ANODE SHEATH IN A STRONG TRANSVERSE MAGNETIC FIELD.

The plasma sheath which arises at the anode in a discharge in a strong transverse magnetic field in which the gas is injected through the anode is investigated in the steady-state, one-dimensional formulation. The effect of the high-voltage boundary on the sheath structure is taken into account by introducing a potential-dependent electron mobility in the direction across the magnetic field. An approximate analytic solution is found by modeling the empirical behavior of the ion current density as a function of the potential over the sheath thickness. The solution depends only on a single function, the average number of ions generated by an electron that crosses a potential difference of 1 V. The distributions of various parameters over the sheath thickness are described.