def k_ion(self, E):
        """
        Geometric focusing force due to ion column for given plasma density as a function of *E*
        """
        return self.n_p * _np.power(_spc.e, 2) / (2*_sltr.GeV2joule(E) * _spc.epsilon_0)
def k_ion(self, E):
        """
        Geometric focusing force due to ion column for given plasma density as a function of *E*
        """
        return self.n_p * _np.power(_spc.e, 2) / (2*_sltr.GeV2joule(E) * _spc.epsilon_0)
def k_ion ( self , E ) : return self . n_p * _np . power ( _spc . e , 2 ) / ( 2 * _sltr . GeV2joule ( E ) * _spc . epsilon_0 )
Geometric focusing force due to ion column for given plasma density as a function of *E*
Geometric focusing force due to ion column for given plasma density as a function of * E *