Pushing the KIT 2 MW Coaxial-Cavity Short-Pulse Gyrotron Towards a DEMO Relevant Design

Pushing the KIT 2 MW Coaxial-Cavity Short-Pulse Gyrotron Towards a DEMO Relevant Design

Author: Ruess, Sebastian

Publisher: KIT Scientific Publishing

Published: 2021-01-22

Total Pages: 190

ISBN-13: 3731510243

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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


A First 2 MW-Class (136)/170/204 GHz Multi-Frequency Gyrotron Pre-Prototype for DEMO: Design, Construction and Key Components Verification

A First 2 MW-Class (136)/170/204 GHz Multi-Frequency Gyrotron Pre-Prototype for DEMO: Design, Construction and Key Components Verification

Author: Ruess, Tobias

Publisher: KIT Scientific Publishing

Published: 2023-10-26

Total Pages: 258

ISBN-13: 3731513099

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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.


Energy-efficient, scalable and modular industrial microwave applicator for high temperature alkaline hydrolysis of PET

Energy-efficient, scalable and modular industrial microwave applicator for high temperature alkaline hydrolysis of PET

Author: Ramopoulos, Vasileios

Publisher: KIT Scientific Publishing

Published: 2023-01-27

Total Pages: 162

ISBN-13: 3731510995

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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.


New Type of sub-THz Oscillator and Amplifier Systems Based on Helical-Type Gyro-TWTs

New Type of sub-THz Oscillator and Amplifier Systems Based on Helical-Type Gyro-TWTs

Author: Marek, Alexander

Publisher: KIT Scientific Publishing

Published: 2023-01-26

Total Pages: 322

ISBN-13: 3731512505

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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.


Book Synopsis New Type of sub-THz Oscillator and Amplifier Systems Based on Helical-Type Gyro-TWTs by : Marek, Alexander

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.


Systematic Study of Key Components for a Coaxial-Cavity Gyrotron for DEMO

Systematic Study of Key Components for a Coaxial-Cavity Gyrotron for DEMO

Author: Franck, Joachim

Publisher: KIT Scientific Publishing

Published: 2017-05-11

Total Pages: 274

ISBN-13: 3731506521

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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.


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: 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.


Annual Report 2015 / Institute for Pulsed Power and Microwave Technology = Jahresbericht 2015 / Institut fuer Hochleistungsimpuls- und Mikrowellentechnik. (KIT Scientific Reports ; 7722)

Annual Report 2015 / Institute for Pulsed Power and Microwave Technology = Jahresbericht 2015 / Institut fuer Hochleistungsimpuls- und Mikrowellentechnik. (KIT Scientific Reports ; 7722)

Author: Jelonnek, John

Publisher: KIT Scientific Publishing

Published: 2017-01-24

Total Pages: 122

ISBN-13:

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Book Synopsis Annual Report 2015 / Institute for Pulsed Power and Microwave Technology = Jahresbericht 2015 / Institut fuer Hochleistungsimpuls- und Mikrowellentechnik. (KIT Scientific Reports ; 7722) by : Jelonnek, John

Download or read book Annual Report 2015 / Institute for Pulsed Power and Microwave Technology = Jahresbericht 2015 / Institut fuer Hochleistungsimpuls- und Mikrowellentechnik. (KIT Scientific Reports ; 7722) written by Jelonnek, John and published by KIT Scientific Publishing. This book was released on 2017-01-24 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:


Nuclear Fusion Programme: Annual Report of the Association Karlsruhe Institute of Technology/EURATOM ; January 2013 - December 2013

Nuclear Fusion Programme: Annual Report of the Association Karlsruhe Institute of Technology/EURATOM ; January 2013 - December 2013

Author: Pleli, Ingrid

Publisher: KIT Scientific Publishing

Published: 2015-03-18

Total Pages: 606

ISBN-13:

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Book Synopsis Nuclear Fusion Programme: Annual Report of the Association Karlsruhe Institute of Technology/EURATOM ; January 2013 - December 2013 by : Pleli, Ingrid

Download or read book Nuclear Fusion Programme: Annual Report of the Association Karlsruhe Institute of Technology/EURATOM ; January 2013 - December 2013 written by Pleli, Ingrid and published by KIT Scientific Publishing. This book was released on 2015-03-18 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:


Magnetic Fusion Technology

Magnetic Fusion Technology

Author: Thomas J. Dolan

Publisher: Springer Science & Business Media

Published: 2014-02-10

Total Pages: 816

ISBN-13: 1447155564

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Magnetic Fusion Technology describes the technologies that are required for successful development of nuclear fusion power plants using strong magnetic fields. These technologies include: • magnet systems, • plasma heating systems, • control systems, • energy conversion systems, • advanced materials development, • vacuum systems, • cryogenic systems, • plasma diagnostics, • safety systems, and • power plant design studies. Magnetic Fusion Technology will be useful to students and to specialists working in energy research.


Book Synopsis Magnetic Fusion Technology by : Thomas J. Dolan

Download or read book Magnetic Fusion Technology written by Thomas J. Dolan and published by Springer Science & Business Media. This book was released on 2014-02-10 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Fusion Technology describes the technologies that are required for successful development of nuclear fusion power plants using strong magnetic fields. These technologies include: • magnet systems, • plasma heating systems, • control systems, • energy conversion systems, • advanced materials development, • vacuum systems, • cryogenic systems, • plasma diagnostics, • safety systems, and • power plant design studies. Magnetic Fusion Technology will be useful to students and to specialists working in energy research.


Introduction to Terahertz Electronics

Introduction to Terahertz Electronics

Author: Jae-Sung Rieh

Publisher: Springer Nature

Published: 2020-10-01

Total Pages: 363

ISBN-13: 3030518426

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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.


Book Synopsis Introduction to Terahertz Electronics by : Jae-Sung Rieh

Download or read book Introduction to Terahertz Electronics written by Jae-Sung Rieh and published by Springer Nature. This book was released on 2020-10-01 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.


Bringing Fusion to the U.S. Grid

Bringing Fusion to the U.S. Grid

Author: National Academies of Sciences Engineering and Medicine

Publisher:

Published: 2021-11-17

Total Pages:

ISBN-13: 9780309685382

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Fusion energy offers the prospect of addressing the nation's energy needs and contributing to the transition to a low-carbon emission electrical generation infrastructure. Technology and research results from U.S. investments in the major fusion burning plasma experiment known as ITER, coupled with a strong foundation of research funded by the Department of Energy (DOE), position the United States to begin planning for its first fusion pilot plant. Strong interest from the private sector is an additional motivating factor, as the process of decarbonizing and modernizing the nation's electric infrastructure accelerates and companies seek to lead the way. At the request of DOE, Bringing Fusion to the U.S. Grid builds upon the work of the 2019 report Final Report of the Committee on a Strategic Plan for U.S. Burning Plasma Research to identify the key goals and innovations - independent of confinement concept - that are needed to support the development of a U.S. fusion pilot plant that can serve as a model for producing electricity at the lowest possible capital cost.


Book Synopsis Bringing Fusion to the U.S. Grid by : National Academies of Sciences Engineering and Medicine

Download or read book Bringing Fusion to the U.S. Grid written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2021-11-17 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusion energy offers the prospect of addressing the nation's energy needs and contributing to the transition to a low-carbon emission electrical generation infrastructure. Technology and research results from U.S. investments in the major fusion burning plasma experiment known as ITER, coupled with a strong foundation of research funded by the Department of Energy (DOE), position the United States to begin planning for its first fusion pilot plant. Strong interest from the private sector is an additional motivating factor, as the process of decarbonizing and modernizing the nation's electric infrastructure accelerates and companies seek to lead the way. At the request of DOE, Bringing Fusion to the U.S. Grid builds upon the work of the 2019 report Final Report of the Committee on a Strategic Plan for U.S. Burning Plasma Research to identify the key goals and innovations - independent of confinement concept - that are needed to support the development of a U.S. fusion pilot plant that can serve as a model for producing electricity at the lowest possible capital cost.