نوع مقاله : مقاله پژوهشی
نویسنده
پژوهشکده پلاسما و گداخت هستهای، پژوهشگاه علوم و فنون هستهای، صندوق پستی: 51113-14399، تهران- ایران
کلیدواژهها
عنوان مقاله English
نویسنده English
Plasma accelerators are using high-energy proton beams as driven beams to produce plasma waves. In this approach, the proton beam energy is transferred through the formed plasma wave to the witness electron beam for achieving high energies. In this paper, using two-dimensional particle simulation, the interaction of a Gaussian high-energy ion beam with plasma containing linear density with a density gradient of 0.03% along the beam propagation direction has been investigated in order to produce a high energy electron beam with excellent quality. To investigate electron acceleration, an 18 MeV witness electron beam is sent to the plasma at the back of the ion beam. The simulation results show that, due to the interaction of the energetic proton beam with plasma, the strong plasma wave field with amplitude 400 MeV/m is created. This field accelerates the trapped electrons of witness beam to high energy gradients of several hundred MeV. Moreover, the evolution of the electron beam emittance as an important parameter in the investigation of the accelerated beam quality, indicates that by considering the appropriate parameters for the plasma, proton and electron beams, the emittance of the witness electron beam grows less than 50% compared to its initial value.
کلیدواژهها English
13.Plyushchev G, Kersevan R, Petrenko A, Muggli P. A rubidium vapor source for a plasma source for AWAKE. J. Phys. D: Appl. Phys. 2017;5:025203.