Micro-discharges in high vacuum
| Autor: | Nagamitsu Yoshimura |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Condensed Matter::Quantum Gases
Argon Materials science business.industry Ultra-high vacuum chemistry.chemical_element Insulator (electricity) Outgassing Adsorption chemistry Physics::Plasma Physics Secondary emission Thermal Electrode Optoelectronics Condensed Matter::Strongly Correlated Electrons business |
| DOI: | 10.1016/b978-0-12-818573-5.00010-4 |
| Popis: | Key-point Micro-discharges over the insulator surface in high vacuum are induced by gas molecules adsorbed on the electrode surfaces. In our experiment, Argon glow cleaning showed a distinct conditioning effect on the electrode surfaces. Micro-discharges over the insulator surface were enhanced by the outgassing from the insulator. The reason is that the insulator surface with a high density of gas molecules causes high yield secondary electron emission, leading to positive charge-up over the insulator surface. Thermal degassing for the electrodes and insulator showed a conditioning effect to reduce micro-discharges between the electrodes and over the insulator surface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|