Abstract
A study of the ionization dynamics in the dark space of a stationary cylindrical hollow-cathode discharge has been carried out. In a first-order approximation for the current densities, theoretical expressions have been obtained for the electric field and potential distributions. The dependence of the discharge current density on the forwards voltage drop, argon being the used gas, has been measured under the following experimental conditions: pressure 10-200 Pa, cathode radius 3-6 mm and current density 20-500 A . The thickness of the dark space has been determined from theoretical expressions and by a photographic method, allowing us to discuss the ratio between the effective number of ionizations in the dark space and their total number. Under our experimental conditions, most of the ionizations are produced in the dark space. In this case, the dependence of the electric field on the cathode distance is nearly linear.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
