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Characterisation of an RF excited argon plasma cathode electron beam gun

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Del Pozo, S; Ribton, C; Smith, DR
Published in: 2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings
January 1, 2014

This work describes the experimental set up used for carrying out spectroscopic measurements in a plasma cathode electron beam (EB) gun. Advantages of plasma cathode guns over thermionic guns are described. The factors affecting electron beam power such as plasma pressure, excitation power and plasma chamber geometry are discussed. The maximum beam current extracted was 53 mA from a 0.5 mm diameter aperture in the plasma chamber. In this work, the electron source is an argon plasma excited at 84 MHz. The pressure in the plasma chamber was measured to be within 0.9 to 1.2 mbar and was controlled by varying gas flow rates. The vacuum chamber was at a pressure of 10-5 mbar.

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Published In

2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings

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Publication Date

January 1, 2014
 

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Del Pozo, S., Ribton, C., & Smith, D. R. (2014). Characterisation of an RF excited argon plasma cathode electron beam gun. In 2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings. https://doi.org/10.1109/IVESC.2014.6892062
Del Pozo, S., C. Ribton, and D. R. Smith. “Characterisation of an RF excited argon plasma cathode electron beam gun.” In 2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings, 2014. https://doi.org/10.1109/IVESC.2014.6892062.
Del Pozo S, Ribton C, Smith DR. Characterisation of an RF excited argon plasma cathode electron beam gun. In: 2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings. 2014.
Del Pozo, S., et al. “Characterisation of an RF excited argon plasma cathode electron beam gun.” 2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings, 2014. Scopus, doi:10.1109/IVESC.2014.6892062.
Del Pozo S, Ribton C, Smith DR. Characterisation of an RF excited argon plasma cathode electron beam gun. 2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings. 2014.

Published In

2014 10th International Vacuum Electron Sources Conference, IVESC 2014 and 2nd International Conference on Emission Electronics, ICEE 2014 - Proceedings

DOI

Publication Date

January 1, 2014