakefield with a tilted shock front. We also redeveloped and optimized the 200TW laser system to generate the high-stability electron beams, which may realize the compact and coherent x-ray free-electron-laser. The concurrent generation of high-quality e beams and bright x-rays in a compact LWFA may provide practical applications in ultrafast pump-probe study and x-ray radiology fields.
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Changhai Yu "Brilliant X-ray radiation sources from high quality laser-driven wakefield accelerator (Conference Presentation)", Proc. SPIE 11036, Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources III, 110360E (14 May 2019); https://doi.org/10.1117/12.2520539
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KEYWORDS
X-rays
Laser scattering
Compton scattering
Electron beams
Laser systems engineering
Magnetism
Photons
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