Fields and injected electron dynamic in the coaxial waveguide with Piet Hein cross section filled plasma considering TE and TM modesM. B. Abrahimi and A. Abdoli-AraniEur. Phys. J. Plus, 137 1 (2022) 167DOI: https://doi.org/10.1140/epjp/s13360-021-02307-w