Effect of the Dome on the Collisional Neutral Gas Flow in the Demo Divertor

This paper presents the analyses of the dome effect on the pumping efficiency and screening of the neutrals for the European DEMO ITER-like divertor configuration of 2015. The effect of the dome on neutral compression in the private flux region is assessed by using the DIVGAS code based on the direct simulation Monte Carlo method. The numerical analysis includes the calculation of neutral density,...