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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 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 Temperature- and Time-Dependent Dielectric Measurements and Modelling on Curing of Polymer Composites by : Prastiyanto, Dhidik
Download or read book Temperature- and Time-Dependent Dielectric Measurements and Modelling on Curing of Polymer Composites written by Prastiyanto, Dhidik and published by KIT Scientific Publishing. This book was released on 2016-03-15 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Systematic Study of Key Components for a Coaxial-Cavity Gyrotron for DEMO by : Franck, Joachim
Download or read book Systematic Study of Key Components for a Coaxial-Cavity Gyrotron for DEMO written by Franck, Joachim and published by KIT Scientific Publishing. This book was released on 2017-05-11 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A high-voltage pulsed power modulator for fast-rising arbitrary waveforms by : Hochberg, Martin
Download or read book A high-voltage pulsed power modulator for fast-rising arbitrary waveforms written by Hochberg, Martin and published by KIT Scientific Publishing. This book was released on 2020-02-19 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis A First 2 MW-Class (136)/170/204 GHz Multi-Frequency Gyrotron Pre-Prototype for DEMO: Design, Construction and Key Components Verification by : Ruess, Tobias
Download or read book 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 published by KIT Scientific Publishing. This book was released on 2023-10-26 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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.
Book Synopsis Energy-efficient, scalable and modular industrial microwave applicator for high temperature alkaline hydrolysis of PET by : Ramopoulos, Vasileios
Download or read book Energy-efficient, scalable and modular industrial microwave applicator for high temperature alkaline hydrolysis of PET written by Ramopoulos, Vasileios and published by KIT Scientific Publishing. This book was released on 2023-01-27 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Feasibility and Operational Limits for a 236 GHz Hollow-Cavity Gyrotron for DEMO by : Kalaria, Parth Chandulal
Download or read book Feasibility and Operational Limits for a 236 GHz Hollow-Cavity Gyrotron for DEMO written by Kalaria, Parth Chandulal and published by KIT Scientific Publishing. This book was released on 2017-11-08 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conceptual Studies of Multistage Depressed Collectors for Gyrotrons by : Wu, Chuanren
Download or read book Conceptual Studies of Multistage Depressed Collectors for Gyrotrons written by Wu, Chuanren and published by KIT Scientific Publishing. This book was released on 2019-09-09 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Book Synopsis Pushing the KIT 2 MW Coaxial-Cavity Short-Pulse Gyrotron Towards a DEMO Relevant Design by : Ruess, Sebastian
Download or read book Pushing the KIT 2 MW Coaxial-Cavity Short-Pulse Gyrotron Towards a DEMO Relevant Design written by Ruess, Sebastian and published by KIT Scientific Publishing. This book was released on 2021-01-22 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
