Title :
Voltage holding prediction in multi-electrode multi-voltage systems insulated in vacuum
Author :
Pilan, N. ; Veltri, P. ; De Lorenzi, A.
Author_Institution :
Consorzio RFX - Associazione EURATOM-ENEA per la Fusione, Padova, Italy
fDate :
Aug. 30 2010-Sept. 3 2010
Abstract :
The voltage holding in the 1 MV ITER Neutral Beam Accelerator is recognized to be one of the most critical issues for long lasting beam operation, due to the complex electrostatic structure formed by differently shaped electrodes polarized at different potentials. At present, no model is available to predict the breakdown probability of electrostatic system with a comparable complexity degree. This paper is aimed at proposing an innovative modelling for the voltage breakdown prediction of such complex systems, based on the implementation of the micro particle (clump) induced breakdown Cranberg-Slivkov theory into a statistical approach.
Keywords :
electric breakdown; electrodes; fusion reactors; plasma devices; statistical analysis; vacuum insulation; ITER neutral beam accelerator; breakdown Cranberg-Slivkov theory; breakdown probability; complex electrostatic structure; electrostatic system; international thermonuclear experimental reactor; multielectrode multivoltage systems; statistical approach; vacuum insulation; voltage 1 MV; voltage breakdown prediction; voltage holding prediction; Electric breakdown; Electric fields; Electrodes; Electrostatics; Geometry; Particle beams; Trajectory;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum (ISDEIV), 2010 24th International Symposium on
Conference_Location :
Braunschweig
Print_ISBN :
978-1-4244-8367-9
Electronic_ISBN :
1093-2941
DOI :
10.1109/DEIV.2010.5625752
