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Author : Merker, Michael
Publisher : KIT Scientific Publishing
Page : 230 pages
File Size : 44,6 Mb
Release : 2019-12-17
Category : Technology & Engineering
ISBN : 9783731509707
Author : Schmidt, Wolfgang-Gustav Ekkehart
Publisher : KIT Scientific Publishing
Page : 240 pages
File Size : 47,5 Mb
Release : 2020-07-09
Category : Science
ISBN : 9783731509806
Author : Carlo Corsi,Fedir Sizov
Publisher : Springer
Page : 317 pages
File Size : 49,9 Mb
Release : 2014-05-06
Category : Science
ISBN : 9789401788281
These proceedings comprise invited papers from highly experienced researchers in THz technology and security applications. THz detection of explosives represents one of the most appealing technologies to have recently emerged in dealing with terrorist attacks encountered by civil security and military forces throughout the world. Discussed are the most advanced technologies and developments, the various points of operational strength and weaknesses as well as are suggestions and predictions the best technological solutions to overcome current operational limits. The current status of various levels of cooling in THz detectors, sources and associated electronics are also addressed. The goal was to provide a clear view on the current technologies available and the required advances needed in order to achieve more efficient systems. This goal was outlined in part by establishing the baseline of current uncertainty estimations in physics-based modelling and the identification of key areas which require additional research and development.
Author : Kottonau, Dustin,Shabagin, Eugen,De Sousa, Wescley,Geisbüsch, Jörn,Noe, Mathias,Staggo, Hanno,Fechner, Simon,Woiton, Hannes,Küsters, Thomas
Publisher : KIT Scientific Publishing
Page : 138 pages
File Size : 42,6 Mb
Release : 2020-11-03
Category : Technology & Engineering
ISBN : 9783731510260
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.
Author : Knehr, Emanuel Marius
Publisher : KIT Scientific Publishing
Page : 200 pages
File Size : 46,8 Mb
Release : 2023-03-02
Category : Technology & Engineering
ISBN : 9783731512561
This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a frequency-multiplexing scheme to operate multiple detectors with a reduced number of lines, and the integration of SNSPDs with free-form polymer structures to achieve efficient optical coupling onto the active area of the detectors.
Author : Preuß, Alan
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 50,5 Mb
Release : 2021-01-14
Category : Technology & Engineering
ISBN : 9783731510413
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.
Author : Buchholz, Alexander
Publisher : KIT Scientific Publishing
Page : 246 pages
File Size : 43,7 Mb
Release : 2022-07-27
Category : Technology & Engineering
ISBN : 9783731511946
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.
Author : Godfrin, Aurélien
Publisher : KIT Scientific Publishing
Page : 146 pages
File Size : 51,7 Mb
Release : 2022-05-10
Category : Technology & Engineering
ISBN : 9783731510963
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.
Author : Gyuráki, Roland
Publisher : KIT Scientific Publishing
Page : 194 pages
File Size : 40,8 Mb
Release : 2022-02-24
Category : Science
ISBN : 9783731510642
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.
Author : I. A. Parinov
Publisher : Springer Science & Business Media
Page : 788 pages
File Size : 43,7 Mb
Release : 2013-01-22
Category : Technology & Engineering
ISBN : 9783642344411
The main features of high-temperature superconductors (HTSC) that define their properties are intrinsic brittleness of oxide cuprates, the layered anisotropic structure and the supershort coherence length. Taking into account these features, this treatise presents research into HTSC microstructure and properties, and also explores the possibilities of optimization of the preparation techniques and superconducting compositions. The "composition-technique-experiment-theory-model," employed here, assumes considerable HTSC defectiveness and structure heterogeneity and helps to draw a comprehensive picture of modern representations of the microstructure, strength and the related structure-sensitive properties of the materials considered. Special attention is devoted to the Bi-Sr-Ca-Cu-O and Y-Ba-Cu-O families, which currently offer the most promising applications. Including a great number of illustrations and references, this monograph addresses students, post-graduate students and specialists, taking part in the development, preparation and research of new materials. The new edition had been updated intensively, especially experimental investigations and modeling conductive and elastic properties of HTC superconductors have been added.
Author : Roger Wördenweber,Victor Moshchalkov,Simon Bending,Francesco Tafuri
Publisher : Walter de Gruyter GmbH & Co KG
Page : 508 pages
File Size : 53,9 Mb
Release : 2017-09-11
Category : Science
ISBN : 9783110456240
By covering theory, design, and fabrication of nanostructured superconducting materials, this monograph is an invaluable resource for research and development. Examples are energy saving solutions, healthcare, and communication technologies. Key ingredients are nanopatterned materials which help to improve the superconducting critical parameters and performance of superconducting devices, and lead to novel functionalities. Contents Tutorial on nanostructured superconductors Imaging vortices in superconductors: from the atomic scale to macroscopic distances Probing vortex dynamics on a single vortex level by scanning ac-susceptibility microscopy STM studies of vortex cores in strongly confined nanoscale superconductors Type-1.5 superconductivity Direct visualization of vortex patterns in superconductors with competing vortex-vortex interactions Vortex dynamics in nanofabricated chemical solution deposition high-temperature superconducting films Artificial pinning sites and their applications Vortices at microwave frequencies Physics and operation of superconducting single-photon devices Josephson and charging effect in mesoscopic superconducting devices NanoSQUIDs: Basics & recent advances Bi2Sr2CaCu2O8 intrinsic Josephson junction stacks as emitters of terahertz radiation| Interference phenomena in superconductor-ferromagnet hybrids Spin-orbit interactions, spin currents, and magnetization dynamics in superconductor/ferromagnet hybrids Superconductor/ferromagnet hybrids
Author : Anatoli Sidorenko
Publisher : Springer Science & Business Media
Page : 340 pages
File Size : 55,9 Mb
Release : 2011-08-18
Category : Science
ISBN : 9783642201585
This book demonstrates how the new phenomena in superconductivity on the nanometer scale (FFLO state, triplet superconductivity, Crossed Andreev Reflection, synchronized generation etc.) serve as the basis for the invention and development of novel nanoelectronic devices and systems. It demonstrates how rather complex ideas and theoretical models, like odd-pairing, non-uniform superconducting state, pi-shift etc., adequately describe the processes in real superconducting nanostructues and novel devices based on them. The book is useful for a broad audience of readers, researchers, engineers, PhD-students, lectures and others who would like to gain knowledge in the frontiers of superconductivity at the nanoscale.
Author : Christopher K. Walker
Publisher : CRC Press
Page : 345 pages
File Size : 50,7 Mb
Release : 2015-10-16
Category : Science
ISBN : 9781466570436
A Powerful Window into Cosmic EvolutionTerahertz (THz) observations of interstellar atoms, molecules, and dust serve as powerful probes of the conditions within the interstellar medium that permeates our galaxy, providing insights into the origins of stars, planets, galaxies, and the Universe. Taking a cross-disciplinary approach to the subject, Te
Author : Frédérique de Fornel,Pierre-Noël Favennec
Publisher : John Wiley & Sons
Page : 238 pages
File Size : 48,9 Mb
Release : 2013-02-04
Category : Science
ISBN : 9781118586341
The scientific and technical basis underpinning modern measurement techniques used for electromagnetic quantities and phenonema is necessarily wide-ranging, as the electromagnetic environment spans all possible frequencies and wavelengths. Measurements must be applicable in fields as varied as nanotechnologies, telecommunications, meteorology, geo-location, radio-astronomy, health, biology, and many others. In order to adequately cover the many different facets of the topic, this book provides examples from the entire range of the electromagnetic spectrum — covering frequencies from several hertz to terahertz, and considering wavelength distances ranging from nanometers to light-years in optics. It then provides coverage of the various measurement techniques using electromagnetic waves for various applications, devoting chapters to each different field of application. This comprehensive book gives detailed information on: the various techniques and methods available to measure the key characteristics of electromagnetic waves, in terms of the local field and phase for a broad field of frequencies; determination of physical quantities such as distance, time, etc., using electromagnetic properties; new approaches to measurements in the field of electromagnetic distribution in complex structures media, such as biological tissues and in the nanosciences.
Author : Edward L. Wolf,Gerald B. Arnold,Michael A. Gurvitch,John F. Zasadzinski
Publisher : CRC Press
Page : 376 pages
File Size : 52,6 Mb
Release : 2017-09-07
Category : Science
ISBN : 9781315340852
This book summarizes the history and present status and applications of Josephson junctions. These devices are leading elements in superconducting electronics and provide state-of-the-art performance in detection of small magnetic fields and currents, in several digital computing methods, and in medical diagnostic devices and now provide voltage standards used worldwide. Astronomical infrared (IR) telescopes, including the South Pole Telescope, use these junctions in combinations called superconducting quantum interference devices (SQUIDs).
