Conveners
Experimental 2 - dc systems and high-voltage technology
- Yinon Ashkenazy (The Hebrew University of Jerusalem (IL))
Nicholas Shipman
(University of Manchester (GB))
06/11/2013, 09:00
Obtaining a low breakdown rate in CLIC accelerating structures is a critical requirement for the successful operation of the proposed collider. To complement the RF study of breakdown phenomena the CERN DC spark systems were constructed. Recently system I has been vastly improved and can now operate at a repetition rate of 1kHz and is also able to monitor the electrode gap size. In this talk...
Stefan Lagotzky
(University of Wuppertal)
06/11/2013, 09:30
Enhanced field emission (EFE), resulting in dark currents and electric breakdowns, is one of the main gradient limitations for the CLIC accelerating structures (actual design Eacc = 100 MV/m, Epeak = 240 MV/m) [1]. Measurements on diamond-turned, flat (Ra = 158 nm) Cu samples showed first EFE at surface fields Es = 130 MV/m [2]. In order to reduce EFE, we have installed a commercial dry ice...
Hans Schellekens
(Schneider Electric)
06/11/2013, 10:00
Vacuum interrupters (VI's) are used in medium voltage circuit breakers to protect electrical distribution systems. Today the world wide annuel production exceeds 2 million units. Size reduction of VI's and application in solid insulated systems tend to increase the dielectric stresses inside these VI's. Cleaning is a key parameter to obtain reproducible dielectric results. Here the impact of...
