RF Discharges in Nonequilibrium Atmospheric-Pressure Plasma Jets at Narrow Gap Sizes
Electrical and spectroscopic investigations of an atmospheric-pressure plasma jet ( APPJ) using variable flow rates of helium gas have shown that an alteration of the gas flow rate changes the operation region of stable uniform discharges. By decreasing the gap spacing to values below 400 μm and dec...
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| Veröffentlicht in: | IEEE transactions on plasma science 2012-11, Vol.40 (11), p.2883-2887 |
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| creator | Qurat-ul-Ain Laimer, J. Stori, H. |
| description | Electrical and spectroscopic investigations of an atmospheric-pressure plasma jet ( APPJ) using variable flow rates of helium gas have shown that an alteration of the gas flow rate changes the operation region of stable uniform discharges. By decreasing the gap spacing to values below 400 μm and decreasing the gas flow rate, the uniform discharges can be operated at higher current densities and, consequently, higher radio-frequency power. Time-resolved optical emission spectroscopy has shown that, at low gas flow rates in narrow gaps (below 400 μm), back diffusion is prominent, which influences the stability of the discharge in the jet. An attempt for scaling up an APPJ by doubling its surface area has shown that, with increasing the surface area, the power dissipation cannot be increased, thus limiting the possibility to scale up such type of plasma sources. |
| doi_str_mv | 10.1109/TPS.2012.2219558 |
| format | Article |
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By decreasing the gap spacing to values below 400 μm and decreasing the gas flow rate, the uniform discharges can be operated at higher current densities and, consequently, higher radio-frequency power. Time-resolved optical emission spectroscopy has shown that, at low gas flow rates in narrow gaps (below 400 μm), back diffusion is prominent, which influences the stability of the discharge in the jet. An attempt for scaling up an APPJ by doubling its surface area has shown that, with increasing the surface area, the power dissipation cannot be increased, thus limiting the possibility to scale up such type of plasma sources.</description><identifier>ISSN: 0093-3813</identifier><identifier>EISSN: 1939-9375</identifier><identifier>DOI: 10.1109/TPS.2012.2219558</identifier><identifier>CODEN: ITPSBD</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Atmospheric pressure ; Atmospheric-pressure plasma jet (APPJ) ; Constraining ; Current density ; Diffusion rate ; Discharges (electric) ; Electric power generation ; Fault location ; Flow rate ; gamma -discharge ; Gas flow ; glowlike discharge ; Helium ; metastable state ; Penning ionization ; Plasma jets ; Plasma physics ; Plasma sources ; Radio frequency ; radio-frequency (RF) discharge ; Spectrum analysis ; Surface area</subject><ispartof>IEEE transactions on plasma science, 2012-11, Vol.40 (11), p.2883-2887</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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By decreasing the gap spacing to values below 400 μm and decreasing the gas flow rate, the uniform discharges can be operated at higher current densities and, consequently, higher radio-frequency power. Time-resolved optical emission spectroscopy has shown that, at low gas flow rates in narrow gaps (below 400 μm), back diffusion is prominent, which influences the stability of the discharge in the jet. An attempt for scaling up an APPJ by doubling its surface area has shown that, with increasing the surface area, the power dissipation cannot be increased, thus limiting the possibility to scale up such type of plasma sources.</description><subject>Atmospheric pressure</subject><subject>Atmospheric-pressure plasma jet (APPJ)</subject><subject>Constraining</subject><subject>Current density</subject><subject>Diffusion rate</subject><subject>Discharges (electric)</subject><subject>Electric power generation</subject><subject>Fault location</subject><subject>Flow rate</subject><subject>gamma -discharge</subject><subject>Gas flow</subject><subject>glowlike discharge</subject><subject>Helium</subject><subject>metastable state</subject><subject>Penning ionization</subject><subject>Plasma jets</subject><subject>Plasma physics</subject><subject>Plasma sources</subject><subject>Radio frequency</subject><subject>radio-frequency (RF) discharge</subject><subject>Spectrum analysis</subject><subject>Surface area</subject><issn>0093-3813</issn><issn>1939-9375</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkEtLAzEUhYMoWB97wU3AjZup9yadR5ai1geiRes6JOkdjcx0ajKD6K83peLC1d1853LOx9gRwhgR1Nl89jwWgGIsBKo8r7bYCJVUmZJlvs1GAEpmskK5y_ZifAfASQ5ixOZPU37po3sz4ZUi90v-0C3pY_CNt8EPLT_v2y6u3ih4l80CxTgE4rPGxNbwO-ojNz1_MCF0n_zarPiz_6Z4wHZq00Q6_L377GV6Nb-4ye4fr28vzu8zJ8qyz0wNzpIS1oGtqhyhVMalns5ZIDvJFda1RZiIwtaizC0tFgusJEFusSqUlfvsdPN3FbqPgWKv2zSFmsYsqRuixqJMM9c-EnryD33vhrBM7TRiCUXyU0wSBRvKhS7GQLVeBd-a8KUR9FqzTpr1WrP-1Zwix5uIJ6I_vJBCqVLKH_X5eHM</recordid><startdate>20121101</startdate><enddate>20121101</enddate><creator>Qurat-ul-Ain</creator><creator>Laimer, J.</creator><creator>Stori, H.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20121101</creationdate><title>RF Discharges in Nonequilibrium Atmospheric-Pressure Plasma Jets at Narrow Gap Sizes</title><author>Qurat-ul-Ain ; Laimer, J. ; Stori, H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c277t-af0cbe92bc0b8851079ac093ccb0eb4591ffb10426bf275beddd183e05b1869b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Atmospheric pressure</topic><topic>Atmospheric-pressure plasma jet (APPJ)</topic><topic>Constraining</topic><topic>Current density</topic><topic>Diffusion rate</topic><topic>Discharges (electric)</topic><topic>Electric power generation</topic><topic>Fault location</topic><topic>Flow rate</topic><topic>gamma -discharge</topic><topic>Gas flow</topic><topic>glowlike discharge</topic><topic>Helium</topic><topic>metastable state</topic><topic>Penning ionization</topic><topic>Plasma jets</topic><topic>Plasma physics</topic><topic>Plasma sources</topic><topic>Radio frequency</topic><topic>radio-frequency (RF) discharge</topic><topic>Spectrum analysis</topic><topic>Surface area</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qurat-ul-Ain</creatorcontrib><creatorcontrib>Laimer, J.</creatorcontrib><creatorcontrib>Stori, H.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on plasma science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Qurat-ul-Ain</au><au>Laimer, J.</au><au>Stori, H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>RF Discharges in Nonequilibrium Atmospheric-Pressure Plasma Jets at Narrow Gap Sizes</atitle><jtitle>IEEE transactions on plasma science</jtitle><stitle>TPS</stitle><date>2012-11-01</date><risdate>2012</risdate><volume>40</volume><issue>11</issue><spage>2883</spage><epage>2887</epage><pages>2883-2887</pages><issn>0093-3813</issn><eissn>1939-9375</eissn><coden>ITPSBD</coden><abstract>Electrical and spectroscopic investigations of an atmospheric-pressure plasma jet ( APPJ) using variable flow rates of helium gas have shown that an alteration of the gas flow rate changes the operation region of stable uniform discharges. By decreasing the gap spacing to values below 400 μm and decreasing the gas flow rate, the uniform discharges can be operated at higher current densities and, consequently, higher radio-frequency power. Time-resolved optical emission spectroscopy has shown that, at low gas flow rates in narrow gaps (below 400 μm), back diffusion is prominent, which influences the stability of the discharge in the jet. An attempt for scaling up an APPJ by doubling its surface area has shown that, with increasing the surface area, the power dissipation cannot be increased, thus limiting the possibility to scale up such type of plasma sources.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPS.2012.2219558</doi><tpages>5</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Atmospheric pressure Atmospheric-pressure plasma jet (APPJ) Constraining Current density Diffusion rate Discharges (electric) Electric power generation Fault location Flow rate gamma -discharge Gas flow glowlike discharge Helium metastable state Penning ionization Plasma jets Plasma physics Plasma sources Radio frequency radio-frequency (RF) discharge Spectrum analysis Surface area |
| title | RF Discharges in Nonequilibrium Atmospheric-Pressure Plasma Jets at Narrow Gap Sizes |
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