Comparative Studies of Electron Resistive and Conduction Models for Capillary Discharges Applications

Capillary discharge waveguides have been demonstrated to serve as an enabling technology for the acceleration and transport of high quality electron beams for next generation plasma accelerators [1] . The dynamical evolution these plasmas waveguides involves various transport and energy exchanges processes. Understanding these complex plasma phenomena and their impact on the electron beam quality is essential to analyzing and designing plasma accelerators. Magnetohydrodynamics (MHD) is a powerful computational tool to model electrons, ions and radiation dynamics for these systems. However, the predictive capability of MHD framework is highly sensitive to the microphysics model (e.g., equation of state, transport coefficients) used as closure for the macroscopic model.