Design Studies Towards A 4 Mw 170 Ghz Coaxial Cavity Gyrotron
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Design Studies Towards A 4 Mw 170 Ghz Coaxial Cavity Gyrotron
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Author : Matthias Hermann Beringer
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-08-20
Design Studies Towards A 4 Mw 170 Ghz Coaxial Cavity Gyrotron written by Matthias Hermann Beringer and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-20 with Science categories.
In this work the feasibility of a 4 MW 170 GHz coaxial-cavity gyrotron for continuous wave operation is demonstrated. For the first time complete physical designs of the major gyrotron components are elaborated. In a first step, one possible new operating mode is determined, followed by the development of detailed physical designs of the major gyrotron components: Diode and triode type electron gun, coaxial cavity, two-beam quasi-optical output coupler and depressed collector.
Cultural Policy In Ibero America
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Author : Arturo Rodríguez Morató
language : en
Publisher: Routledge
Release Date : 2020-05-21
Cultural Policy In Ibero America written by Arturo Rodríguez Morató and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-21 with Political Science categories.
This book provides a broad overview of the development of Ibero-American cultural policy in an important and innovative way. This volume brings together specialists in the field, from different nations and disciplines, and provides the keys to understanding the different trajectories and experiences of some significant countries in the area on both sides of the Atlantic; the recent developments in this domain such as urban cultural regeneration policies and cultural development policies; and the dynamics of policy transfers such as cultural diplomacy. The book also contrasts the applicability and the explanatory power of the idea of the family of nations for the analysis of cultural policy with models inspired by the welfare regimes. This book allows international researchers an overarching view of the peculiarities and the latest achievements in the field of Ibero-American cultural policy. This book was originally published as a special issue of the International Journal of Cultural Policy.
Systematic Study Of Key Components For A Coaxial Cavity Gyrotron For Demo
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Author : Franck, Joachim
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-05-11
Systematic Study Of Key Components For A Coaxial Cavity Gyrotron For Demo written by Franck, Joachim and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-05-11 with Technology (General) categories.
The physical design of cavity and magnetron injection gun (MIG) for a realistic, DEMO-compatible, coaxial-cavity 238 GHz 2 MW CW fusion gyrotron is developed in this work, having auxiliary frequencies at 170 GHz and 204 GHz. Novel systematic approaches towards multi-frequency mode selection, magnet requirements, and MIG design are presented. Mode deterioration and voltage depression variation due to insert misalignment versus cavity wall and/or versus electron beam are studied.
Pushing The Kit 2 Mw Coaxial Cavity Short Pulse Gyrotron Towards A Demo Relevant Design
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Author : Ruess, Sebastian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-01-22
Pushing The Kit 2 Mw Coaxial Cavity Short Pulse Gyrotron Towards A Demo Relevant Design written by Ruess, Sebastian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-22 with Technology & Engineering categories.
Magnetic fusion is one approach to generate thermonuclear fusion power in an environmental friendly way. The Electron Cyclotron Resonance Heating is considered as the major concept for startup, heating and control of the fusion plasma. Megawatt-class gyrotrons generate the required microwave power. This work focuses on advanced key components and technologies for a DEMO relevant 2 MW gyrotron. One major focus is on the development of advanced Magnetron Injection Guns. Another focus is on the red
A First 2 Mw Class 136 170 204 Ghz Multi Frequency Gyrotron Pre Prototype For Demo Design Construction And Key Components Verification
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Author : Ruess, Tobias
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-10-26
A First 2 Mw Class 136 170 204 Ghz Multi Frequency Gyrotron Pre Prototype For Demo Design Construction And Key Components Verification written by Ruess, Tobias and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-26 with categories.
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.
Feasibility And Operational Limits For A 236 Ghz Hollow Cavity Gyrotron For Demo
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Author : Kalaria, Parth Chandulal
language : en
Publisher: KIT Scientific Publishing
Release Date : 2017-11-08
Feasibility And Operational Limits For A 236 Ghz Hollow Cavity Gyrotron For Demo written by Kalaria, Parth Chandulal and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-08 with Technology (General) categories.
The DEMOnstration fusion power plant (DEMO) will be the first fusion reactor, which is intended to generate net electrical power. For successful operation of DEMO, high-power gyrotrons with operating frequencies up to 240 GHz are required for plasma heating and stabilization. In this work, a systematic feasibility study and tolerance analysis are performed for the conventional-type hollow-cavity DEMO gyrotrons. The various approaches are also suggested to identify its operational limits.
Conceptual Studies Of Multistage Depressed Collectors For Gyrotrons
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Author : Wu, Chuanren
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-09-09
Conceptual Studies Of Multistage Depressed Collectors For Gyrotrons written by Wu, Chuanren and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-09 with Technology & Engineering categories.
Design And Experimental Investigation Of A Second Harmonic 20 Kw Class 28 Ghz Gyrotron For Evaluation Of New Emitter Technologies
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Author : Malygin, Anton
language : en
Publisher: KIT Scientific Publishing
Release Date : 2016-12-16
Design And Experimental Investigation Of A Second Harmonic 20 Kw Class 28 Ghz Gyrotron For Evaluation Of New Emitter Technologies written by Malygin, Anton and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-16 with Technology (General) categories.
Gyrotrons are high-power mm-wave tubes. Here, the design, construction and experimental investigation of a 20 kW, 28 GHz gyrotron (2nd harmonic) are reported. This tube was designed to evaluate new emitters for future highly efficient and reliable fusion gyrotrons and for material processing applications. Following experimental results have been achieved in CW operation: 22.5 kW output power at 23.4 kV electron beam voltage and 2.23 A beam current with the world record efficiency of 43 %.
Automated Mode Recovery And Electronic Stability Control For Wendelstein 7 X Gyrotrons
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Author : Wilde, Fabian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-08-07
Automated Mode Recovery And Electronic Stability Control For Wendelstein 7 X Gyrotrons written by Wilde, Fabian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-08-07 with categories.
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.
Investigations Of After Cavity Interaction In Gyrotrons Including The Effect Of Non Uniform Magnetic Field
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Author : Roy Choudhury, Amitavo
language : en
Publisher: KIT Scientific Publishing
Release Date : 2014-02-05
Investigations Of After Cavity Interaction In Gyrotrons Including The Effect Of Non Uniform Magnetic Field written by Roy Choudhury, Amitavo and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-05 with Technology & Engineering categories.
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.