Liang Zhang, C. Donaldson, Wenlong He, A. Phelps, A. Cross
{"title":"太赫兹陀螺放大器用带调制电极的尖端电子枪","authors":"Liang Zhang, C. Donaldson, Wenlong He, A. Phelps, A. Cross","doi":"10.1109/IRMMW-THz.2019.8874517","DOIUrl":null,"url":null,"abstract":"A terahertz gyrotron traveling wave amplifier (gyro-TWA) centered at 370GHz is under development for the electron paramagnetic resonance (EPR) imaging application. This paper reports the investigation of a triode-type cusp electron gun for the terahertz gyro-TWA. The simulation results showed that at the beam alpha (the ratio of transverse to axial velocity) center of 1.07, an optimal alpha spread of $\\sim 10\\%$ was achieved, when it was operated at a beam voltage of 50 kV and a beam current of 0.35 A.","PeriodicalId":6686,"journal":{"name":"2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)","volume":"28 1","pages":"1-2"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Cusp electron gun with modulation electrode for a THz gyro-amplifier\",\"authors\":\"Liang Zhang, C. Donaldson, Wenlong He, A. Phelps, A. Cross\",\"doi\":\"10.1109/IRMMW-THz.2019.8874517\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A terahertz gyrotron traveling wave amplifier (gyro-TWA) centered at 370GHz is under development for the electron paramagnetic resonance (EPR) imaging application. This paper reports the investigation of a triode-type cusp electron gun for the terahertz gyro-TWA. The simulation results showed that at the beam alpha (the ratio of transverse to axial velocity) center of 1.07, an optimal alpha spread of $\\\\sim 10\\\\%$ was achieved, when it was operated at a beam voltage of 50 kV and a beam current of 0.35 A.\",\"PeriodicalId\":6686,\"journal\":{\"name\":\"2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)\",\"volume\":\"28 1\",\"pages\":\"1-2\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IRMMW-THz.2019.8874517\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IRMMW-THz.2019.8874517","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Cusp electron gun with modulation electrode for a THz gyro-amplifier
A terahertz gyrotron traveling wave amplifier (gyro-TWA) centered at 370GHz is under development for the electron paramagnetic resonance (EPR) imaging application. This paper reports the investigation of a triode-type cusp electron gun for the terahertz gyro-TWA. The simulation results showed that at the beam alpha (the ratio of transverse to axial velocity) center of 1.07, an optimal alpha spread of $\sim 10\%$ was achieved, when it was operated at a beam voltage of 50 kV and a beam current of 0.35 A.