Numerical investigations of electron-self-injection in different shaped bubbles in wakefield acceleration
الموضوعات : Journal of Theoretical and Applied Physics
Sonu Kumar
1
,
Dhananjay Singh
2
,
Hitendra K. Malik
3
1 - Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
2 - Department of Physics, PKRM College, Dhanbad, Jharkhand, India.
3 - Department of Physics, Indian Institute of Technology Delhi, New Delhi, India.
الکلمات المفتاحية: energy gain, bubble shape, self-injection, Bubble wakefield acceleration,
ملخص المقالة :
Electron-self-injection in bubble wakefield acceleration is the new concept for acceleration of electrons inside bubble. In this technique, self-injected plasma electrons have been used for acceleration whose advantage is that there is no need of external source of electrons. In our case, we have carried out numerical investigations of self-injected plasma electrons in different shaped bubbles such as spherical, longitudinal ellipsoid and transverse ellipsoid bubble. For these numerical investigations, by carrying out relativistic Hamiltonian analysis of plasma electrons, we have used 4th order Runge-Kutta (RK) method by employing MATLAB ode45, a nonstiff differential equations solver. We have discussed different parameters such as impact parameter, radius of bubble, bubble velocity for their effect on the formation of bubbles with different shapes and self-injection of the electrons.
