A Study of Current Controlled Discharge in a Nitrogen Filled Tube
Time dependencies of the electrical resistance and electron density evolution in the discharge in a tube, with nitrogen at different pressures, with a diameter of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mr...
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MDPI AG
2021
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oai:doaj.org-article:2663b3763d8e4d3996be39db66ff7fad2021-11-11T15:17:40ZA Study of Current Controlled Discharge in a Nitrogen Filled Tube10.3390/app1121102532076-3417https://doaj.org/article/2663b3763d8e4d3996be39db66ff7fad2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10253https://doaj.org/toc/2076-3417Time dependencies of the electrical resistance and electron density evolution in the discharge in a tube, with nitrogen at different pressures, with a diameter of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>9.2</mn><mspace width="0.166667em"></mspace><mi>mm</mi></mrow></semantics></math></inline-formula> and a length of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>10</mn><mspace width="0.166667em"></mspace><mi>cm</mi></mrow></semantics></math></inline-formula> were studied. A current pulse with an amplitude of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>500</mn><mspace width="0.166667em"></mspace><mi mathvariant="normal">A</mi></mrow></semantics></math></inline-formula> and duration of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>10</mn><mspace width="0.166667em"></mspace><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">s</mi></mrow></semantics></math></inline-formula> has created the discharge in the tube. Instantaneous electron densities are estimated from the interference pattern in Mach–Zehnder interferometer using femtosecond Ti: sapphire laser beam. Laboratory results are compared with results of computer modelling by MHD computer codes NPINCH and ZSTAR. Time development of the discharge resistance according to experiment is measured and evaluated. Minimum measurable value of the electron density in the experiment is determined as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mn>2</mn><mo>×</mo><msup><mn>10</mn><mn>15</mn></msup></mrow><mspace width="0.166667em"></mspace><msup><mi>cm</mi><mrow><mo>−</mo><mn>3</mn></mrow></msup></mrow></semantics></math></inline-formula>.Michal NevrklaJakub HubnerJiri SismaPavel VrbaMiroslava VrbovaNadezhda BobrovaPavel SasorovAlexandr JancarekMDPI AGarticleplasmadischargeinterferometryMHD simulationmagnetohydrodynamicsTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10253, p 10253 (2021) |
| institution |
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| collection |
DOAJ |
| language |
EN |
| topic |
plasma discharge interferometry MHD simulation magnetohydrodynamics Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 |
| spellingShingle |
plasma discharge interferometry MHD simulation magnetohydrodynamics Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Michal Nevrkla Jakub Hubner Jiri Sisma Pavel Vrba Miroslava Vrbova Nadezhda Bobrova Pavel Sasorov Alexandr Jancarek A Study of Current Controlled Discharge in a Nitrogen Filled Tube |
| description |
Time dependencies of the electrical resistance and electron density evolution in the discharge in a tube, with nitrogen at different pressures, with a diameter of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>9.2</mn><mspace width="0.166667em"></mspace><mi>mm</mi></mrow></semantics></math></inline-formula> and a length of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>10</mn><mspace width="0.166667em"></mspace><mi>cm</mi></mrow></semantics></math></inline-formula> were studied. A current pulse with an amplitude of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>500</mn><mspace width="0.166667em"></mspace><mi mathvariant="normal">A</mi></mrow></semantics></math></inline-formula> and duration of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>10</mn><mspace width="0.166667em"></mspace><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">s</mi></mrow></semantics></math></inline-formula> has created the discharge in the tube. Instantaneous electron densities are estimated from the interference pattern in Mach–Zehnder interferometer using femtosecond Ti: sapphire laser beam. Laboratory results are compared with results of computer modelling by MHD computer codes NPINCH and ZSTAR. Time development of the discharge resistance according to experiment is measured and evaluated. Minimum measurable value of the electron density in the experiment is determined as <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mrow><mn>2</mn><mo>×</mo><msup><mn>10</mn><mn>15</mn></msup></mrow><mspace width="0.166667em"></mspace><msup><mi>cm</mi><mrow><mo>−</mo><mn>3</mn></mrow></msup></mrow></semantics></math></inline-formula>. |
| format |
article |
| author |
Michal Nevrkla Jakub Hubner Jiri Sisma Pavel Vrba Miroslava Vrbova Nadezhda Bobrova Pavel Sasorov Alexandr Jancarek |
| author_facet |
Michal Nevrkla Jakub Hubner Jiri Sisma Pavel Vrba Miroslava Vrbova Nadezhda Bobrova Pavel Sasorov Alexandr Jancarek |
| author_sort |
Michal Nevrkla |
| title |
A Study of Current Controlled Discharge in a Nitrogen Filled Tube |
| title_short |
A Study of Current Controlled Discharge in a Nitrogen Filled Tube |
| title_full |
A Study of Current Controlled Discharge in a Nitrogen Filled Tube |
| title_fullStr |
A Study of Current Controlled Discharge in a Nitrogen Filled Tube |
| title_full_unstemmed |
A Study of Current Controlled Discharge in a Nitrogen Filled Tube |
| title_sort |
study of current controlled discharge in a nitrogen filled tube |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/2663b3763d8e4d3996be39db66ff7fad |
| work_keys_str_mv |
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| _version_ |
1718435546100924416 |