Feasibility And Operational Limits For A 236 Ghz Hollow Cavity Gyrotron For Demo
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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.
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.
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
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.
Multphysics Modelling Towards The Stabilization Of Pan Fibers With Microwaves Based On Experimental Data
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Author : Hofele, Julia
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-07-10
Multphysics Modelling Towards The Stabilization Of Pan Fibers With Microwaves Based On Experimental Data written by Hofele, Julia 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 2024-07-10 with categories.
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.
Energy Efficient Scalable And Modular Industrial Microwave Applicator For High Temperature Alkaline Hydrolysis Of Pet
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Author : Ramopoulos, Vasileios
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-01-27
Energy Efficient Scalable And Modular Industrial Microwave Applicator For High Temperature Alkaline Hydrolysis Of Pet written by Ramopoulos, Vasileios 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 2023-01-27 with Technology & Engineering categories.
Microwave-assisted alkaline hydrolysis of PET can be 20 times faster and at lower temperatures. This work presents a novel industrial microwave applicator at 2.45 GHz with homogeneous distribution to support this reaction, which allows an efficient and continuous operation. In addition, an innovative dielectric and calorimetric measurements setup is presented. Furthermore, the modelling of the reaction kinetics based on the measured dielectric parameters is presented.
New Type Of Sub Thz Oscillator And Amplifier Systems Based On Helical Type Gyro Twts
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Author : Marek, Alexander
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-01-26
New Type Of Sub Thz Oscillator And Amplifier Systems Based On Helical Type Gyro Twts written by Marek, Alexander 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 2023-01-26 with Technology & Engineering categories.
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.
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.
A High Voltage Pulsed Power Modulator For Fast Rising Arbitrary Waveforms
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Author : Hochberg, Martin
language : en
Publisher: KIT Scientific Publishing
Release Date : 2020-02-19
A High Voltage Pulsed Power Modulator For Fast Rising Arbitrary Waveforms written by Hochberg, Martin 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 2020-02-19 with Technology & Engineering categories.
Annual Report 2016 Institute For Pulsed Power And Microwave Technology Institut Fuer Hochleistungsimpuls Und Mikrowellentechnik Kit Scientific Reports 7745
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Author : Jelonnek, John
language : de
Publisher: KIT Scientific Publishing
Release Date : 2018-03-14
Annual Report 2016 Institute For Pulsed Power And Microwave Technology Institut Fuer Hochleistungsimpuls Und Mikrowellentechnik Kit Scientific Reports 7745 written by Jelonnek, John 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 2018-03-14 with categories.