{"title":"冷非平衡大气等离子体中拖缆头电位和拖缆柱电导率的测量。","authors":"A Shashurin, M N Shneider, M Keidar","doi":"10.1088/0963-0252/21/3/034006","DOIUrl":null,"url":null,"abstract":"<p><p>This work presents a simple method for the characterization of streamers developing in cold atmospheric plasma jets. The method is based upon stopping (\"scattering\") of streamer by means of external DC potential in order to determine the potential of the streamer head. The experimental evidence presented in this work does not support the model of the electrically insulated streamer head. On the contrary, it is shown that the electrode potential is transferred to the streamer head along the streamer column to which it is attached with no significant voltage drop. Based on the proposed method, we determine various streamer parameters such as head charge (1-2×10<sup>8</sup> electrons), electrical field in the head vicinity (about 100 kV/cm), average conductivity (10<sup>-2</sup> Ω<sup>-1</sup>cm<sup>-1</sup>) and plasma density of the streamer column (2×10<sup>13</sup> cm<sup>-3</sup>).</p>","PeriodicalId":54599,"journal":{"name":"Plasma Sources Science & Technology","volume":"21 3","pages":""},"PeriodicalIF":3.3000,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1088/0963-0252/21/3/034006","citationCount":"76","resultStr":"{\"title\":\"Measurements of streamer head potential and conductivity of streamer column in the cold nonequilibrium atmospheric plasmas.\",\"authors\":\"A Shashurin, M N Shneider, M Keidar\",\"doi\":\"10.1088/0963-0252/21/3/034006\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>This work presents a simple method for the characterization of streamers developing in cold atmospheric plasma jets. The method is based upon stopping (\\\"scattering\\\") of streamer by means of external DC potential in order to determine the potential of the streamer head. The experimental evidence presented in this work does not support the model of the electrically insulated streamer head. On the contrary, it is shown that the electrode potential is transferred to the streamer head along the streamer column to which it is attached with no significant voltage drop. Based on the proposed method, we determine various streamer parameters such as head charge (1-2×10<sup>8</sup> electrons), electrical field in the head vicinity (about 100 kV/cm), average conductivity (10<sup>-2</sup> Ω<sup>-1</sup>cm<sup>-1</sup>) and plasma density of the streamer column (2×10<sup>13</sup> cm<sup>-3</sup>).</p>\",\"PeriodicalId\":54599,\"journal\":{\"name\":\"Plasma Sources Science & Technology\",\"volume\":\"21 3\",\"pages\":\"\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2012-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1088/0963-0252/21/3/034006\",\"citationCount\":\"76\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasma Sources Science & Technology\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/0963-0252/21/3/034006\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"PHYSICS, FLUIDS & PLASMAS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Sources Science & Technology","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/0963-0252/21/3/034006","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
Measurements of streamer head potential and conductivity of streamer column in the cold nonequilibrium atmospheric plasmas.
This work presents a simple method for the characterization of streamers developing in cold atmospheric plasma jets. The method is based upon stopping ("scattering") of streamer by means of external DC potential in order to determine the potential of the streamer head. The experimental evidence presented in this work does not support the model of the electrically insulated streamer head. On the contrary, it is shown that the electrode potential is transferred to the streamer head along the streamer column to which it is attached with no significant voltage drop. Based on the proposed method, we determine various streamer parameters such as head charge (1-2×108 electrons), electrical field in the head vicinity (about 100 kV/cm), average conductivity (10-2 Ω-1cm-1) and plasma density of the streamer column (2×1013 cm-3).
期刊介绍：
Plasma Sources Science and Technology (PSST) reports on low-temperature plasmas and ionized gases operating over all ranges of gas pressure and plasma density, with varying degrees of ionization. The emphasis of PSST is on the fundamental science of these plasmas, their sources and the physical and chemical processes initiated or sustained by them, as elucidated through theoretical, computational or experimental techniques. PSST also reports on new experimentally or theoretically derived fundamental data (e.g. cross sections, transport coefficients) required for investigation of low temperature plasmas. Reports that relate to the technology and applications of these plasmas should be closely linked to the science and fundamental processes occurring in the plasma state.
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