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Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma

This study investigated the temporal profiles of electron temperature and number density in rectified DC air discharge generated with a 50 Hz step-up transformer. An in-house built triple Langmuir probe and circuitry were used to diagnose the plasma parameters as a function of input voltage and fill...

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Main Authors: Farooq, M.U., Ali, A., Qayyum, A., Naz, M.Y., Khan, Y., Shukrullah, S., Ghaffar, C.A.
Format: Article
Published: Maik Nauka Publishing / Springer SBM 2015
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958155000&doi=10.1134%2fS0018143915040086&partnerID=40&md5=961880371c3457e9964ae517333eb7d5
http://eprints.utp.edu.my/31411/
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spelling my.utp.eprints.314112022-03-26T03:19:07Z Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma Farooq, M.U. Ali, A. Qayyum, A. Naz, M.Y. Khan, Y. Shukrullah, S. Ghaffar, C.A. This study investigated the temporal profiles of electron temperature and number density in rectified DC air discharge generated with a 50 Hz step-up transformer. An in-house built triple Langmuir probe and circuitry were used to diagnose the plasma parameters as a function of input voltage and filling gas pressure. A tungsten metal wire capable of withstanding the high temperatures was used as probe tip material. The temporal profiles revealed an increase in electron temperature with input voltage in the range of 380 to 450 V, whereas, an inverse relation between number density and input voltage was evident in the given work. The observed trend in the plasma parameters was absolutely reversed in case of the filling gas pressure. The electron temperature linearly decreased with an increase in pressure from 1 to 4 mbar, whereas a linear increase in number density with pressure was seen in the temporal profiles. Finally, it was concluded that the results for the tested plasma parameters were consistent and the in-house built probe functioned well in DC discharge for the used range of voltage and filling pressure. © 2015 Pleiades Publishing, Ltd. Maik Nauka Publishing / Springer SBM 2015 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958155000&doi=10.1134%2fS0018143915040086&partnerID=40&md5=961880371c3457e9964ae517333eb7d5 Farooq, M.U. and Ali, A. and Qayyum, A. and Naz, M.Y. and Khan, Y. and Shukrullah, S. and Ghaffar, C.A. (2015) Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma. High Energy Chemistry, 49 (4). pp. 286-293. http://eprints.utp.edu.my/31411/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description This study investigated the temporal profiles of electron temperature and number density in rectified DC air discharge generated with a 50 Hz step-up transformer. An in-house built triple Langmuir probe and circuitry were used to diagnose the plasma parameters as a function of input voltage and filling gas pressure. A tungsten metal wire capable of withstanding the high temperatures was used as probe tip material. The temporal profiles revealed an increase in electron temperature with input voltage in the range of 380 to 450 V, whereas, an inverse relation between number density and input voltage was evident in the given work. The observed trend in the plasma parameters was absolutely reversed in case of the filling gas pressure. The electron temperature linearly decreased with an increase in pressure from 1 to 4 mbar, whereas a linear increase in number density with pressure was seen in the temporal profiles. Finally, it was concluded that the results for the tested plasma parameters were consistent and the in-house built probe functioned well in DC discharge for the used range of voltage and filling pressure. © 2015 Pleiades Publishing, Ltd.
format Article
author Farooq, M.U.
Ali, A.
Qayyum, A.
Naz, M.Y.
Khan, Y.
Shukrullah, S.
Ghaffar, C.A.
spellingShingle Farooq, M.U.
Ali, A.
Qayyum, A.
Naz, M.Y.
Khan, Y.
Shukrullah, S.
Ghaffar, C.A.
Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma
author_facet Farooq, M.U.
Ali, A.
Qayyum, A.
Naz, M.Y.
Khan, Y.
Shukrullah, S.
Ghaffar, C.A.
author_sort Farooq, M.U.
title Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma
title_short Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma
title_full Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma
title_fullStr Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma
title_full_unstemmed Time function triple Langmuir probe measurements in low frequency pulsed DC discharge plasma
title_sort time function triple langmuir probe measurements in low frequency pulsed dc discharge plasma
publisher Maik Nauka Publishing / Springer SBM
publishDate 2015
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958155000&doi=10.1134%2fS0018143915040086&partnerID=40&md5=961880371c3457e9964ae517333eb7d5
http://eprints.utp.edu.my/31411/
_version_ 1738657243903033344
score 13.211869

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