In the RFX reversed field pinch (RFP) frozen H and D pellets with mass <=5x10^20 atoms and speed <=1.5 km/s are used for plasma fuelling. If a high speed pellet is launched with no plasma or is not completely ablated, the graphite first wall may be damaged by its impact. The paper presents the design of a protection system, based on real-time measurements of plasma current and density, developed to prevent incomplete pellet ablation.
A real-time protection system for the RFX pellet injector
P Innocente;S Martini
1998
Abstract
In the RFX reversed field pinch (RFP) frozen H and D pellets with mass <=5x10^20 atoms and speed <=1.5 km/s are used for plasma fuelling. If a high speed pellet is launched with no plasma or is not completely ablated, the graphite first wall may be damaged by its impact. The paper presents the design of a protection system, based on real-time measurements of plasma current and density, developed to prevent incomplete pellet ablation.File in questo prodotto:
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