Concurrently, B and BN powder injections into the SAS-VW divertor demonstrated significant effects on heat flux and W erosion control without adversely affecting H-mode performance. Specifically, B injections at rates up to 25 mg/s resulted in a notable decrease in W deposition. In contrast, BN injections led to substantial X-point radiation, prominently reducing heat fluxes and W erosion through detachment. These outcomes underline the efficacy of powder injection techniques in managing plasma-material interactions, particularly in high-Z environments, highlighting their potential in next-step long-pulse devices.
Events
Concurrently, B and BN powder injections into the SAS-VW divertor demonstrated significant effects on heat flux and W erosion control without adversely affecting H-mode performance. Specifically, B injections at rates up to 25 mg/s resulted in a notable decrease in W deposition. In contrast, BN injections led to substantial X-point radiation, prominently reducing heat fluxes and W erosion through detachment. These outcomes underline the efficacy of powder injection techniques in managing plasma-material interactions, particularly in high-Z environments, highlighting their potential in next-step long-pulse devices.