Hickling, CJ 
ORCID: 0000-0003-0348-6926, Hall, S ORCID: 0009-0005-7433-7997, Harrison, JR ORCID: 0000-0003-2906-5097, Sharples, R ORCID: 0000-0003-3449-8583 and Bradley, JW ORCID: 0000-0002-8833-0180
(2024)
A field programmable gate array based Langmuir probe system for measurement of plasma parameters at 500 kHz in a high-power impulse magnetron sputtering plasma
Review of Scientific Instruments, 95 (3).
033503-.
ISSN 0034-6748, 1089-7623
Abstract
By utilizing Field Programmable Gate Arrays in a configuration similar to that of the Mirror Langmuir Probe, it is possible to bias a single probe at three precise voltages in sequence. These voltages can be dynamically adjusted in real-time based on the measured plasma electron temperature to ensure the transition region is always sampled. The first results have been obtained by employing this method and have generated real-time outputs of electron temperature, ion saturation current, and floating potential on a low temperature pulsed-DC magnetron at 500 kHz. These results are in good agreement with the analysis of a conventionally swept Langmuir probe. This probe is designed with the intention of being implemented on MAST-U to aid in the study of exhaust physics and enable further investigation into filamentary behavior.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 40 Engineering, 4008 Electrical Engineering, 51 Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 15 Jul 2024 15:14 |
| Last Modified: | 28 Feb 2026 15:47 |
| DOI: | 10.1063/5.0174458 |
| Open Access URL: | https://doi.org/10.1063/5.0174458 |
| Related Websites: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3182887 |
| Disclaimer: | The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate. |
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