AN ASSESSMENT OF THE ROLE OF ATOMIC PROCESSES FOR DISPERSING THE POWER IN A DIVERTOR

The present concepts for power and particle control in the next genera tion of tokamak experiments rely upon atomic processes to transfer the power and momentum from the divertor plasma to the divertor chamber w alls. These concepts are being evaluated with sophisticated one- and t wo-dimensional divertor models. We present a survey of some of the can didate atomic processes of impurity radiation, hydrogen radiation and atomic physics and molecular effects to aid the development of the mod els.