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Optimization Of Hot Electron Bolometers For Thz Radiation
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Book Synopsis Optimization of Hot-Electron Bolometers for THz Radiation by : Axel Stockhausen
Download or read book Optimization of Hot-Electron Bolometers for THz Radiation written by Axel Stockhausen and published by KIT Scientific Publishing. This book was released on 2014-07-20 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hot-electron bolometers are fast and low noise radiation detectors which can be used for many different applications. The aim of this work was to optimize the fabrication process of hot-electron bolometers and gain a deeper understanding of the underlying processes. To achieve this, the fabrication of the superconducting thin films was optimized and the superconducting properties of the films were analyzed. Detectors fabricated using the results showed a record value for the noise temperature.
Download or read book Retail Marketing written by Frank Quix and published by Routledge. This book was released on 2019-11-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today's turbulent business environment, maintaining and optimizing retail strategies are of crucial importance. Retail Marketing is a complete guide to how retailing works in the non-food sector. Focusing on operational applications of retailing, this textbook puts students on the inside track to success in the fast-moving retail industry. This new edition offers an integrated approah to internet and cross-channel retailing and adds new material on lost sales and market research in addition to coverig new research. Retail Marketing is a comprehensive textbook for students in this area and provides the perfect overview for anyone interested in this vital industry.
Book Synopsis Ultra-fast YBa2Cu3O7-x Direct Detectors for the THz Frequency Range by : Petra Thoma
Download or read book Ultra-fast YBa2Cu3O7-x Direct Detectors for the THz Frequency Range written by Petra Thoma and published by KIT Scientific Publishing. This book was released on 2014-07-28 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the analysis and optimization of the picosecond pulsed terahertz radiation generated by electron storage rings or other pulsed sources, ultra-fast detectors are required which are able to resolve picosecond dynamic processes directly in the time domain. In this book, a new direct terahertz detector technology based on the high-temperature superconductor YBa2Cu3O7-x has been developed which opens new routes in the analysis of picosecond time-domain processes with a wide dynamic range.
Book Synopsis Optimisation of hysteretic losses in high-temperature superconducting wires by : Krueger, Philipp
Download or read book Optimisation of hysteretic losses in high-temperature superconducting wires written by Krueger, Philipp and published by KIT Scientific Publishing. This book was released on 2014-05-15 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hysteretic loss optimisations through numerical simulation and subsequent experimental confirmation in transport current and background field measurements: ferromagnetic shielding and topological geometry optimisation is used to reduce energy dissipation in HTS coated conductor geometries. Single tapes and coil geometries are investigated. A 3D model capable of taking into account contact resistances is also presented for the Twisted Stacked Tape Conductor cable.
Book Synopsis Superconducting integrated THz receiver by : Merker, Michael
Download or read book Superconducting integrated THz receiver written by Merker, Michael and published by KIT Scientific Publishing. This book was released on 2019-12-17 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Real-time imaging systems for superconducting nanowire single-photon detector arrays by : Hofherr, Matthias
Download or read book Real-time imaging systems for superconducting nanowire single-photon detector arrays written by Hofherr, Matthias and published by KIT Scientific Publishing. This book was released on 2014-09-26 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconducting nanowire singe-photon detectors (SNSPD) are promising detectors in the field of applications, where single-photon resolution is required like in quantum optics, spectroscopy or astronomy. These cryogenic detectors gain from a broad spectrum in the optical and infrared range and deliver low dark count rates and low jitter times. This thesis improves the understanding of the detection mechanism of SNSPDs and intodruces new and promising multi-pixel readout concepts.
Book Synopsis Electrical-field sensitive YBa₂Cu₃O₇₋ₓ detectors for real-time monitoring of picosecond THz pulses by : Raasch, Juliane
Download or read book Electrical-field sensitive YBa₂Cu₃O₇₋ₓ detectors for real-time monitoring of picosecond THz pulses written by Raasch, Juliane and published by KIT Scientific Publishing. This book was released on 2019-04-23 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work investigates the capability of the high-temperature superconductor YBCO to sense the evolution of the electrical field of THz pulses. A deposition process for ten unit-cell thin films and a sub-μm patterning process were developed to enable high sensitivities. The detector response to THz exctiations and its electrical-field sensitivity were studied. This unique characteristic allows for the investigation of instabilities of the THz radiation emitted from synchrotron storage rings.
Book Synopsis Fluorescent thermal imaging method for investigating transient effects in high-temperature superconductor tapes and coils by : Gyuráki, Roland
Download or read book Fluorescent thermal imaging method for investigating transient effects in high-temperature superconductor tapes and coils written by Gyuráki, Roland and published by KIT Scientific Publishing. This book was released on 2022-02-24 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents the development and application of high-speed fluorescent thermal imaging for quench analysis in high-temperature superconductors (HTS). Using a fluorescent coating, with a temperature-dependent light emission, temperature changes can be calculated over 2D surfaces. The technique uncovered peculiar transient effects in novel HTS tape architectures and also helped to verify and better understand hot spot development in both insulated and non-insulated, HTS–wound pancake coils.
Book Synopsis Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications by : Buchholz, Alexander
Download or read book Prospective Life Cycle Assessment of High-Temperature Superconductors for Future Grid Applications written by Buchholz, Alexander and published by KIT Scientific Publishing. This book was released on 2022-07-27 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-temperature superconductors have distinct advantages compared to conventional conductors. Below their critical temperature, superconductors have immeasurably low ohmic losses. To maintain the superconducting state, superconductors require constant cooling. This study aims at identifying the environmental impacts of the application of superconductors in future grid technologies such as superconducting power cables.
Book Synopsis AC Losses in High-Temperature Superconductor Tapes and Cables for Power Applications by : Godfrin, Aurélien
Download or read book AC Losses in High-Temperature Superconductor Tapes and Cables for Power Applications written by Godfrin, Aurélien and published by KIT Scientific Publishing. This book was released on 2022-05-10 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work focuses on two topics. The first is the investigation of producing filaments on copper-stabilized coated conductors, with striations made after or before electroplating the tape. The second topic is the applicability of the striations for reducing the AC losses of cables, in particular the CORC® and RACC cables, which are made with high-temperature superconductor (HTS) striated tapes.
Book Synopsis Development of high-temperature superconductor cables for high direct current applications by : Preuß, Alan
Download or read book Development of high-temperature superconductor cables for high direct current applications written by Preuß, Alan and published by KIT Scientific Publishing. This book was released on 2021-01-14 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: A design process for HTS DC cables was developed for high current applications. Based on the design process, a 35 kA HTS DC cable demonstrator was developed. The superconducting elements of the demonstrator were manufactured and tested individually at 77 K. Afterwards, the demonstrator cable was assembled and tested at 77 K. The assembled demonstrator successfully reached 35 kA at 77 K and self field conditions.
Book Synopsis Research and Technology Development on Superconducting Current Limiting Transformers by : Hellmann, Sebastian
Download or read book Research and Technology Development on Superconducting Current Limiting Transformers written by Hellmann, Sebastian and published by KIT Scientific Publishing. This book was released on 2020-01-10 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs) by : Charaev, Ilya
Download or read book Improving the Spectral Bandwidth of Superconducting Nanowire Single-Photon Detectors (SNSPDs) written by Charaev, Ilya and published by KIT Scientific Publishing. This book was released on 2018-07-31 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a comprehensive investigation of the influence of geometry-dependent factors on performance metrics of superconducting single-photon detectors. With fundamental knowledge, main investigations are focused to extend the spectral bandwidth and to enhance the detection efficiency, especially in infrared range. The developed technology of single-spiral detectors and unconventional electron-beam lithography allows to improve the performance of superconducting detectors.
Book Synopsis Characterisation of REBCO Roebel cables by : Otten, Simon J.
Download or read book Characterisation of REBCO Roebel cables written by Otten, Simon J. and published by KIT Scientific Publishing. This book was released on 2019-05-13 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work concerns the characterization of high-temperature superconducting REBCO Roebel cables for use in accelerator magnets. The effects of bending, torsion and compressive stress on the cable are investigated. The second part concerns the effect of inter-strand resistance on the cable properties. A two-parameter model is proposed to describe inter-strand connections and predict the effect on AC loss and stability. Additionally, the AC loss and stability are experimentally investigated.
Book Synopsis Evaluation of the Use of Superconducting 380 kV Cable by : Kottonau, Dustin
Download or read book Evaluation of the Use of Superconducting 380 kV Cable written by Kottonau, Dustin and published by KIT Scientific Publishing. This book was released on 2020-11-03 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diese Studie führt eine Auslegung von supraleitenden Kabeln für die Anwendung im 380-kV-Drehstromnetz durch und erläutert allgemeine Aspekte des Einsatzes solcher Kabel im Höchstspannungsnetz. Dabei vergleicht sie die Supraleitungstechnologie unter vielen verschiedenen Kriterien mit anderen Leitungstechnologien. - This study describes the design of superconducting cables for use in the 380 kV three-phase network and explains general aspects of the use of such cables in the extra-high voltage grid. It compares the superconducting technology with other line technologies under many different criteria.
Book Synopsis Superconducting Nanowire Single-Photon Detectors for Quantum Photonic Integrated Circuits on GaAs by : Schmidt, Wolfgang-Gustav Ekkehart
Download or read book Superconducting Nanowire Single-Photon Detectors for Quantum Photonic Integrated Circuits on GaAs written by Schmidt, Wolfgang-Gustav Ekkehart and published by KIT Scientific Publishing. This book was released on 2020-07-09 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of a superconducting DC wind generator by : Liu, Yingzhen
Download or read book Design of a superconducting DC wind generator written by Liu, Yingzhen and published by KIT Scientific Publishing. This book was released on 2020-11-18 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The trend towards larger power ratings of wind turbines asks for innovations in power generation, which requires lower weight and cost, smaller size, higher efficiency and reliability. Due to high current-carrying capability and no DC losses of superconductors, a superconducting wind generator can have a superior power to weight/volume ratio with high efficiency. The work in the book mainly focuses on the feasibility study and design of a superconducting DC wind generator.
