Determination of near-electrode voltage drops and average field in a discharge channel with a current amplitude of 1.3 MA in hydrogen at an initial pressure of 5 MPa

The results of a study of a discharge in hydrogen at an initial pressure of $\sim$5 MPa and a current amplitude of $\sim$1.3 MA, initiated by the explosion of a wire, are presented. The mean value of the electric field in the discharge channel and the mean near-electrode voltage drop were determined in a series of experiments with steel electrodes in the range of interelectrode gaps from 1 to 2 cm at the moment of current maximum. The total near-electrode voltage drop was $\sim$2.45 kV and the electric field strength in the discharge channel was $\sim$0.6 kV/cm.