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Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)最新文献

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Features of quasi-gasdynamic plasma confinement in ECR ion source with powerful microwave pumping 强微波抽运ECR离子源准气动力等离子体约束特性
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787985
S. Golubev, S. Razin, V. E. Semenov, A. N. Smirnov, A. Vodopyanov, V. Zorin
{"title":"Features of quasi-gasdynamic plasma confinement in ECR ion source with powerful microwave pumping","authors":"S. Golubev, S. Razin, V. E. Semenov, A. N. Smirnov, A. Vodopyanov, V. Zorin","doi":"10.1109/UHF.1999.787985","DOIUrl":"https://doi.org/10.1109/UHF.1999.787985","url":null,"abstract":"Powerful ECR heating of a mirror-trapped plasma leads to formation of an anisotropic electron velocity distribution function (EDF): the average energy of the transverse, with respect to the magnetic field, electron motion is much greater than the energy of longitudinal motion. Theoretical studies of a mirror magnetic confinement of a multicomponent plasma with anisotropic EDF in a simple mirror trap reveals an essential augmentation in multicharged ion confinement time due to the EDF anisotropy. Consequently, the EDF anisotropy improves the ion charge state distribution (CSD). In this paper we discuss results of experimental investigation of an ECR discharge sustained by powerful pulse microwave radiation of a gyrotron in a mirror magnetic trap. In particular, data on plasma X-ray emission spectrum and on ion CSD are presented. Formation of the ion CSD has been explored both experimentally and numerically.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125358181","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
Beam-plasma amplifier on basis of coaxial transmission line 基于同轴传输线的波束等离子体放大器
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787956
E. A. Kornilov, P. Markov, G. Sotnikov
{"title":"Beam-plasma amplifier on basis of coaxial transmission line","authors":"E. A. Kornilov, P. Markov, G. Sotnikov","doi":"10.1109/UHF.1999.787956","DOIUrl":"https://doi.org/10.1109/UHF.1999.787956","url":null,"abstract":"The excitation of UHF-oscillations by an electron beam in a disk loaded coaxial transmission line with combs on the inner and external conductors are theoretically investigated. The structure passage channel, where an annular electron beam propagates, is fully filled by plasma. The eigen waves of the plasma filled coaxial transmission line and their dependencies versus plasma density are investigated. It is shown that the plasma has resulted in essentially an enhancement of gain and at the same time widens the excited oscillation spectrum.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122463549","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
Vircator with delay feedback and beam modulation 具有延迟反馈和波束调制的Vircator
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787907
V. Anfinogentov, A. Hramov
{"title":"Vircator with delay feedback and beam modulation","authors":"V. Anfinogentov, A. Hramov","doi":"10.1109/UHF.1999.787907","DOIUrl":"https://doi.org/10.1109/UHF.1999.787907","url":null,"abstract":"In the present paper modification of vircator with preliminary beam modulation and additional delay feedback loop is studied by numerical simulation. It is shown that variance of delay time in the feedback leads to change of phase of modulation signal, what allows to drive the generation characteristics.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131985013","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
Plasma diagnostics in open resonator 开腔等离子体诊断
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787977
D. Afonin
{"title":"Plasma diagnostics in open resonator","authors":"D. Afonin","doi":"10.1109/UHF.1999.787977","DOIUrl":"https://doi.org/10.1109/UHF.1999.787977","url":null,"abstract":"The methods and the results of weakly absorbing plasma investigation with the help of the two-mirror open resonator in the millimeter range are presented. The frequency of electron collisions with different particles and the electronic density of plasma in the flame of gas burners were measured. The accuracy of measurements and the scope for method used were determined.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132044696","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
Simulating of magnetic fields in electron devices by integrated method 电子器件磁场的集成模拟
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787941
V. Tregubov
{"title":"Simulating of magnetic fields in electron devices by integrated method","authors":"V. Tregubov","doi":"10.1109/UHF.1999.787941","DOIUrl":"https://doi.org/10.1109/UHF.1999.787941","url":null,"abstract":"In the report the algorithms of two-dimensional and three-dimensional magnetic systems' simulating for electrovacuum microwave devices are considered, that are used in a program complex TAU. TAU uses an integrated method for calculate two-dimensional electrical fields in metal electrodes' system, two-dimensional magnetic fields in system of ferromagnetics, solenoids and constant magnets and also two-dimensional thermal fields in collector. Three-dimensional trajectories of the charged particles are calculated in electrical and magnetic fields determined by two-dimensional tables or analytical expressions.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133217115","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 ring resonator use the the power packed klystrons for the accelerators of the industrial and therapeutic purposes 环形谐振器使用功率填充速调管作为工业和治疗用途的加速器
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787872
I.A. Freidovich, M.Yu. Vovobyev
{"title":"The ring resonator use the the power packed klystrons for the accelerators of the industrial and therapeutic purposes","authors":"I.A. Freidovich, M.Yu. Vovobyev","doi":"10.1109/UHF.1999.787872","DOIUrl":"https://doi.org/10.1109/UHF.1999.787872","url":null,"abstract":"Beginning with 1986 year the SR&PC \"Toriy\" produces the multi-beam klystrons (MBK) of packed design that are intended to use in the electron accelerator apparatus (EA) of the industrial and medical purposes. The distinctive features of these MBK are the low voltage and reverse focusing system with packed permanent magnets. The enumerated distinctive features predetermine the necessity to use a big number of the electron beams (40) and make impossible to employ the traditional toroidal resonators because of the substantial radial irregularity over the interaction gap field. So, the ring resonators (RR), which are the coiling wave-guide of the H- or II-like cross-section, are employed in the klystrons.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"350 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122761324","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
Numerical simulation of the dynamic processes in the gyrotron adiabatic trap 回旋管绝热阱动态过程的数值模拟
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787895
P. Krivosheev, V. Lygin, V. Manuilov
{"title":"Numerical simulation of the dynamic processes in the gyrotron adiabatic trap","authors":"P. Krivosheev, V. Lygin, V. Manuilov","doi":"10.1109/UHF.1999.787895","DOIUrl":"https://doi.org/10.1109/UHF.1999.787895","url":null,"abstract":"The output parameters of CW and quasi-CW gyrotrons are to a considerable extent defined by the quality of helical electron beams (HEBs) produced by magnetron-injection guns (MIGs). The characteristic feature of MIGs is the trapped magnetic field distribution and therefore some of electrons with greatest oscillatory velocities are reflected from the magnetic mirror and then are locked into the adiabatic trap between the cathode and cavity. According to the recent experimental data trapped electrons render the essential influence upon beam parameters that in particular causes the necessity to reduce the share of the oscillatory energy t/sub /spl perp// in the beam for conservation of its stability. Decreasing of t/sub /spl perp// leads to reducing the output gyrotrons efficiency. These facts denote necessity further perfection of the theoretical model of HEB first of all by taking into account the electrons reflected from the magnetic mirror. In this paper the results of numerical simulation of relaxation processes in MIGs working in subcritical regime and forming regularly intersecting, boundary and quasilaminar beams are presented.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115784036","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
Observation of self-modulation regimes of generation in the powerful BWO 强BWO产生自调制机制的观察
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787912
N. Ginzburg, E. I. Ilyakov, I. Kulagin, Y. Novozhilova, A. Sergeev, N. I. Zaitsev
{"title":"Observation of self-modulation regimes of generation in the powerful BWO","authors":"N. Ginzburg, E. I. Ilyakov, I. Kulagin, Y. Novozhilova, A. Sergeev, N. I. Zaitsev","doi":"10.1109/UHF.1999.787912","DOIUrl":"https://doi.org/10.1109/UHF.1999.787912","url":null,"abstract":"Self-modulating regimes of generation in powerful X-band BWOs was studied experimentally. Periodic sine-shaped modulation of the output signal was observed, which became more complicated as the beam current grew, acquired the character of a series of peaks, and then lost its periodicity.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114747284","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
An instrumental error reduction technique for electron energy analysis in O-type high-power microwave devices o型大功率微波器件电子能量分析的仪器误差减小技术
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787926
A. Arkhipov, N.V. Dvoretskaja
{"title":"An instrumental error reduction technique for electron energy analysis in O-type high-power microwave devices","authors":"A. Arkhipov, N.V. Dvoretskaja","doi":"10.1109/UHF.1999.787926","DOIUrl":"https://doi.org/10.1109/UHF.1999.787926","url":null,"abstract":"In this paper we propose an algorithm of energy spectra reconstruction from experimental retarding curves, that is only slightly more complicated than simple digital differentiation but provides the possibility to correct the spectra and so reduce instrumental errors introduced by the analyzer under the specific conditions of the experiment. The proposed method is essentially a digital realization of an integral deconvolution operation.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"168 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120942245","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
Analysis of coaxial mounting and probe structures 同轴安装和探头结构分析
Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356) Pub Date : 1999-05-24 DOI: 10.1109/UHF.1999.787966
M. Davidovich
{"title":"Analysis of coaxial mounting and probe structures","authors":"M. Davidovich","doi":"10.1109/UHF.1999.787966","DOIUrl":"https://doi.org/10.1109/UHF.1999.787966","url":null,"abstract":"An efficient full-wave spectral domain analysis based on the integral equation method is developed for coaxial mounting and probe structure of a general form. Using this method, the algorithm for the complex input gap impedance of such structures has been derived and the calculated data are presented. The method may be useful for designing active and passive devices and probes mounted in a coaxial line.","PeriodicalId":348319,"journal":{"name":"Proceedings International University Conference 'Electronics and Radiophysics of Ultra-High Frequencies' (Cat. No.99EX356)","volume":"292 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115991111","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
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