Speaker
Nicola Pilan
Description
The present contribute describes and analyzes recent experimental results obtained at the High Voltage Padova Test Facility (HVPTF), the laboratory aimed at supporting the development of the prototype for the ITER NBI.
Evidences that bursts of electrons hitting the anode surface are the precursors of breakdown in a in a significative fraction of vacuum discharges were observed using a fast acquisition system composed of a single pixel x-ray detector triggered by a high-speed camera.
A simple model explaining the development of the vacuum arc starting from a gas bubble desorbed on the anode surface is proposed and validated on experimental results
Author
Co-authors
Andrea Muraro
(CNR)
Dr
Antonio De Lorenzi
(Consorzio RFX , Padova, Italy)
Dr
Emanuele Spada
(Consorzio RFX , Padova, Italy)
Mr
Federico Caruggi
(Università di Milano-Bicocca, Dipartimento di Fisica "G. Occhialini")
Federico Guiotto
(Dipartimento di Fisica, Università di Padova)
Dr
Felix Pino
(Dipartimento di Fisica, University of Padova, Italy)
Gabriele Croci
(Universita & INFN, Milano-Bicocca (IT))
Dr
Gianluigi Serianni
(Consorzio RFX)
Dr
Isabella Mario
(Consorzio RFX,Padova, Italy)
Mr
Luca Franchin
(Consorzio RFX , Padova, Italy)
Luca Lotto
(Consorzio RFX)
Dr
Luigi Cordaro
Mr
Michele Fincato
(CNR-ISTP, Padova, Italy)
Nicolò Marconato
Dr
Silvia Deambrosis
(CNR-ICMATE, Padova, Italy)
Silvia Spagnolo
(Consorzio RFX)
Tommaso Patton
Dr
giuseppe chitarin
(University of Padova and Consorzio RFX)
Dr
matteo agostini
