Self-consistency of electron-THF cross sections using electron swarm techniques
The drift velocity and first Townsend ionization coefficient of electrons in gaseous tetrahydrofuran are measured over the range of reduced electric fields 4-1000 Td using a pulsed-Townsend technique. The measured drift velocities and Townsend ionization coefficients are subsequently used, in conjun...
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| Veröffentlicht in: | The Journal of chemical physics 2017-11, Vol.147 (19), p.195103-195103 |
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| container_end_page | 195103 |
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| container_issue | 19 |
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| container_title | The Journal of chemical physics |
| container_volume | 147 |
| creator | Casey, M. J. E. de Urquijo, J. Serkovic Loli, L. N. Cocks, D. G. Boyle, G. J. Jones, D. B. Brunger, M. J. White, R. D. |
| description | The drift velocity and first Townsend ionization coefficient of electrons in gaseous tetrahydrofuran are measured over the range of reduced electric fields 4-1000 Td using a pulsed-Townsend technique. The measured drift velocities and Townsend ionization coefficients are subsequently used, in conjunction with a multi-term Boltzmann equation analysis, as a further discriminative assessment on the accuracy and completeness of a recently proposed set of electron-THF vapor cross sections. In addition, the sensitivity of the transport coefficients to uncertainties in the existing cross sections is presented. As a result of that analysis, a refinement of the momentum transfer cross section for electron-THF scattering is presented, along with modifications to the neutral dissociation and dissociative electron attachment cross sections. With these changes to the cross section database, we find relatively good self-consistency between the measured and simulated drift velocities and Townsend coefficients. |
| doi_str_mv | 10.1063/1.5004717 |
| format | Article |
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As a result of that analysis, a refinement of the momentum transfer cross section for electron-THF scattering is presented, along with modifications to the neutral dissociation and dissociative electron attachment cross sections. 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E.</creatorcontrib><creatorcontrib>de Urquijo, J.</creatorcontrib><creatorcontrib>Serkovic Loli, L. N.</creatorcontrib><creatorcontrib>Cocks, D. G.</creatorcontrib><creatorcontrib>Boyle, G. J.</creatorcontrib><creatorcontrib>Jones, D. B.</creatorcontrib><creatorcontrib>Brunger, M. J.</creatorcontrib><creatorcontrib>White, R. D.</creatorcontrib><title>Self-consistency of electron-THF cross sections using electron swarm techniques</title><title>The Journal of chemical physics</title><addtitle>J Chem Phys</addtitle><description>The drift velocity and first Townsend ionization coefficient of electrons in gaseous tetrahydrofuran are measured over the range of reduced electric fields 4-1000 Td using a pulsed-Townsend technique. The measured drift velocities and Townsend ionization coefficients are subsequently used, in conjunction with a multi-term Boltzmann equation analysis, as a further discriminative assessment on the accuracy and completeness of a recently proposed set of electron-THF vapor cross sections. In addition, the sensitivity of the transport coefficients to uncertainties in the existing cross sections is presented. As a result of that analysis, a refinement of the momentum transfer cross section for electron-THF scattering is presented, along with modifications to the neutral dissociation and dissociative electron attachment cross sections. With these changes to the cross section database, we find relatively good self-consistency between the measured and simulated drift velocities and Townsend coefficients.</description><subject>Boltzmann transport equation</subject><subject>Consistency</subject><subject>Electron attachment</subject><subject>Electron drift velocity</subject><subject>Electron swarms</subject><subject>Electrons</subject><subject>Ionization</subject><subject>Ionization coefficients</subject><subject>Momentum transfer cross section</subject><subject>Physics</subject><subject>Rangefinding</subject><subject>Tetrahydrofuran</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp90E1LAzEQBuAgiq3Vg39AFryosHUm2SSboxRrhUIP1nPIpolu2Q_d7CL9925t7cGDp8Dw8M7kJeQSYYwg2D2OOUAiUR6RIUKqYikUHJMhAMVYCRADchbCGgBQ0uSUDKhCIRBwSBYvrvCxrauQh9ZVdhPVPnKFs21TV_FyNo1sU4cQhX6S9yrqQl69HUQUvkxTRq2z71X-2blwTk68KYK72L8j8jp9XE5m8Xzx9Dx5mMeWJWkbJ1JaxjMGilthRcaN4MIlJqVWJhYzsAYN-JVZ-QyoTJjnUgnGeseMp56NyM0u96Opt3tbXebBuqIwlau7oFEJmQoqQPX0-g9d111T9ddpiiiAJ7wvcURud-rnv43z-qPJS9NsNILetqxR71vu7dU-sctKtzrI31p7cLcDweat2Rb3T9o36AGDeA</recordid><startdate>20171121</startdate><enddate>20171121</enddate><creator>Casey, M. 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D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Self-consistency of electron-THF cross sections using electron swarm techniques</atitle><jtitle>The Journal of chemical physics</jtitle><addtitle>J Chem Phys</addtitle><date>2017-11-21</date><risdate>2017</risdate><volume>147</volume><issue>19</issue><spage>195103</spage><epage>195103</epage><pages>195103-195103</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>The drift velocity and first Townsend ionization coefficient of electrons in gaseous tetrahydrofuran are measured over the range of reduced electric fields 4-1000 Td using a pulsed-Townsend technique. The measured drift velocities and Townsend ionization coefficients are subsequently used, in conjunction with a multi-term Boltzmann equation analysis, as a further discriminative assessment on the accuracy and completeness of a recently proposed set of electron-THF vapor cross sections. In addition, the sensitivity of the transport coefficients to uncertainties in the existing cross sections is presented. As a result of that analysis, a refinement of the momentum transfer cross section for electron-THF scattering is presented, along with modifications to the neutral dissociation and dissociative electron attachment cross sections. 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| ispartof | The Journal of chemical physics, 2017-11, Vol.147 (19), p.195103-195103 |
| issn | 0021-9606 1089-7690 |
| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Boltzmann transport equation Consistency Electron attachment Electron drift velocity Electron swarms Electrons Ionization Ionization coefficients Momentum transfer cross section Physics Rangefinding Tetrahydrofuran |
| title | Self-consistency of electron-THF cross sections using electron swarm techniques |
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