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4th IEEE International Conference on Vacuum Electronics, 2003最新文献

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LATTE/MUSE numerical suite: an open source teaching and research code for traveling wave tube amplifiers LATTE/MUSE数值套件:用于行波管放大器的开源教学和研究代码
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286003
J. Wohlbier, M. Converse, J. Plouint, A. Rawal, Aarti Singh, J. Booske
{"title":"LATTE/MUSE numerical suite: an open source teaching and research code for traveling wave tube amplifiers","authors":"J. Wohlbier, M. Converse, J. Plouint, A. Rawal, Aarti Singh, J. Booske","doi":"10.1109/IVEC.2003.1286003","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286003","url":null,"abstract":"The LATTE/MUSE code is capable of steady-state, multifrequency, 1-D simulations of arbitary TWT amplifier geometries, including velocity tapers and circuit serves, with a substantial amount of parameter and input scanning functionality.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133750316","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
The highly efficient multistage plasma (HEMP) thruster, a new electric propulsion concept derived from tube technology 高效多级等离子体(HEMP)推力器是一种新的电力推进概念，源于管式技术
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1285973
G. Kornfeld, N. Koch, G. Coustou
{"title":"The highly efficient multistage plasma (HEMP) thruster, a new electric propulsion concept derived from tube technology","authors":"G. Kornfeld, N. Koch, G. Coustou","doi":"10.1109/IVEC.2003.1285973","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1285973","url":null,"abstract":"In this paper, a new Thales Electron Devices GmbH (TEDG) patented thruster concept is presented, which was successfully investigated. The results showed, that the concept advances the electric propulsion (EP) capabilities by relying on plasma confinement with the means of PPM structures used in TWTs to focus electron beams through delay lines and multistage depressed collectors (MDC). The performance improvements obtained recently are summarised. The total efficiency shown is the product of electrical and the ionisation efficiency. The ionisation efficiency approaches values close to 1 for higher Xe flows. For DM6 MS1 version, this is the case at Xe flows above 10 sccm, resulting at 14 sccm in a total efficiency of about 50%.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116032607","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: 17
Study of window for S-band linear accelerator s波段直线加速器的窗口研究
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286053
T. Tiwari, C.S. Nainwad, A. B. Shah
{"title":"Study of window for S-band linear accelerator","authors":"T. Tiwari, C.S. Nainwad, A. B. Shah","doi":"10.1109/IVEC.2003.1286053","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286053","url":null,"abstract":"This paper deals with design and development of R F Window for S-band linear accelerator at spot frequency 2.998 GHz that is capable of handling peak and average powers of 6 MW and 6 kW, respectively. The HFSS software is used for computation of diameter and thickness of ceramic, length of cylinder and other required parameters. The theoretical values of VSWR, insertion loss, and return loss of the window are compared with the corresponding experimental values. Further the effect of variation of thickness and dielectric constant of ceramic is also studied and it is found that VSWR and return loss are affected.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114719987","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
Development of 3-D electron beam models for transverse-wave devices 横波器件三维电子束模型的建立
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286390
V. Savvin, S. Bugaev, G. Kazarjan, A. Peklevskiy
{"title":"Development of 3-D electron beam models for transverse-wave devices","authors":"V. Savvin, S. Bugaev, G. Kazarjan, A. Peklevskiy","doi":"10.1109/IVEC.2003.1286390","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286390","url":null,"abstract":"New 3D electron beam with CWC (Cyclotron Wave Converter) model that contains large number of charged spherical particles which are characterized by proper values of coordinates, momentum and time of injection into concerned region. Each particle interacts with external electric and magnetic fields and internal space charge field of beam formed by encirclement of particles in concerned beam region. Multiple iteration process is used to achieve necessary precision of computation of beam motion. The developed codes with helical and 3D beam models are applied to simulation and design of powerful microwave devices with high efficiency level, the devices like cyclotron wave converters, synchronous wave TWT, gyrocons and magnicons.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115069144","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
Simulation and modeling of a 34 GHz cusp gun driven peniotron 34 GHz尖枪驱动的脉冲电子管仿真与建模
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286154
L.J. Dressman, D. Mcdermott, N. Luhmann, D. Gallagher, T. Spencer
{"title":"Simulation and modeling of a 34 GHz cusp gun driven peniotron","authors":"L.J. Dressman, D. Mcdermott, N. Luhmann, D. Gallagher, T. Spencer","doi":"10.1109/IVEC.2003.1286154","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286154","url":null,"abstract":"A comprehensive review of the simulation and modeling work done to insure optimal realization of the design, including recent progress on the magnetic field design using the subsequent effect on beam quality were presented in this paper. However, the beam quality was critically dependent on the magnetic field in gun region, which has been the most difficult aspect of the design.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134009853","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
Research and development of millimeter-wave TWTs 毫米波行波管的研究与开发
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286078
H. Mingguang, Wu Changjin, Wu Xiangpin, Cai Shao-lun, Wu Gan, Jia Huiwen
{"title":"Research and development of millimeter-wave TWTs","authors":"H. Mingguang, Wu Changjin, Wu Xiangpin, Cai Shao-lun, Wu Gan, Jia Huiwen","doi":"10.1109/IVEC.2003.1286078","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286078","url":null,"abstract":"This paper briefly relates the research and development states of millimeter-wave TWTs at millimeter wave vacuum devices lab, Beijing Vacuum Electronics Research Institute (BVERI).","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"216 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134031971","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
Microfabrication of vacuum compatible millimeter wave sources 真空兼容毫米波源的微加工
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286391
L. Sadwick, R. J. Hwu, G. Scheitrum
{"title":"Microfabrication of vacuum compatible millimeter wave sources","authors":"L. Sadwick, R. J. Hwu, G. Scheitrum","doi":"10.1109/IVEC.2003.1286391","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286391","url":null,"abstract":"InnoSys is developing a fabrication techniques for manufacturing of millimeter wave vacuum electron devices from semiconductor manufacturing and micromachining. SU-8 RF circuits and PPM magnetic circuits are fabricated by LIGA methods. The circuit fabrication starts with a flat substrate and adds and removes material defined by lithographic masks. Fabricated circuits are integral parts of the vacuum envelope in millimeter wave devices.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132860299","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
Measurement of wall voltage in reset discharge of plasma display panel 等离子显示面板复位放电时壁电压的测量
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286136
K.D. Park, Y. Jeung, C. G. Ryu, J.H. Choi, S.B. Kim, P. Oh, S. Jeon, E. Choi
{"title":"Measurement of wall voltage in reset discharge of plasma display panel","authors":"K.D. Park, Y. Jeung, C. G. Ryu, J.H. Choi, S.B. Kim, P. Oh, S. Jeon, E. Choi","doi":"10.1109/IVEC.2003.1286136","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286136","url":null,"abstract":"Summary form only given: In AC plasma display, it is very important to quantify the wall voltage induced by the wall charge accumulated on the dielectric surface. If we know the quantities of the wall voltage in each period of every sequence; reset period, address period and sustain period, then it helps us to design the optimal driving waveform for high efficiency plasma display. The purpose of this study is to experimentally investigate the exact wall voltage profiles at each period of every sequence and then provide the basic data to driving sequence designer. We develop a new method to measure the wall voltage with VDS (versatile driving simulator) system. The wall voltage has been experimentally measured at the reset period by this new method. The reset period in driving sequence of plasma display plays an important role in improvement of the display quality. All unit cells in panel is initialized and is settled to have same amount of wall charge in reset period of driving sequence, and stable initialization of wall charge state for all cells can improve the accuracy of writing discharge in address period. It is very important to know the wall voltage quantity and wall charge state for design of the optimal reset driving waveform, which enables perfect initialization.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116759135","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 analysis of absolute instability in gyrotron traveling wave amplifiers 回旋管行波放大器绝对不稳定性的非线性分析
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286272
Y. Yeh, Y. Lo, C. Su, Ting-shu Wu
{"title":"Nonlinear analysis of absolute instability in gyrotron traveling wave amplifiers","authors":"Y. Yeh, Y. Lo, C. Su, Ting-shu Wu","doi":"10.1109/IVEC.2003.1286272","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286272","url":null,"abstract":"This study analysis the absolute instability by using a nonlinear self-consistent simulation code. The code is based on the technique of steady-state particle tracing in a weakly nonuniform interaction structure and appropriated for output power of amplifier, start-oscillation currents of gyro-BWO and reflective oscillation. If the unstable band extends to the forward and backward wave regions, there will provide an internal feedback to result in the absolute instability.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121984429","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
Experimental results of a four-cavity 17 GHz gyroklystron 四腔17ghz回旋速调管的实验结果
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286374
W. Lawson, S. Gouveia, B. Hogan, V. Granatstein
{"title":"Experimental results of a four-cavity 17 GHz gyroklystron","authors":"W. Lawson, S. Gouveia, B. Hogan, V. Granatstein","doi":"10.1109/IVEC.2003.1286374","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286374","url":null,"abstract":"In this paper, we present the experimental cold-test results of the new input cavity and the hot tests of this new 4 cavity, frequency-doubling coaxial gyroklystron. The input cavity was redesigned to have a lower quality factor and located the lossy absorbers inside the cavity structure, rather than in the adjacent drift tube sections. The average radius of the cavity was increased to make that cavity less susceptible to spurious oscillations. The designed 4 cavity frequency doubling system have a high large signal gain above 50 dB.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122279548","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: 16
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