tmiethlinger

def ekin(p_r, m_r = 1, to_MeV = True):
    """ compute relativistic kinetic energy from Smilei momentum and mass
    Parameters
    ----------
    p_r : float
        particle momentum in reduced units.
    m_r : float, optional
        particle mass in reduced units, default value is hydrogen mass.
    to_MeV : bool, optional
        computes energy in MeV if true, otherwise in E_r (reduced energy units).

tmiethlinger

def gamma(p_r, m_r = 1):
    """ compute Lorentz factor from Smilei momentum and mass
    Parameters
    ----------
    p_r : float
        particle momentum in reduced units.
    m_r : float, optional
        particle mass in reduced units, default value is hydrogen mass.
    Returns
    -------