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2008 IEEE International Vacuum Electronics Conference最新文献

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The experimental verification of ELECTRON OPTICS DESIGNER 电子光学设计器的实验验证
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556484
Tao Huang, Q. Hu, Zhonghai Yang, Bin Li, Jianqing Li, Xiaolin Jin, Xiaofang Zhu, Yu-Lu Hu, Li Xu, Junjian Ma, Li Liao, GuoXian He
{"title":"The experimental verification of ELECTRON OPTICS DESIGNER","authors":"Tao Huang, Q. Hu, Zhonghai Yang, Bin Li, Jianqing Li, Xiaolin Jin, Xiaofang Zhu, Yu-Lu Hu, Li Xu, Junjian Ma, Li Liao, GuoXian He","doi":"10.1109/IVELEC.2008.4556484","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556484","url":null,"abstract":"Electron optics designer (EOS) (Tao Huang et al., 2007) is a fully three-dimensional (3D) finite- element (FE) steady- state trajectory code, which is a solver of electrostatic field and trajectory that takes into account secondary electron, space-charge effect and external magnetic field. To validate the code, this paper illustrated two typical experimental verifications of electron gun and collector.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131914975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The exact excitation equations for the cavity with finite conductions of the walls 具有有限壁导的空腔的精确激励方程
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556532
A. A. Kurayev, T. L. Popkova, A. K. Sinitsyn
{"title":"The exact excitation equations for the cavity with finite conductions of the walls","authors":"A. A. Kurayev, T. L. Popkova, A. K. Sinitsyn","doi":"10.1109/IVELEC.2008.4556532","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556532","url":null,"abstract":"The exact excitation equations for unloaded cavity resonator with finite conductions of the walls were received by projection method.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128323641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Secondary emission property of Y2O3-Lu2O3-Mo cathode Y2O3-Lu2O3-Mo阴极的二次发射性能
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556347
Jinshu Wang, W. Liu, Fei Gao, Yiman Wang, Meiling Zhou
{"title":"Secondary emission property of Y2O3-Lu2O3-Mo cathode","authors":"Jinshu Wang, W. Liu, Fei Gao, Yiman Wang, Meiling Zhou","doi":"10.1109/IVELEC.2008.4556347","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556347","url":null,"abstract":"A RE<sub>2</sub>O<sub>3</sub>-Mo cathode which contains Lu<sub>2</sub>O<sub>3</sub> and Y<sub>2</sub>O<sub>3</sub> with a certain weight ratio was made using a Sol-Gel technique and the spark plasma sintering technique. The maximum secondary emission yield (deltam) of this cathode could reach 4.6 while the activation temperature is only 900degC.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128427478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nonlinear 3D magnetostatic solver in beam optics analyzer 光束光学分析仪中的非线性三维静磁求解器
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556403
T. Bui, R. Ives
{"title":"Nonlinear 3D magnetostatic solver in beam optics analyzer","authors":"T. Bui, R. Ives","doi":"10.1109/IVELEC.2008.4556403","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556403","url":null,"abstract":"Calabazas Creek Research, Inc. (CCR) has included a nonlinear magnetostatic vector finite-element solver in its trajectory and particle-in-cell (PIC) code, Beam Optics Analyzer. With its seamless integration and intuitive graphical user interface, the new 3D magnetostatic field solver in BOA will help to design electron guns with complex coil geometries and high power beams that generate self magnetic fields. Convergence of the nonlinear magnetic solver is demonstrated. The effect of the self field on the electron beam is described.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"39 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116656916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
End-to-end performance evaluation methodology for TWTA-based satellite flexible payloads 基于twta的卫星柔性有效载荷端到端性能评估方法
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556438
M. Aloisio, P. Angeletti, E. Colzi, S. D'addio, R.O. Balague, E. Casini, F. Coromina
{"title":"End-to-end performance evaluation methodology for TWTA-based satellite flexible payloads","authors":"M. Aloisio, P. Angeletti, E. Colzi, S. D'addio, R.O. Balague, E. Casini, F. Coromina","doi":"10.1109/IVELEC.2008.4556438","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556438","url":null,"abstract":"Reconfigurability of the RF power among different beams and channels is of primary interest in communications satellite systems for its potentiality in maximizing the payload bandwidth and power utilization over the satellite lifetime. The performance of reconfigurable payloads strictly depends on the architecture of the high-power section. We will compare two multi-amplifier architectures, one based on bias-adjustable Traveling-wave Tubes, the other based on Multiport Amplifiers. These architectures will be traded-off against their performance in terms of power flexibility and overall DC power efficiency by means of a suitable end-to end figure-of-merit.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123679593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Broadband gyro-TWA with thermionic cusp gun: Simulations and comparison with experiment 带热离子尖头枪的宽带陀螺- twa:仿真与实验比较
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556431
C. Whyte, A. Young, D. Rowlands, C. Robertson, A. Phelps, Wenlong He, A. Cross, K. Ronald
{"title":"Broadband gyro-TWA with thermionic cusp gun: Simulations and comparison with experiment","authors":"C. Whyte, A. Young, D. Rowlands, C. Robertson, A. Phelps, Wenlong He, A. Cross, K. Ronald","doi":"10.1109/IVELEC.2008.4556431","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556431","url":null,"abstract":"The latest results of experimental investigations of an X-band gyro-TWA using a cusp gun and a helically corrugated interaction region are presented. Results will be presented from two experimental investigations, one using a 150 kV, 35 A beam from a cold field emission cusp gun and one with a 150 kV, 70 A beam from a thermionic cusp gun. Designs for a gridded thermionic cusp gun currently under construction will also be presented. Numerical investigations of the gyro-TWA have been completed and used to predict the saturated and small signal gain of several gyro-TWA devices. These predictions are compared with the experimental results obtained.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"242 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124665647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
MEMS-based slow-wave sheet-beam amplifier 基于mems的慢波片波束放大器
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556413
D. Holstein, M. Dokmeci, Chia-Ling Chen, M. Tracy
{"title":"MEMS-based slow-wave sheet-beam amplifier","authors":"D. Holstein, M. Dokmeci, Chia-Ling Chen, M. Tracy","doi":"10.1109/IVELEC.2008.4556413","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556413","url":null,"abstract":"New micro-machining technologies are being evaluated for applicability to millimeter-wave RF devices. Sample RF circuits have been fabricated on diamond, sapphire, and SiO2-coated silicon wafers; wire patterns (1 mum thick) have been optically patterned in aluminum and molybdenum. Dispersion for such a circuit is examined as as well as electron/RF interaction. Unlike traditional means of fabricating vacuum RF devices, micro-machining technologies are expected to scale quite well beyond many of the currently used methods. As well, ribbon beam formation and technologies are evolving and will be perfectly suited to interaction with a flat, micro-machined RF structure. This paper is presented in two parts, design analysis and device fabrication. Details of the design analysis and numerical methods applied to this problem and corresponding results will be presented. This is followed by details of the micro-machining techniques, processes used, and fabrication results.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130175847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Helix equivalent parameters in the anisotropically conducting cylinders 各向异性导电圆柱体的螺旋等效参数
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556451
Y. Pchelnikov
{"title":"Helix equivalent parameters in the anisotropically conducting cylinders","authors":"Y. Pchelnikov","doi":"10.1109/IVELEC.2008.4556451","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556451","url":null,"abstract":"Equivalent parameters of the helical SWS in the anisotropically conducting cylinders and their dependence on the operational frequency had been considered in this paper. The possibility of the independent control of the interaction impedance and dispersion characteristic is the main issue of the provided analysis. Solutions of the wave equations in the anisotropically conducting sheet approximation had been used for obtaining expressions for the equivalent parameters.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130181019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Study of after cavity interaction in a high efficiency 1.5 MW, 110 GHz gyrotron 高效1.5 MW, 110 GHz回旋管腔后相互作用研究
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556418
Y. Hidaka, E. Choi, M. Shapiro, J. Sirigiri, R. Temkin
{"title":"Study of after cavity interaction in a high efficiency 1.5 MW, 110 GHz gyrotron","authors":"Y. Hidaka, E. Choi, M. Shapiro, J. Sirigiri, R. Temkin","doi":"10.1109/IVELEC.2008.4556418","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556418","url":null,"abstract":"This paper investigates an experimental study on a high-efficiency, 1.5-MW, 110-GHz gyrotron with a single-stage depressed collector. The experimental results along with the MAGY simulations strongly demonstrate the importance of minimizing the after cavity interaction (ACI) effects in the design of a higher-efficiency, MW-class, high-frequency gyrotron with a depressed collector.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127851309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
A compact, high power, sub-millimeter-wave Extended Interaction Klystron 一个紧凑，高功率，亚毫米波扩展相互作用速调管
2008 IEEE International Vacuum Electronics Conference Pub Date : 2008-04-22 DOI: 10.1109/IVELEC.2008.4556351
M. Hyttinen, A. Roitman, P. Horoyski, R. Dobbs, E. Sokol, D. Berry, B. Steer
{"title":"A compact, high power, sub-millimeter-wave Extended Interaction Klystron","authors":"M. Hyttinen, A. Roitman, P. Horoyski, R. Dobbs, E. Sokol, D. Berry, B. Steer","doi":"10.1109/IVELEC.2008.4556351","DOIUrl":"https://doi.org/10.1109/IVELEC.2008.4556351","url":null,"abstract":"This presentation describes the performance of a recently developed 218 GHz extended interaction klystron (EIK) amplifier producing 7W CW and weighing less than 4.3 kg.","PeriodicalId":113971,"journal":{"name":"2008 IEEE International Vacuum Electronics Conference","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117217276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
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