An improved understanding of the roles of atomic processes and power balance in divertor target ion current loss during detachment. - K. Verhaegh; B. Lipschultz; B.P. Duval; O. Février; A. Fil; C. Theiler; M. Wensing; C. Bowman; D.S. Gahle; J.R. Harrison; B. Labit; C. Marini; et al. (Nuclear Fusion, 2019)