Download or read book Design Studies Towards a 4 MW 170 GHz Coaxial cavity Gyrotron written by Matthias Hermann Beringer and published by KIT Scientific Publishing. This book was released on 2014-08-20 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Cultural Policy in Ibero America written by Arturo Rodríguez Morató and published by Routledge. This book was released on 2020-05-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

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:

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

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.

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:

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:

Download or read book 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 published by KIT Scientific Publishing. This book was released on 2016-12-16 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

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 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Diffraction and Scattering in Launchers of Quasi Optical Mode Converters for Gyrotrons written by Jens Hanspeter Flamm and published by KIT Scientific Publishing. This book was released on 2014-06-17 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work different methods for the calculation of diffraction and scattering in launchers of quasi-optical mode converters for gyrotrons are compared, ranked and extended. The extension gives the opportunity to take a tapered average radius of the waveguide antenna into account. The comparison and the extension of the fast field calculation methods for component synthesis opens the possibility to reduce diffraction and stray radiation of reliable and powerful millimeter wave sources.

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:

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.

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:

Download or read book New Type of sub THz Oscillator and Amplifier Systems Based on Helical Type Gyro TWTs written by Marek, Alexander and published by KIT Scientific Publishing. This book was released on 2023-01-26 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Adaptive and Intelligent Temperature Control of Microwave Heating Systems with Multiple Sources written by Sun, Yiming and published by KIT Scientific Publishing. This book was released on 2016-04-28 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: