On the processes of charging the wall of a discharge tube under external illumination
- Authors: Meshchanov А.V.1, Ionikh Y.Z.1
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Affiliations:
- St. Petersburg State University
- Issue: Vol 50, No 8 (2024)
- Pages: 936-945
- Section: LOW TEMPERATURE PLASMA
- URL: https://ruspoj.com/0367-2921/article/view/677461
- DOI: https://doi.org/10.31857/S0367292124080098
- EDN: https://elibrary.ru/OALVSS
- ID: 677461
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Abstract
The breakdown and discharge ignition in discharge tubes with a diameter of about 1 cm and a length of 80 cm in inert gases (neon, argon, krypton, and xenon) at a pressure of about 1 Torr are studied experimentally. The tube is illuminated by radiation from continuous or pulsed light sources in the visible spectrum range. A ramp voltage with a small slope steepness (of about 50 V/s) is applied to the anode of the tube. Previously, the authors established that under these conditions external illumination can increase the breakdown voltage in several times. This effect was explained by the appearance of a charge on the tube wall as a result of photodesorption of electrons from its inner surface. In this work, it is found that charging the wall begins only when the anode potential approaches the breakdown potential measured without illumination. In addition, it is found that during the increase in the voltage on the anode and charging the wall, the anode potential differs from the breakdown potential by a constant and small value (less than 200 V).
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About the authors
А. V. Meshchanov
St. Petersburg State University
Author for correspondence.
Email: y.ionikh@spbu.ru
Russian Federation, St. Petersburg
Yu. Z. Ionikh
St. Petersburg State University
Email: y.ionikh@spbu.ru
Russian Federation, St. Petersburg
References
- Ионих Ю.З. // Физика плазмы. 2020. Т. 46. С. 928.
- Meshchanov A.V., Shishpanov A.I, Bazhin P.S., Ionikh Y.Z. // Plasma Sources Sci. Technol. 2022. V. 31.114010.
- Мещанов А. В., Дьячков С. А., Ионих Ю. З. // Физика плазмы. 2023. Т. 49. С. 924.
- Meshchanov A.V., Shishpanov A.I., Ionikh Y.Z. // J. Phys. D: Appl. Phys. 2024. V. 57. 015204.
- Недоспасов А. В., Новик А. Е. // ЖТФ. 1960. Т. 30. С. 1329.
- Калинин С.А., Капитонова М.А., Матвеев Р.М. и др. // Физика плазмы. 2018. T. 44. C. 870.
- Мещанов А.В., Ионих Ю.З., Акишев Ю.С. // Физика плазмы. 2020. Т. 46. С. 1043
- Грановский В.Л. Электрический ток в газе. Установившейся ток. М.: Наука, 1971.
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