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Des Accelerateurs Laser Plasma Aux Sources De Rayonnement X Femtoseconde
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Book Synopsis Des accélérateurs laser-plasma aux sources de rayonnement X femtoseconde by : Sébastien Corde
Download or read book Des accélérateurs laser-plasma aux sources de rayonnement X femtoseconde written by Sébastien Corde and published by . This book was released on 2012 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lors de l'interaction relativiste entre une impulsion laser brève et intense et un plasma sous-dense, des électrons peuvent être injectés et accélérés jusqu'à plusieurs centaines de MeV dans une structure accélératrice se formant dans le sillage de l'impulsion laser : c'est l'accélérateur laser-plasma. Une des applications majeures de ces accélérateurs réside dans le développement de sources compactes de faisceaux de rayonnement X femtoseconde. Au cours de cette thèse, deux sources de rayonnement X ont été étudiées et développées. Le rayonnement bétatron, intrinsèque à l'accélérateur laser-plasma, provient des oscillations transverses des électrons au cours de leur accélération. Sa caractérisation par comptage de photons a montré que le faisceau X contenait un total de 10^9 photons, avec des énergies pouvant être supérieures à 10 keV. Nous avons également développé une source Compton tout optique produisant des photons de quelques centaines de keV, basée sur la collision entre un faisceau de photons et un faisceau d'électrons. Le potentiel de ces sources de rayonnement a été mis en évidence en réalisant l'imagerie par contraste de phase mono-coup d'un échantillon biologique. Nous avons ensuite montré que l'émission X bétatron est un outil expérimental très puissant pour étudier la physique sous-jacente à l'accélération laser-plasma. On peut tout d'abord réaliser la cartographie de la région d'émission, ce qui donne des informations inédites, permettant par exemple de localiser l'endroit où sont injectés les électrons. Les propriétés angulaires et spectrales du rayonnement X permettent également d'avoir des informations sur la dynamique transverse des électrons au cours de leur accélération
Book Synopsis Accélération électronique par sillage laser et sources de rayonnements associées by : Xavier Davoine
Download or read book Accélération électronique par sillage laser et sources de rayonnements associées written by Xavier Davoine and published by . This book was released on 2009 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'accélération par sillage laser est une technique permettant d'obtenir un accélérateur à électrons très compact en comparaison avec les accélérateurs conventionnels et produisant des faisceaux d'électrons aux propriétés inédites. Elle repose sur l'utilisation d'une impulsion laser ultra intense et de durée ultracourte. En se propageant dans un plasma peu dense, l'impulsion laser crée dans son sillage une onde plasma générant des champs électriques très importants et d'amplitude de plusieurs ordres de grandeur supérieure aux accélérateurs conventionnels. Ces ondes de sillage permettent d'accélérer très fortement des faisceaux d'électrons en quelques millimètres ou centimètres, jusqu'à des énergies de plusieurs dizaines de MeV à quelques GeV. La taille des accélérateurs est donc considérablement réduite. Les faisceaux d'électrons ainsi générés peuvent être notamment utilisés pour créer des rayonnements X et gamma ultra-brefs par diverses méthodes, par exemple en utilisant des cibles de conversion ou des onduleurs. Le travail réalisé dans cette thèse est essentiellement numérique. L'interaction laser-plasma est modélisée à l'aide du code Calder. Les simulations ont permis de mieux comprendre la physique en jeu, notamment dans le cas où les électrons sont injectés dans l'onde de sillage grâce au schéma de collision d'impulsions. Ce schéma permet d'améliorer la qualité des faisceaux produits et d'en contrôler les caractéristiques. Enfin, un code reposant sur une modélisation et des algorithmes différents a été étudié. Ce nouveau code permet de réduire considérablement la durée des simulations.
Book Synopsis Laser-Driven Particle Acceleration Towards Radiobiology and Medicine by : Antonio Giulietti
Download or read book Laser-Driven Particle Acceleration Towards Radiobiology and Medicine written by Antonio Giulietti and published by Springer. This book was released on 2016-05-04 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the new method of laser-driven acceleration for application to radiation biophysics and medicine. It provides multidisciplinary contributions from world leading scientist in order to assess the state of the art of innovative tools for radiation biology research and medical applications of ionizing radiation. The book contains insightful contributions on highly topical aspects of spatio-temporal radiation biophysics, evolving over several orders of magnitude, typically from femtosecond and sub-micrometer scales. Particular attention is devoted to the emerging technology of laser-driven particle accelerators and their application to spatio-temporal radiation biology and medical physics, customization of non-conventional and selective radiotherapy and optimized radioprotection protocols.
Book Synopsis Filamentation laser femtoseconde IR by : Magali Durand
Download or read book Filamentation laser femtoseconde IR written by Magali Durand and published by . This book was released on 2011 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les lasers femtoseconde amplifiés permettent grâce à leur très grande puissance d'étudier de nouveaux phénomènes physiques tels que la filamentation laser, le faisceau laser se propagent alors sur de grandes distances tout en maintenant une intensité crête élevée. Un filament laser résulte d'une compétition dynamique entre l'effet Kerr (qui focalise le faisceau) et la défocalisation due au plasma généré par l'impulsion laser. Dans ce travail de thèse la filamentation d'un faisceau laser femtoseconde IR a été étudiée aussi bien en terme de processus non-linéaire, que du point de vue d'une source de rayonnements secondaires à grande distance. Lors d'une propagation sur très grande distance (kilomètre) la formation de plusieurs filaments est inévitable. L'interaction entre deux filaments a donc été étudiée méthodiquement dans un premier temps, ainsi que l'effet de cette interaction sur les rayonnements secondaires générés par filamentation. Puis la génération de continuum de lumière blanche et d'émission conique par filamentation laser et la possibilité de générer un continuum de lumière blanche à grande distance ont été étudiées. Finalement, une étude en plein air permettant une propagation sur 2 km a été réalisée. Nous avons démontré qu'il était possible d'obtenir de la filamentation jusqu'à une distance de 1 km avec un laser femtoseconde de 200 mJ se propageant horizontalement à l'air libre. Il s'agit, à ce jour, du record mondial en matière de filamentation laser à longue distance
Download or read book Journal de physique written by and published by . This book was released on 2006 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Laser-Plasma Interactions by : Dino A. Jaroszynski
Download or read book Laser-Plasma Interactions written by Dino A. Jaroszynski and published by CRC Press. This book was released on 2009-03-27 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Solid Compendium of Advanced Diagnostic and Simulation ToolsExploring the most exciting and topical areas in this field, Laser-Plasma Interactions focuses on the interaction of intense laser radiation with plasma. After discussing the basic theory of the interaction of intense electromagnetic radiation fields with matter, the book covers three ap
Book Synopsis Particle Physics Reference Library by : Stephen Myers
Download or read book Particle Physics Reference Library written by Stephen Myers and published by Springer Nature. This book was released on 2020-01-01 with total page 867 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third open access volume of the handbook series deals with accelerator physics, design, technology and operations, as well as with beam optics, dynamics and diagnostics. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A,B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access.
Download or read book Technical Digest written by and published by . This book was released on 1998 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electron Radiography by : Arthur I. Berman
Download or read book Electron Radiography written by Arthur I. Berman and published by . This book was released on 1950 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Physics Reference Library by : Christian W. Fabjan
Download or read book Particle Physics Reference Library written by Christian W. Fabjan and published by Springer Nature. This book was released on 2020 with total page 1083 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
Book Synopsis Laser-plasma Acceleration : Proceedings of the International School of Physics "Enrico Fermi", Varenna on Lake Como, Villa Monastero, 20-25 June 2011 by : Fernando Ferroni
Download or read book Laser-plasma Acceleration : Proceedings of the International School of Physics "Enrico Fermi", Varenna on Lake Como, Villa Monastero, 20-25 June 2011 written by Fernando Ferroni and published by IOS Press. This book was released on 2012 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impressive progress has been made in the field of laser-plasma acceleration in the last decade, with outstanding achievements from both experimental and theoretical viewpoints. Closely exploiting the development of ultra-intense, ultrashort pulse lasers, laser-plasma acceleration has developed rapidly, achieving accelerating gradients of the order of tens of GeV/m, and making the prospect of miniature accelerators a more realistic possibility.This book presents the lectures delivered at the Enrico Fermi International School of Physics and summer school: 'Laser-Plasma Acceleration', held in Varenna, Italy, in June 2011.
Book Synopsis Quantum Fields and Processes by : John Gough
Download or read book Quantum Fields and Processes written by John Gough and published by Cambridge University Press. This book was released on 2018-04-12 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wick ordering of creation and annihilation operators is of fundamental importance for computing averages and correlations in quantum field theory and, by extension, in the Hudson–Parthasarathy theory of quantum stochastic processes, quantum mechanics, stochastic processes, and probability. This book develops the unified combinatorial framework behind these examples, starting with the simplest mathematically, and working up to the Fock space setting for quantum fields. Emphasizing ideas from combinatorics such as the role of lattice of partitions for multiple stochastic integrals by Wallstrom–Rota and combinatorial species by Joyal, it presents insights coming from quantum probability. It also introduces a 'field calculus' which acts as a succinct alternative to standard Feynman diagrams and formulates quantum field theory (cumulant moments, Dyson–Schwinger equation, tree expansions, 1-particle irreducibility) in this language. Featuring many worked examples, the book is aimed at mathematical physicists, quantum field theorists, and probabilists, including graduate and advanced undergraduate students.
Book Synopsis The Hydrogen Atom by : S.G. Karshenboim
Download or read book The Hydrogen Atom written by S.G. Karshenboim and published by Springer. This book was released on 2007-12-03 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: For more than a century, studies of atomic hydrogen have been a rich source of scientific discoveries. These began with the Balmer series in 1885 and the early quantum theories of the atom, and later included the development of QED and the first successful gauge field theory. Today, hydrogen and its relatives continue to provide new fundamental information, as witnessed by the contributions to this book. The printed volume contains invited reviews on the spectroscopy of hydrogen, muonium, positronium, few-electron ions and exotic atoms, together with related topics such as frequency metrology and the determination of fundamental constants. The accompanying CD contains, in addition to these reviews, a further 40 contributed papers also presented at the conference "Hydrogen Atom 2" held in summer 2000. Finally, to facilitate a historical comparison, the CD also contains the proceedings of the first "Hydrogen Atom" conference of 1988. The book includes a foreword by Norman F. Ramsey.
Book Synopsis Oxford Dictionary of Chemistry by : John Daintith
Download or read book Oxford Dictionary of Chemistry written by John Daintith and published by . This book was released on 2004 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully revised and updated with over 4,000 entries, this dictionary covers allthe commonly encountered terms in chemistry, including physical chemistry andbiochemistry.
Book Synopsis Applications of Laser-Driven Particle Acceleration by : Paul Bolton
Download or read book Applications of Laser-Driven Particle Acceleration written by Paul Bolton and published by CRC Press. This book was released on 2018-06-04 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book of its kind to highlight the unique capabilities of laser-driven acceleration and its diverse potential, Applications of Laser-Driven Particle Acceleration presents the basic understanding of acceleration concepts and envisioned prospects for selected applications. As the main focus, this new book explores exciting and diverse application possibilities, with emphasis on those uniquely enabled by the laser driver that can also be meaningful and realistic for potential users. It also emphasises distinction, in the accelerator context, between laser-driven accelerated particle sources and the integrated laser-driven particle accelerator system (all-optical and hybrid versions). A key aim of the book is to inform multiple, interdisciplinary research communities of the new possibilities available and to inspire them to engage with laser-driven acceleration, further motivating and advancing this developing field. Material is presented in a thorough yet accessible manner, making it a valuable reference text for general scientific and engineering researchers who are not necessarily subject matter experts. Applications of Laser-Driven Particle Acceleration is edited by Professors Paul R. Bolton, Katia Parodi, and Jörg Schreiber from the Department of Medical Physics at the Ludwig-Maximilians-Universität München in München, Germany. Features: Reviews the current understanding and state-of-the-art capabilities of laser-driven particle acceleration and associated energetic photon and neutron generation Presents the intrinsically unique features of laser-driven acceleration and particle bunch yields Edited by internationally renowned researchers, with chapter contributions from global experts
Book Synopsis Dry Kiln Schedules for Commercial Woods - Temperate and Tropical by : R. Sidney Boone
Download or read book Dry Kiln Schedules for Commercial Woods - Temperate and Tropical written by R. Sidney Boone and published by . This book was released on 1988 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains suggested dry kiln schedules for over 500 commercial woods, both temperate and tropical. The schedules are written out for easy reference and use. The majority of the schedules are from the world literature with emphasis on U.S., Canadian, and British publications. Revised schedules are suggested for western U.S. and Canadian softwoods and U.S. southern pines. Included are conventional and elevated temperatures for U.S. and Canadian species, Latin American woods, Asian and Oceanian woods, African woods, and European woods. Also included are high temperature schedules for U.S. and Canadian species and tables of assembled dry kiln schedules.
Download or read book ZnO Thin Films written by Paolo Mele and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) is an n-type semiconductor with versatile applications such as optical devices in ultraviolet region, piezoelectric transducers, transparent electrode for solar cells and gas sensors. This book "ZnO Thin Films: Properties, Performance and Applications" gives a deep insight in the intriguing science of zinc oxide thin films. It is devoted to cover the most recent advances and reviews the state of the art of ZnO thin films applications involving energy harvesting, microelectronics, magnetic devices, photocatalysis, photovoltaics, optics, thermoelectricity, piezoelectricity, electrochemistry, temperature sensing. It serves as a fundamental information source on the techniques and methodologies involved in zinc oxide thin films growth, characterization, post-deposition plasma treatments and device processing. This book will be invaluable to the experts to consolidate their knowledge and provide insight and inspiration to beginners wishing to learn about zinc oxide thin films.
