Cavity perturbation technique for determining the presence of molecular ions of helium in a dc discharge plasma
A resonant cavity technique was employed as a probe to determine the presence of molecular ions of helium. The cavity resonance profile was displayed on an oscilloscope and the nature of the perturbation of this resonance observed to determine the nature of ions in a plasma filament placed coaxially...
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| Veröffentlicht in: | J. Chem. Phys., v. 59, no. 2, pp. 866-872 v. 59, no. 2, pp. 866-872, 1973-07, Vol.59 (2), p.866-872 |
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| container_title | J. Chem. Phys., v. 59, no. 2, pp. 866-872 |
| container_volume | 59 |
| creator | Congleton, M. W. Freeman, R. H. Roberts, J. A. |
| description | A resonant cavity technique was employed as a probe to determine the presence of molecular ions of helium. The cavity resonance profile was displayed on an oscilloscope and the nature of the perturbation of this resonance observed to determine the nature of ions in a plasma filament placed coaxially within the cavity. The Slater perturbation technique for resonant cavities was employed to calculate relative ion abundances for each type of helium ion observed to be perturbing the resonant frequency of the cavity. The results of this work indicate that for specific currents, voltages and pressures, for a given geometry discharge tube, various molecular ions of helium can be produced and analyzed by the cavity perturbation technique. |
| doi_str_mv | 10.1063/1.1680106 |
| format | Article |
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W. ; Freeman, R. H. ; Roberts, J. A.</creator><creatorcontrib>Congleton, M. W. ; Freeman, R. H. ; Roberts, J. A. ; Department of Physics, North Texas State University, Denton, Texas 76201</creatorcontrib><description>A resonant cavity technique was employed as a probe to determine the presence of molecular ions of helium. The cavity resonance profile was displayed on an oscilloscope and the nature of the perturbation of this resonance observed to determine the nature of ions in a plasma filament placed coaxially within the cavity. The Slater perturbation technique for resonant cavities was employed to calculate relative ion abundances for each type of helium ion observed to be perturbing the resonant frequency of the cavity. 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A.</creatorcontrib><creatorcontrib>Department of Physics, North Texas State University, Denton, Texas 76201</creatorcontrib><title>Cavity perturbation technique for determining the presence of molecular ions of helium in a dc discharge plasma</title><title>J. Chem. Phys., v. 59, no. 2, pp. 866-872</title><description>A resonant cavity technique was employed as a probe to determine the presence of molecular ions of helium. The cavity resonance profile was displayed on an oscilloscope and the nature of the perturbation of this resonance observed to determine the nature of ions in a plasma filament placed coaxially within the cavity. The Slater perturbation technique for resonant cavities was employed to calculate relative ion abundances for each type of helium ion observed to be perturbing the resonant frequency of the cavity. The results of this work indicate that for specific currents, voltages and pressures, for a given geometry discharge tube, various molecular ions of helium can be produced and analyzed by the cavity perturbation technique.</description><subject>CAVITY RESONATORS- PLASMA DIAGNOSTICS</subject><subject>DISTURBANCES</subject><subject>HELIUM IONS</subject><subject>ION DENSITY</subject><subject>N70200 -Physics-Controlled Thermonuclear Research- Diagnostics</subject><subject>PLASMA</subject><subject>PLASMA DIAGNOSTICS- CAVITY RESONATORS</subject><issn>0021-9606</issn><issn>1089-7690</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1973</creationdate><recordtype>article</recordtype><recordid>eNotUM1qwzAYM2ODdd0OewOz2w7pPtupkxxH2R8UdtnOxrG_NB6J3dnOoG-_lPYkISSBRMg9gxUDKZ7YiskaZnpBFgzqpqhkA5dkAcBZ0UiQ1-QmpR8AYBUvFyRs9J_LB7rHmKfY6uyCpxlN793vhLQLkVrMGEfnnd_R3CPdR0zoDdLQ0TEMaKZBRzrn0lHpcXDTSJ2nmlpDrUum13E3xwadRn1Lrjo9JLw745J8v758bd6L7efbx-Z5Wxi-lrmota2gklC2jIMGDqUQtW1hDZbreo11KyQAWi3RMgaIHBtrWjQtr7qGGbEkD6fekLJTybjjJhO8R5NVWZYNCD6bHk8mE0NKETu1j27U8aAYqOOdiqnzneIfuOBoeg</recordid><startdate>19730715</startdate><enddate>19730715</enddate><creator>Congleton, M. 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A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c256t-8ad707604b120a0204338db050d2a85e8b3600eda6ed110ee2e9dcbecb27f91c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1973</creationdate><topic>CAVITY RESONATORS- PLASMA DIAGNOSTICS</topic><topic>DISTURBANCES</topic><topic>HELIUM IONS</topic><topic>ION DENSITY</topic><topic>N70200 -Physics-Controlled Thermonuclear Research- Diagnostics</topic><topic>PLASMA</topic><topic>PLASMA DIAGNOSTICS- CAVITY RESONATORS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Congleton, M. W.</creatorcontrib><creatorcontrib>Freeman, R. H.</creatorcontrib><creatorcontrib>Roberts, J. A.</creatorcontrib><creatorcontrib>Department of Physics, North Texas State University, Denton, Texas 76201</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>J. Chem. Phys., v. 59, no. 2, pp. 866-872</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Congleton, M. W.</au><au>Freeman, R. H.</au><au>Roberts, J. A.</au><aucorp>Department of Physics, North Texas State University, Denton, Texas 76201</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cavity perturbation technique for determining the presence of molecular ions of helium in a dc discharge plasma</atitle><jtitle>J. Chem. Phys., v. 59, no. 2, pp. 866-872</jtitle><date>1973-07-15</date><risdate>1973</risdate><volume>59</volume><issue>2</issue><spage>866</spage><epage>872</epage><pages>866-872</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><abstract>A resonant cavity technique was employed as a probe to determine the presence of molecular ions of helium. The cavity resonance profile was displayed on an oscilloscope and the nature of the perturbation of this resonance observed to determine the nature of ions in a plasma filament placed coaxially within the cavity. The Slater perturbation technique for resonant cavities was employed to calculate relative ion abundances for each type of helium ion observed to be perturbing the resonant frequency of the cavity. The results of this work indicate that for specific currents, voltages and pressures, for a given geometry discharge tube, various molecular ions of helium can be produced and analyzed by the cavity perturbation technique.</abstract><cop>United States</cop><doi>10.1063/1.1680106</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0021-9606 |
| ispartof | J. Chem. Phys., v. 59, no. 2, pp. 866-872, 1973-07, Vol.59 (2), p.866-872 |
| issn | 0021-9606 1089-7690 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_1680106 |
| source | AIP Digital Archive |
| subjects | CAVITY RESONATORS- PLASMA DIAGNOSTICS DISTURBANCES HELIUM IONS ION DENSITY N70200 -Physics-Controlled Thermonuclear Research- Diagnostics PLASMA PLASMA DIAGNOSTICS- CAVITY RESONATORS |
| title | Cavity perturbation technique for determining the presence of molecular ions of helium in a dc discharge plasma |
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