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Sociologie d'un grand équipement scientifique

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ISBN: 9782847883572 9782847886351 Year: Language: French
Publisher: ENS Éditions
Added to DOAB on : 2017-07-04 11:38:32
License: OpenEdition licence for Books

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L'ESRF est le premier synchrotron de troisième génération construit dans le monde, quelques années avant ses homologues américain et japonais. Il offre à ce titre une occasion d'examiner la façon dont est créé un équipement scientifique novateur et les partenariats et coopérations que cela implique. Tel est l'objectif de cet ouvrage qui repose sur trois enquêtes conduites en 1992, 1996 et 2005 et embrasse ainsi aussi bien la phase de construction que celle de l'exploitation. Par son caractère...

Diagnostics of Short Electron Bunches with THz Detectors in Particle Accelerators

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ISBN: 9783731508892 Year: Pages: XIII, 226 p. DOI: 10.5445/KSP/1000090017 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:02
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Several novel diagnostic systems based on the detection of coherent THz radiation are presented. The investigation of the photon beam properties allow for bunch-by-bunch and turn-by-turn diagnostics of the emitting electron bunches in the accelerator. It is used for time-resolved studies of the micro-bunching instability. Accompanying simulations with Inovesa show a good agreement with the measurement which enhances the knowledge of the physics behind the micro-bunching instability.

Ultra-fast YBa2Cu3O7-x direct detectors for the THz frequency range

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Book Series: Karlsruher Schriftenreihe zur Supraleitung / Hrsg. Prof. Dr.-Ing. M. Noe, Prof. Dr. rer. nat. M. Siegel ISSN: 18691765 ISBN: 9783731500704 Year: Volume: 9 Pages: XI, 165 p. DOI: 10.5445/KSP/1000035826 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:59
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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.

Influence of cellulose ethers on the kinetics of early Portland cement hydration

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Book Series: Karlsruher mineralogische und geochemische Hefte ISSN: 16182677 ISBN: 9783866440777 Year: Volume: 32 Pages: III, 110 p. DOI: 10.5445/KSP/1000005907 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Astronomy (General)
Added to DOAB on : 2019-07-30 20:02:00
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The phase-specific influence of cellulose ether (CEs) on Portland cement hydration was investigated in-situ, using synchrotron X-ray diffractometry. CE-caused retardation can be traced to the polymers adsorption behaviour. The adsorption decreases in following order: silicates and their hydrates (high), sulfates (low), ettringite (zero). The retarding effect is strong on silicates, moderate on sulfates and unspecific on alluminates.

Metals Challenged by Neutron and Synchrotron Radiation

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ISBN: 9783038426790 9783038426806 Year: Pages: 288 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Mining and Metallurgy
Added to DOAB on : 2018-02-08 13:10:36
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Neutron and Synchrotron radiation methods have matured to become powerful techniques for the study of a vast range of materials, including metals. The characterization methods comprise the categories of diffraction, spectroscopy and imaging, which themselves can alter greatly in detail, to include hundreds of variants, problems and sample environments. In a similar way, their applications to metals and hard condensed matter materials cover disciplines spanning engineering, physics, chemistry, materials science and their derivatives such as geology, energy storage, etc. … The present book, “Metals Challenged by Neutron and Synchrotron Radiation” is a first compilation in Metals of 20 original and review works on research utilizing or designing those state-of-the-art techniques at modern facilities. The Editorial reviews the context of and identifies thematic links between these papers, grouping them into five interwoven themes, namely Sintering Techniques and Microstructure Evolution, Titanium Aluminides and Titanium Alloys Under Extreme Conditions, Metallic Glass and Disordered Crystals, In Situ and Time-Resolved Response to Mechanical Load and Shock, and Thin Films and Layers. This book represents a good cross-section of the status quo of neutron and synchrotron radiation with respect to questions in the metallurgical field, which by far is not exhaustive. Nor are the methods and other materials, which motivated me to the creation of a new sister-journal, entitled Quantum Beam Science. With this, I would like to thank all authors, reviewers and contributors behind the scene for the creation of this work, presenting to you a piece of interesting reading and reference literature.

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