DocumentCode :
3120833
Title :
Increasing electric standoff between conductors in vacuum
Author :
Pellinen, Donald
Author_Institution :
1208 Asti Ct. Livermore CA 94550, USA
Volume :
2
fYear :
2007
fDate :
17-22 June 2007
Firstpage :
1536
Lastpage :
1538
Abstract :
Pulsed power systems have limitations on power delivery. One limitation is the breakdown potential between conductive surfaces in vacuum. In a vacuum breakdown, a vacuum arc is generated between the surfaces. The microscopic limit on the breakdown potential is at the onset of field emission from the surface. The microscopic field for the onset of field emission is in excess of 1e9 V/m. Typical macroscopic breakdown fields between conductors vacuum are often less than 1e7 V/m. We have developed techniques to design and condition surfaces to withstand 5 to 10 times this electric field. We describe the conditioning technique and explore improved manufacturing techniques to increase the operating electrical potential of systems. DC applications include high voltage ion implanters, miniature X-ray tubes and fast, high level X-ray diodes used to diagnose fusion systems. Pulsed power applications could be developing very high power miniature, sealed; flash x-ray systems and compact CW pulsed power accelerators
Keywords :
Conductors; Diodes; Electric breakdown; Electric potential; Manufacturing; Microscopy; Pulse power systems; Vacuum arcs; Vacuum breakdown; Voltage; Electric field; electric breakdown in vacuum; field emission;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pulsed Power Conference, 2007 16th IEEE International
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0913-6
Electronic_ISBN :
978-1-4244-0914-3
Type :
conf
DOI :
10.1109/PPPS.2007.4652479
Filename :
4652479
Link To Document :
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