def n_p(self):
        """
        The plasma density in SI units.
        """
        return 2*_sltr.GeV2joule(self.E)*_spc.epsilon_0 / (self.beta*_spc.elementary_charge)**2
def n_p(self):
        """
        The plasma density in SI units.
        """
        return 2*_sltr.GeV2joule(self.E)*_spc.epsilon_0 / (self.beta*_spc.elementary_charge)**2
def n_p ( self ) : return 2 * _sltr . GeV2joule ( self . E ) * _spc . epsilon_0 / ( self . beta * _spc . elementary_charge ) ** 2
The plasma density in SI units.
The plasma density in SI units .