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Theory And Modeling Of High Power Gyrotrons
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Book Synopsis Theory and Modeling of High-Power Gyrotrons by :
Download or read book Theory and Modeling of High-Power Gyrotrons written by and published by . This book was released on 2016 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarized results of the work performed at the Institute for Research in Electronics and Applied Physics of the University of Maryland (College Park, MD) in the framework of the DOE Grant "Theory and Modeling of High-Power Gyrotrons". The report covers the work performed in 2011-2014. The research work was performed in three directions: - possibilities of stable gyrotron operation in very high-order modes offering the output power exceeding 1 MW level in long-pulse/continuous-wave regimes, - effect of small imperfections in gyrotron fabrication and alignment on the gyrotron efficiency and operation, - some issues in physics of beam-wave interaction in gyrotrons.
Author :Machavaram V. Kartikeyan Publisher :Springer Science & Business Media ISBN 13 :3662076373 Total Pages :234 pages Book Rating :4.6/5 (62 download)
Book Synopsis Gyrotrons by : Machavaram V. Kartikeyan
Download or read book Gyrotrons written by Machavaram V. Kartikeyan and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing on the author's wide experience, this book gives a comprehensive review of the state of the art in gyrotron technology, covering the theory, design and applications. The book includes an extensive references list which provides an excellent guide to the related literature.
Book Synopsis Analytical and Numerical Modeling of Gyrotrons by : D. Dialetis
Download or read book Analytical and Numerical Modeling of Gyrotrons written by D. Dialetis and published by . This book was released on 1984 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report on work performed during the period 21 May 1980 through 20 July 1984. It describes the research activities of SAI personnel in support of the experimental and theoretical gyrotron development program at the Naval Research Laboratory. SAI conducted theoretical work consisting of analytical and numerical modeling of high power gyrotron radiation devices. The research effort has been focused on: Wideband amplifier design and theory; Megawatt oscillator design and theory; Quasi-optical resonator theory; and RF heating and current drive in a plasma.
Book Synopsis Introduction to the Physics of Gyrotrons by : Gregory S. Nusinovich
Download or read book Introduction to the Physics of Gyrotrons written by Gregory S. Nusinovich and published by JHU Press. This book was released on 2020-03-03 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: As unique sources of coherent high-power, microwave, and millimeter-wave radiation, gyrotrons are an essential part of the hunt for controlled fusion. Presently, gyrotrons are actively used for electron cyclotron resonance plasma heating and current drive in various controlled fusion reactors. These sources have been under development in many countries for more than forty years. In spite of their widespread use, however, there is as yet no single book to introduce non-specialists to this vital field. Now Gregory S. Nusinovich, an early pioneer of the gyrotron and widely regarded today as the world's leading authority on the subject, explains the fundamental physical principles upon which gyrotrons and related devices operate. Nusinovich first sets forth some "rules of thumb" that allow readers to understand gyrotron operation in simple terms. He then explores the fundamentals of the general theory of gyrotrons and offers an overview of the various types of gyro-devices, including gyromonotrons, gyroklystrons, gyro-traveling-wave tubes, and gyrotwystrons. He explains not only the theory, linear and nonlinear, but also the practical challenges that users of such devices face. This book will be of interest to undergraduate and graduate students as well as to those who develop gyrotrons or who use them in various applications. It should also appeal to plasma physicists interested in charged-particle dynamics, as well as to applied physicists needing to know more about micro- and millimeter-wave technologies.
Book Synopsis Time-dependent spectrum analysis of high power gyrotrons by : Schlaich, Andreas
Download or read book Time-dependent spectrum analysis of high power gyrotrons written by Schlaich, Andreas and published by KIT Scientific Publishing. This book was released on 2015-08-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, a novel measurement system for the analysis of the gyrotron RF output spectrum was developed. It enables unprecedented time dependent measurements within a large bandwidth, dynamic range and unambiguous RF indication in the entire D-Band (110-170 GHz). Special attention was given to the investigation of parasitic RF oscillations, and the analysis of the interplay of thermal cavity expansion and ionization-based space charge neutralization at the start of long RF pulses.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non-uniform Magnetic Field by : Roy Choudhury, Amitavo
Download or read book Investigations of After Cavity Interaction in Gyrotrons Including the Effect of Non-uniform Magnetic Field written by Roy Choudhury, Amitavo and published by KIT Scientific Publishing. This book was released on 2014-02-05 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic after-cavity interaction (ACI) in megawatt-class gyrotrons is investigated that could lead to lower output mode purity and increased level of internal stray radiation. The self-consistent KIT-IHM multi-mode-code SELFT has been modified to extend the simulation domain into the radius up-taper section of the gyrotron cavity where the probability of ACI exists. Studies on four different gyrotron configurations confirm that undesired interactions in the up-taper region can result in additional parasitic oscillations with relative power in the 1%-range.
Book Synopsis Electron Gun for Gyrotrons by : Udaybir Singh
Download or read book Electron Gun for Gyrotrons written by Udaybir Singh and published by Springer Nature. This book was released on 2022-08-22 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights the emission, transmission, and launching of an electron beam. It presents an overview and recent advances in order to enhance knowledge in the field of gyrotron in general and electron gun in particular. The book is presented in seven chapters starting with the introduction and ending with future possible directions in the field of electron beams and gyrotrons.
Book Synopsis Influence of Emitter Surface Roughness and Emission Inhomogeneity on Efficiency and Stability of High Power Fusion Gyrotrons by : Zhang, Jianghua
Download or read book Influence of Emitter Surface Roughness and Emission Inhomogeneity on Efficiency and Stability of High Power Fusion Gyrotrons written by Zhang, Jianghua and published by KIT Scientific Publishing. This book was released on 2016-11-30 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing demand for powerful, reliable, and efficient gyrotron oscillators for Electron Cyclotron Resonance Heating (ECRH) in fusion plasma experiments requires a close look at the various factors in gyrotrons that determine gyrotron performance. In this frame, the influence of emitter surface roughness, emission inhomogeneity, and secondary electron generation on gyrotron operation is presented, with focus on Low Frequency Oscillations (LFOs) and Electron Beam Halo (EBH) generation.
Book Synopsis State-of-the-Art of High-Power Gyro-Devices. Update of Experimental Results 2021. (KIT Scientific Reports ; 7761) by : Thumm, Manfred
Download or read book State-of-the-Art of High-Power Gyro-Devices. Update of Experimental Results 2021. (KIT Scientific Reports ; 7761) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2021-10-28 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an update of the experimental achievements published in the review “State- of-the-Art of High-Power Gyro-Devices and Free Electron Masers”, Journal of Infrared, Millime-ter, and Terahertz Waves, 41, No. 1, pp 1-140 (2020) related to the development of gyro-devices (Tables 2-34). Emphasis is on high-power gyrotron oscillators for long-pulse or continuous wave (CW) operation and pulsed gyrotrons for any applications.
Book Synopsis Multi-frequency Beam-shaping Mirror System Design for High-power Gyrotrons by : Shaolin Liao
Download or read book Multi-frequency Beam-shaping Mirror System Design for High-power Gyrotrons written by Shaolin Liao and published by . This book was released on 2008 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Time-Dependent Multimode Simulation of Gyrotron Oscillators by :
Download or read book Time-Dependent Multimode Simulation of Gyrotron Oscillators written by and published by . This book was released on 1990 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: High power gyrotrons, including both CW and high peak power configurations, are increasingly designed to operate in high mode density regimes. It has been observed that operation is often single-moded even for cavities with dense mode spectra, but the mode density does affect the gyrotron efficiency and the available operating modes. Multimode effects have been studied extensively for the quasi-optical gyrotron but there has been less progress on fully nonlinear formulations for conventional waveguide cavity gyrotrons which involve different transverse modes with irregularly spaced frequencies and unequal coupling impedances. A time-dependent, nonlinear, multimode theory of gyrotrons has been recently developed along with a computer code to carry out the numerical calculations. The code has been used to simulate the operation of a CW-relevant 140 GHz gyrotron experiment carried out at MIT and the 750 kV, 35 GHz intense-beam gyrotron experiment at NRL. The MIT gyrotron involves competition between two transverse modes: the TE03 and TE23 modes. The NRL gyrotron involves competition between TEm2 modes and is an example of a three-mode interaction.
Book Synopsis Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers by : Chao-Hai Du
Download or read book Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers written by Chao-Hai Du and published by Springer. This book was released on 2014-05-29 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: A gyrotron traveling-wave amplifier (gyro-TWT) with the high-power and broad-band capabilities is considered as a turn-on key for next generation high-resolution radar. The book presents the most advanced theory, methods and physics in a gyro-TWT. The most challenging problem of instability competition has been for the first time addressed in a focused and systematic way and reported via concise states and vivid pictures. The book is likely to meet the interest of researchers and engineers in radar and microwave technology, who would like to study the gyro-TWTs and to promote its application in millimeter-wave radars. Chao-Hai Du and Pu-Kun Liu are both professors at Peking University.
Book Synopsis State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2015 (KIT Scientific Reports ; 7717) by : Thumm, Manfred
Download or read book State-of-the-Art of High Power Gyro-Devices and Free Electron Masers. Update 2015 (KIT Scientific Reports ; 7717) written by Thumm, Manfred and published by KIT Scientific Publishing. This book was released on 2016-08-29 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to the Physics of Gyrotrons by : G. S. Nusinovich
Download or read book Introduction to the Physics of Gyrotrons written by G. S. Nusinovich and published by . This book was released on with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soviet Development of Gyrotrons by : Simon Kassel
Download or read book Soviet Development of Gyrotrons written by Simon Kassel and published by . This book was released on 1986 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report surveys the development of high-power cyclotron resonance masers (CRM) and gyrotrons in the Soviet Union, based on Soviet open-source literature. It deals with the nature and history of relativistic CRM devices; provides a sequence of the most important issues of gyrotron research and development as perceived by Soviet authors; and discusses individual Soviet research groups, the basic organizational units responsible for the CRM and gyrotron research and development. The study suggests, among other things, that high-power relativistic microwave electronics is one of the most successful areas of Soviet R&D. It has maintained a consistent record of significant achievements; it has managed to overcome the systemic weakness of the Soviet R&D system in being able to translate effectively the results of advanced research into production of practical equipment; and it has become the fastest growing area of application of pulsed power technology, which itself has been for many years the subject of priority development in the Soviet Union.
