Influence of prebreakdown currents on the electric strength of vacuum gaps at large electrode areas

Nikolai N. Koval; Yuri D. Korolev; P. M. Shchanin

doi:10.1117/12.174607

1 May 1994 Influence of prebreakdown currents on the electric strength of vacuum gaps at large electrode areas

Nikolai N. Koval, Yuri D. Korolev, P. M. Shchanin

Proceedings Volume 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum; (1994) https://doi.org/10.1117/12.174607
Event: XVI International Symposium on Discharges and Electrical Insulation in Vacuum, 1994, Moscow-St. Petersburg, Russian Federation

Abstract

Electrode systems with electrode areas exceeding a few square meters and interelectrode gap spasings reaching several tens of centimeters are used in physical experiments for the production of large-cross-section charged-particle beams as well as for the separation and deflection of the particles. Under commercial vacuum condition, the breakdown voltage is strongly affected by the electrode size and surface condition and the electrode separation. Thus, for a 1-mm gap, increasing the electrode area a hundred times reduces the breakdown voltage by about one half, ill other conditions being the same. Large and intricately shaped electrodes make the system degasing and conditic'ning more complicated. Prebreakdown currents produce an extra load on the power supply circuits and, in pulsed accelerators, they distort the beam currents waveform and often difurb the normal operation of the accelerator. This has stimulated the study aimed at refining the factors affecting the breakdown voltage, elucidating the mechanism for the prebreakdown conductance in the electrode gap, and developing the methods for suppressing prebreakdcwn currents.

Citation Download Citation

Nikolai N. Koval, Yuri D. Korolev, and P. M. Shchanin "Influence of prebreakdown currents on the electric strength of vacuum gaps at large electrode areas", Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); https://doi.org/10.1117/12.174607

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available