Reconstruction of current density distribution in a moving anode arc root based on the ART algorithm

This paper presents a method to reconstruct the current density distribution in arc root using the measured linear current distribution in two orthogonal directions, by applying the ART (algebra reconstruction technique). Calculation is conducted on the basis of the experimental results of linear current distribution in two orthogonal directions obtained by M G Drouet, and then the 2-D current density distribution is yielded and discussed. This study indicates that the ART coined with the linear current distribution in arc root measured via split electrode method is an effective and practical approach to reconstruct the current density distribution in moving anode arc root.