نوع مقاله : مقاله پژوهشی
نویسندگان
1 هیأت علمی
2 عضو هیئت علمی پژوهشگاه علوم و فنون هسته ای
3 عضو هیئت علمی - پژوهشکده پلاسما و گداخت
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
In this paper, the injection of Nitrogen electrons due to ionization in a laser-plasma accelerator is studied. For this purpose, the propagation of short and intense laser pulses with different pulse shapes in a combination of Hydrogen atoms (low atomic number) and Nitrogen atoms (high atomic number) is considered. Using the single-particle Hamiltonian in the plasma wave field caused by the ionization of Hydrogen atoms, the physics and the mechanism of electron ionization injection in the appropriate phase are investigated. Then, the results of the particle-in-cell (PIC) simulation code show that the population and maximum energy of the trapped and injected nitrogen electrons due to ionization are strongly dependent on the laser pulse shape.
کلیدواژهها English
