A Real-Time Protection System for the RFX Pellet Injector

L. Garzotti; P. Innocente; S. Martini

doi:dx.doi.org/10.13182/FST98-A11963662

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Home / Publications / Journals / Fusion Science and Technology / Volume 34 / Number 3P2

A Real-Time Protection System for the RFX Pellet Injector

L. Garzotti, P. Innocente, S. Martini

Fusion Science and Technology / Volume 34 / Number 3P2 / November 1998 / Pages 505-509

Fueling and Tritium Handling Technology (Poster Session) / dx.doi.org/10.13182/FST98-A11963662

Published:February 8, 2018

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In the RFX reversed field pinch (RFP) frozen H and D pellets with mass ≤5·10²⁰ 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.