fpi

bapsflib.plasma.core.fpi(m_i, n_i, Z, **kwargs)

ion-plasma frequency (Hz)

\[f_{pi} = \frac{\omega_{pi}}{2 \pi} = \sqrt{\frac{n_{i} (Z e)^{2}}{\pi m_{i}}}\]

Parameters:

• m_i (float) – ion mass (in g)

• n_i (float) – ion number density (in \(cm^{-3}\))

• Z (int) – ion charge number

• note: (..) – see function opi():