A real-time protection system for the RFX pellet injector

Authors
Garzotti, L Innocente, P Martini, S
Citation
L. Garzotti et al., A real-time protection system for the RFX pellet injector, FUSION TECH, 34(3), 1998, pp. 505-509
Citations number
12
Categorie Soggetti
Nuclear Emgineering
Journal title
FUSION TECHNOLOGY
ISSN journal
07481896 → ACNP
Volume
34
Issue
3
Year of publication
1998
Part
2
Pages
505 - 509
Database
ISI
SICI code
0748-1896(199811)34:3<505:ARPSFT>2.0.ZU;2-N
Abstract
In the RFX reversed field pinch (RFP) frozen H and D pellets with mass less than or equal to 5.10(20) atoms and speed less than or equal to 1.5 km/s a re used for plasma fuelling. If a high speed pellet is launched with no pla sma 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.