{"title":"在多环阱中成功产生了高密度的非中性电子等离子体","authors":"T. Mohamed","doi":"10.1080/10519990802259460","DOIUrl":null,"url":null,"abstract":"Accumulation of electrons to form dense electron plasma in a modified Malmberg–Penning trap, a multi-ring trap (MRT), is investigated. Under ultra-high vacuum conditions, the electron plasma is confined radially using a 5 T magnetic field and axially by using a harmonic potential well of depth 1000 V. Electron plasma of density higher than 1×1011 cm−3 was confined in the MRT, and the number of trapped electrons can be controlled by changing the trap depth and the trap length. A longitudinal plasma temperature of 0.1 eV was measured, and the cyclotron cooling time was found to scale as 4.5/B 2 (T).","PeriodicalId":54600,"journal":{"name":"Plasma Devices and Operations","volume":"49 1","pages":"181 - 188"},"PeriodicalIF":0.0000,"publicationDate":"2008-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Successful production of non-neutral electron plasma of high density in the multi-ring trap\",\"authors\":\"T. Mohamed\",\"doi\":\"10.1080/10519990802259460\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Accumulation of electrons to form dense electron plasma in a modified Malmberg–Penning trap, a multi-ring trap (MRT), is investigated. Under ultra-high vacuum conditions, the electron plasma is confined radially using a 5 T magnetic field and axially by using a harmonic potential well of depth 1000 V. Electron plasma of density higher than 1×1011 cm−3 was confined in the MRT, and the number of trapped electrons can be controlled by changing the trap depth and the trap length. A longitudinal plasma temperature of 0.1 eV was measured, and the cyclotron cooling time was found to scale as 4.5/B 2 (T).\",\"PeriodicalId\":54600,\"journal\":{\"name\":\"Plasma Devices and Operations\",\"volume\":\"49 1\",\"pages\":\"181 - 188\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-08-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Plasma Devices and Operations\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/10519990802259460\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Devices and Operations","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10519990802259460","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Successful production of non-neutral electron plasma of high density in the multi-ring trap
Accumulation of electrons to form dense electron plasma in a modified Malmberg–Penning trap, a multi-ring trap (MRT), is investigated. Under ultra-high vacuum conditions, the electron plasma is confined radially using a 5 T magnetic field and axially by using a harmonic potential well of depth 1000 V. Electron plasma of density higher than 1×1011 cm−3 was confined in the MRT, and the number of trapped electrons can be controlled by changing the trap depth and the trap length. A longitudinal plasma temperature of 0.1 eV was measured, and the cyclotron cooling time was found to scale as 4.5/B 2 (T).
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