New Type Of Sub Thz Oscillator And Amplifier Systems Based On Helical Type Gyro Twts PDF Download
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Author | : Marek, Alexander |
Publisher | : KIT Scientific Publishing |
Total Pages | : 322 |
Release | : 2023-01-26 |
Genre | : Technology & Engineering |
ISBN | : 3731512505 |
Download New Type of sub-THz Oscillator and Amplifier Systems Based on Helical-Type Gyro-TWTs Book in PDF, ePub and Kindle
This work presents the development of a new sub-THz source for the generation of trains of coherent high-power ultra-short pulses at 263 GHz via passive mode-locking of two coupled helical gyro-TWTs. For the first time, it is shown that the operation of such passive mode-locked helical gyro-TWTs in the hard excitation regime is of particular importance to reach the optimal coherency of the generated pulses. This could be of particular interest for some new time-domain DNP-NMR methods.
Author | : Hofele, Julia |
Publisher | : KIT Scientific Publishing |
Total Pages | : 174 |
Release | : 2024-07-10 |
Genre | : |
ISBN | : 3731513501 |
Download MultPhysics Modelling towards the Stabilization of PAN Fibers with Microwaves Based on Experimental Data Book in PDF, ePub and Kindle
High energy demand is one reason for high costs of carbon fibers. One option to decrease them is to use microwave heating instead of conventional heating. In this work, steps towards a microwave assisted process during the stabilization phase are presented. In-situ dielectric measurements are performed and a reaction kinetics model is setup in connection to the dielectric loss. This allows to calculate a stabilization degree and fiber temperatures leading to a basic process understanding.
Author | : Ruess, Tobias |
Publisher | : KIT Scientific Publishing |
Total Pages | : 258 |
Release | : 2023-10-26 |
Genre | : |
ISBN | : 3731513099 |
Download A First 2 MW-Class (136)/170/204 GHz Multi-Frequency Gyrotron Pre-Prototype for DEMO: Design, Construction and Key Components Verification Book in PDF, ePub and Kindle
Ein Gyrotron wird in magnetisch eingeschlossenen Plasmaexperimenten für Heizung, Stromtrieb, Plasmastabilisierung und Plasmadiagnostik verwendet. In dieser Arbeit wird der erste Entwurf und Bau eines Mehrfrequenz-/Mehrzweck Pre-Prototyp Gyrotrons in koaxialer Technologie vorgestellt, das bei (136)/170/204 GHz mit einer Ausgangsleistung von 2 MW arbeitet. Dies ist der erste Schritt zum Betrieb bei Frequenzen bis zu 240 GHz unter Verwendung der Koaxialhohlraum-Gyrotrontechnologie. - A gyrotron is used in magnetically confined plasma experiments for heating, current drive, plasma stabilization and plasma diagnostics. This work presents the first design and construction of a multi-frequency / multi-purpose coaxial-cavity pre-prototype gyrotron operating at (136)/170/204 GHz with an output power of 2 MW. It is the first step towards operating frequencies up to 240 GHz using the coaxial-cavity gyrotron technology.
Author | : Wilde, Fabian |
Publisher | : KIT Scientific Publishing |
Total Pages | : 272 |
Release | : 2024-08-07 |
Genre | : |
ISBN | : 3731511606 |
Download Automated Mode Recovery and Electronic Stability Control for Wendelstein 7-X Gyrotrons Book in PDF, ePub and Kindle
Magnetic confinement fusion relies on plasma heating and plasma control using gyrotron oscillators providing at megawatt power levels. The operational reliability decreases when operating at the performance limits due to increasing parasitic mode activity. This work demonstrates for the first time the automated, fast recovery of nominal gyrotron operation during a pulse by exploiting the hysteretic gyrotron behaviour after a mode switch being in use at the Wendelstein 7-X ECRH facility.
Author | : Chao-Hai Du |
Publisher | : Springer |
Total Pages | : 200 |
Release | : 2014-05-29 |
Genre | : Technology & Engineering |
ISBN | : 3642547281 |
Download Millimeter-Wave Gyrotron Traveling-Wave Tube Amplifiers Book in PDF, ePub and Kindle
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.
Author | : Machavaram V. Kartikeyan |
Publisher | : Springer Science & Business Media |
Total Pages | : 234 |
Release | : 2013-03-14 |
Genre | : Technology & Engineering |
ISBN | : 3662076373 |
Download Gyrotrons Book in PDF, ePub and Kindle
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.
Author | : Jae-Sung Rieh |
Publisher | : Springer Nature |
Total Pages | : 363 |
Release | : 2020-10-01 |
Genre | : Technology & Engineering |
ISBN | : 3030518426 |
Download Introduction to Terahertz Electronics Book in PDF, ePub and Kindle
This book provides a practical guide to terahertz electronics, especially for readers with an electronics background. The author guides readers through the all the key concepts of terahertz electronics, including terahertz sources, detectors, and waveguides, together with reviews on key terahertz applications on spectroscopy, imaging, communication, and radar. This book will serve as a handy reference for graduate students and engineers in the field of terahertz with a viewpoint from electronics. Presents the topic of terahertz from electronics viewpoint; Designed to be particularly helpful for the readers familiar with semiconductor devices and circuits; Enables optics-based terahertz researchers to understand terahertz electronics; Based on the author’s extensive experience from both industry and academia.
Author | : The Nuclear Magnetic Resonance Society of Japan |
Publisher | : Springer |
Total Pages | : 634 |
Release | : 2017-11-23 |
Genre | : Science |
ISBN | : 9811059667 |
Download Experimental Approaches of NMR Spectroscopy Book in PDF, ePub and Kindle
This book describes the advanced developments in methodology and applications of NMR spectroscopy to life science and materials science. Experts who are leaders in the development of new methods and applications of life and material sciences have contributed an exciting range of topics that cover recent advances in structural determination of biological and material molecules, dynamic aspects of biological and material molecules, and development of novel NMR techniques, including resolution and sensitivity enhancement. First, this book particularly emphasizes the experimental details for new researchers to use NMR spectroscopy and pick up the potentials of NMR spectroscopy. Second, the book is designed for those who are involved in either developing the technique or expanding the NMR application fields by applying them to specific samples. Third, the Nuclear Magnetic Resonance Society of Japan has organized this book not only for NMR members of Japan but also for readers worldwide who are interested in using NMR spectroscopy extensively.
Author | : B. N. Basu |
Publisher | : World Scientific |
Total Pages | : 496 |
Release | : 1996 |
Genre | : Technology & Engineering |
ISBN | : 981022320X |
Download Electromagnetic Theory and Applications in Beam-wave Electronics Book in PDF, ePub and Kindle
This book is divided into two parts. The first part deals with basic electromagnetic and the second part with beam-wave electronics related to growing-wave devices including 'slow-wave' travelling-wave tubes and 'fast-wave' gyro-travelling-wave tubes. The first part is a prerequisite for the second part, while the second part covers the applications of the topics discussed in the first part. These two parts put together make the volume a self-contained treatise. In the specific applications considered, time-independent field concepts are exemplified in the problems related to the formation of an electron beam by an electron gun, the confinement of an electron beam by a magnetic focusing structure, etc. Similarly, time-dependent field concepts are exemplified in problems related to propagation through a slow-wave structure and amplification in growing-wave electron beam devices, such as travelling-wave tubes, double-stream amplifiers, beam-plasma amplifiers and gyro-travelling-wave tubes. All throughout the text, stress is given to provide complete analytical deductions with full mathematical details and present the state-of-the-art concepts.
Author | : Richard G. Carter |
Publisher | : Cambridge University Press |
Total Pages | : 843 |
Release | : 2018-04-12 |
Genre | : Technology & Engineering |
ISBN | : 0521198623 |
Download Microwave and RF Vacuum Electronic Power Sources Book in PDF, ePub and Kindle
Get up-to-speed on the theory, principles and design of vacuum electron devices.