{"title":"利用高电流密度逆流电子束通过等离子体三波混频产生的毫米波辐射","authors":"J. Santoru, R. Schumacher","doi":"10.1109/PLASMA.1989.166239","DOIUrl":null,"url":null,"abstract":"Electron-beam-excited, counterpropagating electron plasma wave (EPWs) interact nonlinearly through the plasma three-wave mixing process to generate electromagnetic radiation at twice the plasma frequency. Radiation saturation is not observed up to beam current densities of 2 A/cm/sup 2/, where the peak power is 8 kW. To investigate the saturation mechanism and maximize the radiation generation efficiency, plasma-cathode electron beams, which can provide up to 20 A/cm/sup 2/ at 30 kV, have been installed. The counterpropagating EPW topology required for three-wave mixing was created using a single high-current-density electron beam by means of a backscattering process. When the background plasma was generated by electron-beam-gas impact ionization, the current density threshold for single-beam radiation emission was about 12 A/cm/sup 2/. Scaling experiments have explored the two-beam and single-beam radiation generation processes.<<ETX>>","PeriodicalId":165717,"journal":{"name":"IEEE 1989 International Conference on Plasma Science","volume":"105 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1989-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Millimeter-wave radiation generated via plasma three-wave mixing using high-current density counter-streaming electron beams\",\"authors\":\"J. Santoru, R. Schumacher\",\"doi\":\"10.1109/PLASMA.1989.166239\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Electron-beam-excited, counterpropagating electron plasma wave (EPWs) interact nonlinearly through the plasma three-wave mixing process to generate electromagnetic radiation at twice the plasma frequency. Radiation saturation is not observed up to beam current densities of 2 A/cm/sup 2/, where the peak power is 8 kW. To investigate the saturation mechanism and maximize the radiation generation efficiency, plasma-cathode electron beams, which can provide up to 20 A/cm/sup 2/ at 30 kV, have been installed. The counterpropagating EPW topology required for three-wave mixing was created using a single high-current-density electron beam by means of a backscattering process. When the background plasma was generated by electron-beam-gas impact ionization, the current density threshold for single-beam radiation emission was about 12 A/cm/sup 2/. Scaling experiments have explored the two-beam and single-beam radiation generation processes.<<ETX>>\",\"PeriodicalId\":165717,\"journal\":{\"name\":\"IEEE 1989 International Conference on Plasma Science\",\"volume\":\"105 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-05-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE 1989 International Conference on Plasma Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PLASMA.1989.166239\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE 1989 International Conference on Plasma Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PLASMA.1989.166239","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Millimeter-wave radiation generated via plasma three-wave mixing using high-current density counter-streaming electron beams
Electron-beam-excited, counterpropagating electron plasma wave (EPWs) interact nonlinearly through the plasma three-wave mixing process to generate electromagnetic radiation at twice the plasma frequency. Radiation saturation is not observed up to beam current densities of 2 A/cm/sup 2/, where the peak power is 8 kW. To investigate the saturation mechanism and maximize the radiation generation efficiency, plasma-cathode electron beams, which can provide up to 20 A/cm/sup 2/ at 30 kV, have been installed. The counterpropagating EPW topology required for three-wave mixing was created using a single high-current-density electron beam by means of a backscattering process. When the background plasma was generated by electron-beam-gas impact ionization, the current density threshold for single-beam radiation emission was about 12 A/cm/sup 2/. Scaling experiments have explored the two-beam and single-beam radiation generation processes.<>
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
