DocumentCode :
3261745
Title :
Commissioning of the plasma central column for the PROTO-SPHERA spherical tokamak
Author :
Lampasi, Alessandro ; Maffia, Giuseppe ; Alladio, Franco ; Boncagni, Luca ; Grosso, Andrea ; Mancuso, Alessandro ; Micozzi, Paolo ; Tilia, Benedetto ; Zanza, Vincenzo
Author_Institution :
Nat. Agency for New Technol., Energy & Sustainable Econ. Dev. (ENEA), Frascati, Italy
fYear :
2015
fDate :
10-13 June 2015
Firstpage :
587
Lastpage :
592
Abstract :
PROTO-SPHERA is the first plasma project with a simply connected configuration, namely not requiring other objects inside the plasma. This is obtained by a hydrogen plasma arc, shaped as a screw pinch, acting as the central column of a spherical torus with minimal aspect ratio. The reduced size and complexity of the configuration can lead to several physical and engineering advantages, providing relevant contributions to the magnetic plasma confinement methods. Moreover, due to the limited costs and requirements, the set-up is attractive for replication and developments also on an industrial scale with many potential applications. This paper describes the initial activities of the PROTO-SPHERA project, with emphasis on the electrical tests and commissioning performed to implement the plasma central column. In particular, an intermediated experiment classified as MULTI-PINCH was designed to investigate the breakdown conditions and the pinch stability.
Keywords :
Tokamak devices; electric breakdown; hydrogen; pinch effect; plasma instability; plasma toroidal confinement; H; MULTI-PINCH; PROTO-SPHERA spherical tokamak; Spherical Plasma For Helicity Relaxation Assessment; breakdown conditions; electrical tests; hydrogen plasma arc; magnetic plasma confinement; minimal aspect ratio; pinch stability; plasma central column; screw pinch; spherical torus; Anodes; Cathodes; Coils; Fasteners; Power supplies; Tokamaks; AC/DC converter; nuclear fusion energy; pinch; plasma physics; power inverter; spherical tokamak;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2015 IEEE 15th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4799-7992-9
Type :
conf
DOI :
10.1109/EEEIC.2015.7165228
Filename :
7165228
Link To Document :
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