{"title":"太赫兹线束管电子枪及聚焦结构设计","authors":"M. Read, C. Kory, J. Booske, R. Ives","doi":"10.1109/IVELEC.2008.4556330","DOIUrl":null,"url":null,"abstract":"Results are reported for numerical modeling of concepts for non-circular beam formation for near-THz frequency TWTpsilas. Several methods for beam compression were examined, and one method appears promising for producing a 12 kV, 8 mA beam with a cross section 70 times 160 microns, while keeping the cathode loading to about 59 A/cm2. This would be suitable for a 650 GHz TWT. The beam loading is significantly lower than in similar frequency backward wave oscillators (BWO) and should result in much longer cathode lifetimes.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"77 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Design of electron guns and focusing structures for THz linear beam tubes\",\"authors\":\"M. Read, C. Kory, J. Booske, R. Ives\",\"doi\":\"10.1109/IVELEC.2008.4556330\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Results are reported for numerical modeling of concepts for non-circular beam formation for near-THz frequency TWTpsilas. Several methods for beam compression were examined, and one method appears promising for producing a 12 kV, 8 mA beam with a cross section 70 times 160 microns, while keeping the cathode loading to about 59 A/cm2. This would be suitable for a 650 GHz TWT. The beam loading is significantly lower than in similar frequency backward wave oscillators (BWO) and should result in much longer cathode lifetimes.\",\"PeriodicalId\":113971,\"journal\":{\"name\":\"2008 IEEE International Vacuum Electronics Conference\",\"volume\":\"77 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-04-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 IEEE International Vacuum Electronics Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IVELEC.2008.4556330\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 IEEE International Vacuum Electronics Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IVELEC.2008.4556330","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
报道了近太赫兹频率twsilas非圆波束形成概念的数值模拟结果。研究人员研究了几种光束压缩方法，其中一种方法有望产生12 kV, 8 mA的光束，其横截面为70乘以160微米，同时将阴极负载保持在59 a /cm2左右。这将适用于650 GHz行波管。波束负载明显低于类似频率的反向波振荡器(BWO)，并应导致更长的阴极寿命。
Design of electron guns and focusing structures for THz linear beam tubes
Results are reported for numerical modeling of concepts for non-circular beam formation for near-THz frequency TWTpsilas. Several methods for beam compression were examined, and one method appears promising for producing a 12 kV, 8 mA beam with a cross section 70 times 160 microns, while keeping the cathode loading to about 59 A/cm2. This would be suitable for a 650 GHz TWT. The beam loading is significantly lower than in similar frequency backward wave oscillators (BWO) and should result in much longer cathode lifetimes.
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