2005•IEEE Conference Record - Abstracts. PPPS-2001 Pulsed Power Plasma Science 2001. 28th IEEE International Conference on Plasma Science and 13th IEEE International Pulsed Power Conference (Cat. No.01CH37255)Requires access
Effect of Finite Length on the Current-Voltage Characteristic of a Cylindrical Langmuir Probe
Alan R. Hoskinson, Noah Hershkowitz
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Abstract
Summary form only given. Cylindrical Langmuir probes are widely used in a variety of applications. Nevertheless, many non-ideal characteristics have not been fully investigated. In this work, we examine the relationships between probe length, radius, and plasma Debye length and their effect on experimentally obtained I-V curves. The plasmas investigated are low pressure weakly collisional plasmas generated by hot filaments. Plasma density and temperature errors due to these measurements are estimated for several different fitting methods. Probe construction methods to limit the non-idealities are suggested