Electron impact dissociation cross sections for C2F6
Absolute total dissociation cross sections for electron impact, sigma,diss, from 8 to 700 eV are reported for C2F6. A dense set of data was obtained in the technologically important 8-30 eV energy range relevant to modelling the type of plasmas used in both fundamental and applied scientific investi...
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| Veröffentlicht in: | Journal of physics. D, Applied physics Applied physics, 2006-10, Vol.39 (20), p.4393-4399 |
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| container_issue | 20 |
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| container_title | Journal of physics. D, Applied physics |
| container_volume | 39 |
| creator | Flaherty, D W Kasper, M A Baio, J E Graves, D B Winters, H F Winstead, C McKoy, V |
| description | Absolute total dissociation cross sections for electron impact, sigma,diss, from 8 to 700 eV are reported for C2F6. A dense set of data was obtained in the technologically important 8-30 eV energy range relevant to modelling the type of plasmas used in both fundamental and applied scientific investigations. The threshold for dissociation was found to be 12.0 plus/minus 0.2 eV and appears to be associated with a Rydberg state. Estimated values for the total neutral dissociation cross section, sigma neut diss, were obtained by subtracting the ionization cross sections (all ionizing events cause dissociation) from the total dissociation cross section. It is shown that a calibration error in a paper by one of us (HFW) caused a distortion of several previous investigations. When the data from the present work are used to recalibrate data from swarm experiments, agreement becomes quite reasonable. There is now a consistent set of data obtained from several investigators which describe the dissociation of C2F6. Neutral dissociation cross sections are obtained from electron-impact excitation calculations and found to be in reasonable agreement with measurements over most of the energy range. |
| doi_str_mv | 10.1088/0022-3727/39/20/015 |
| format | Article |
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A dense set of data was obtained in the technologically important 8-30 eV energy range relevant to modelling the type of plasmas used in both fundamental and applied scientific investigations. The threshold for dissociation was found to be 12.0 plus/minus 0.2 eV and appears to be associated with a Rydberg state. Estimated values for the total neutral dissociation cross section, sigma neut diss, were obtained by subtracting the ionization cross sections (all ionizing events cause dissociation) from the total dissociation cross section. It is shown that a calibration error in a paper by one of us (HFW) caused a distortion of several previous investigations. When the data from the present work are used to recalibrate data from swarm experiments, agreement becomes quite reasonable. There is now a consistent set of data obtained from several investigators which describe the dissociation of C2F6. 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There is now a consistent set of data obtained from several investigators which describe the dissociation of C2F6. Neutral dissociation cross sections are obtained from electron-impact excitation calculations and found to be in reasonable agreement with measurements over most of the energy range.</description><subject>Exact sciences and technology</subject><subject>Ionization of plasmas</subject><subject>Physics</subject><subject>Physics of gases, plasmas and electric discharges</subject><subject>Physics of plasmas and electric discharges</subject><subject>Plasma properties</subject><issn>0022-3727</issn><issn>1361-6463</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNptkLtOwzAUhi0EEiXwBCxZYEBKc3yJHY-oagGpEgvM1qnjSEZpHex04O1x1aoLTOf2nX_4CLmnMKfQtjUAYxVXTNVc1wxqoM0FmVEuaSWF5JdkdiauyU1KXwDQyJbOiFgOzk4x7Eq_HdFOZedTCtbj5PPOxpBSmTKRp1T2IZYLtpK35KrHIbm7Uy3I52r5sXit1u8vb4vndeUF0KnibNMBMnCKdqB4ozbCKUTZoQLoOUpUglNse61R5gah26B2QoCjKHjDC_J4zB1j-N67NJmtT9YNA-5c2CfDdMMFzdEFeTiBmCwOfcSd9cmM0W8x_hja0lazBjL3dOR8GM_XgxpzUGO4NgxMlmfGrs_w_C9MwRyM__fEfwGXxG-e</recordid><startdate>20061021</startdate><enddate>20061021</enddate><creator>Flaherty, D W</creator><creator>Kasper, M A</creator><creator>Baio, J E</creator><creator>Graves, D B</creator><creator>Winters, H F</creator><creator>Winstead, C</creator><creator>McKoy, V</creator><general>IOP Publishing</general><general>Institute of Physics</general><scope>IQODW</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20061021</creationdate><title>Electron impact dissociation cross sections for C2F6</title><author>Flaherty, D W ; Kasper, M A ; Baio, J E ; Graves, D B ; Winters, H F ; Winstead, C ; McKoy, V</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i401t-32bd0a20e71d07357b4e7aa6da700f3a6a7431a8f99a631aa0dba9e440e1a4353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Exact sciences and technology</topic><topic>Ionization of plasmas</topic><topic>Physics</topic><topic>Physics of gases, plasmas and electric discharges</topic><topic>Physics of plasmas and electric discharges</topic><topic>Plasma properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Flaherty, D W</creatorcontrib><creatorcontrib>Kasper, M A</creatorcontrib><creatorcontrib>Baio, J E</creatorcontrib><creatorcontrib>Graves, D B</creatorcontrib><creatorcontrib>Winters, H F</creatorcontrib><creatorcontrib>Winstead, C</creatorcontrib><creatorcontrib>McKoy, V</creatorcontrib><collection>Pascal-Francis</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of physics. 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A dense set of data was obtained in the technologically important 8-30 eV energy range relevant to modelling the type of plasmas used in both fundamental and applied scientific investigations. The threshold for dissociation was found to be 12.0 plus/minus 0.2 eV and appears to be associated with a Rydberg state. Estimated values for the total neutral dissociation cross section, sigma neut diss, were obtained by subtracting the ionization cross sections (all ionizing events cause dissociation) from the total dissociation cross section. It is shown that a calibration error in a paper by one of us (HFW) caused a distortion of several previous investigations. When the data from the present work are used to recalibrate data from swarm experiments, agreement becomes quite reasonable. There is now a consistent set of data obtained from several investigators which describe the dissociation of C2F6. 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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Exact sciences and technology Ionization of plasmas Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Plasma properties |
| title | Electron impact dissociation cross sections for C2F6 |
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