The Dielectric Strength of Cryogenic Fluids and Solid Insulators

Burnier, P.; Moreau, Jennifer L.; Lehmann, Jörg

doi:10.1007/978-1-4757-0513-3_12

Cited by 3 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With sphere-sphere electrodes, Gerhold 70 measured a rise in the breakdown field strength with pressure above one atmosphere. The same trend is observed by Burnier et al 74 who also utilized sphere-sphere electrodes and performed measurements above one atmosphere.…”

Section: Pressure and Temperature Dependencesupporting

confidence: 78%

A study of DC electrical breakdown in liquid helium through analysis of the empirical breakdown field distributions

Phan,

Wei,

Beaumont

et al. 2020

Preprint

View full text Add to dashboard Cite

We report results from a study on electrical breakdown in liquid helium using near-uniform-field stainless steel electrodes with a stressed area of ∼0.725 cm 2 . The distribution of the breakdown field is obtained for temperatures between 1.7 K and 4.0 K, pressures between the saturated vapor pressure and 626 Torr, and with electrodes of different surface polishes. A data-based approach for determining the electrode-surfacearea scaling of the breakdown field is presented. The dependence of the breakdown probability on the field strength as extracted from the breakdown field distribution data is used to show that breakdown is a surface phenomenon closely correlated with Fowler-Nordheim field emission from asperities on the cathode. We show that the results from this analysis provides an explanation for the supposed electrode gap-size effect and also allows for a determination of the breakdown-field distribution for arbitrary shaped electrodes. Most importantly, the analysis method presented in this work can be extended to other noble liquids to explore the dependencies for electrical breakdown in those media.1 Ref. 7 reports measurements at 0.4 K

show abstract

Section: Pressure and Temperature Dependencesupporting

confidence: 78%