Download or read book Development Characterization of Sources for High energy High intensity Coherent Radiation written by Wolfram Helml and published by . This book was released on 2012 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coherent Radiation Sources written by A.W. Saenz and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energetic electromagnetic radiation finds frequent uses in science (e. g. , for expe riments in nuclear and elementary - particle physics), in technology (for materials testing), and in medicine (for medical X-rays). The most common method of genera ting such radiation is via the process of "bremsstrahlung" (a German term coined by A. Sommerfeld, meaning "braking radiation") in which a beam of electrons is direc ted into matter (e. g. , a metal target), losing energy during its collisions with the atoms and releasing this energy in the form of emitted radiation. The character of such radiation may be drastically changed by the use of a tar get with periodic structure (most commonly, a crystal target). The coherent waves emitted from individual crystal atoms interfere with each other, monochromatizing and polarizing the radiation and often increasing its intensity manifold, thereby creating a powerful radiation source of high quality for purposes of scientific and technical applications. This is true both for the well - established "coherent bremsstrahlung" process in which the interfering radiation is emitted while the electrons cross a succession of crystal planes, as well as for the more recently discovered process of "channeling radiation" (generating radiation of even higher intensity, but lower energy) in which the radiation is emitted while the electrons propagate along a crystal plane, or a crystal axis, in an oscillatory fashion.
Download or read book The Theory of Coherent Radiation by Intense Electron Beams written by Vyacheslov A. Buts and published by Springer Science & Business Media. This book was released on 2006-08-26 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spurred by the development of high-current, high-energy relativistic electron beams, this books delves into the foundations of a device- and geometry-independent theoretical treatment of a large collection of interacting and radiating electron bunches. Covers a broad swath of topics, from the radiation emission of a single charged particle to collective behaviour of a high-density electron bunch, to application in modern sytems.
Download or read book Characterization of Condensed Matter written by Yujun Song and published by John Wiley & Sons. This book was released on 2023-08-02 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterization of Condensed Matter A comprehensive and accessible introduction to the characterization of condensed materials The characterization of condensed materials is a crucial aspect of materials science. The science underlying this area of research and analysis is interdisciplinary, combining electromagnetic spectroscopy, surface and interface testing methods, physiochemical analysis methods, and more. All of this must be brought to bear in order to understand the relationship between microstructures and larger-scale properties of condensed matter. Characterization of Condensed Matter: An Introduction to Composition, Microstructure, and Surface Methods introduces the technologies involved in the characterization of condensed matter and their many applications. It incorporates more than a decades’ experience in teaching a successful undergraduate course in the subject and emphasizes accessibility and continuously reinforced learning. The result is a survey which promises to equip students with both underlying theory and real experimental instances of condensed matter characterization. Characterization of Condensed Matter readers will also find: Detailed treatment of techniques including electromagnetic spectroscopy, X-ray diffraction, X-ray absorption, electron microscopy, surface and element analysis, and more Incorporation of concrete experimental examples for each technique Exercises at the end of each chapter to facilitate understanding Characterization of Condensed Matter is a useful reference for undergraduates and early-career graduate students seeking a foundation and reference for these essential techniques.
Download or read book Development Utilization of Bright Tabletop Sources of Coherent Soft X Ray Radiation written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project investigated aspects of the development and utilization of compact XUV sources based on fast capillary discharges and high order harmonic up conversion. These sources are very compact, yet can generate soft x-ray radiation with peak spectral brightness several orders of magnitude larger than a synchrotron beam lines. The work has included the characterization of some of the important parameters that enable the use of these sources in unique applications, such as the degree of spatial coherence and the wavefront characteristics that affect their focusing capabilities. In relation to source development, they have recently completed preliminary work towards exploring the generation of high harmonics in a pre-ionized medium created by a capillary discharge. Since ions are more difficult to ionize than neutral atoms, the use of pre-ionized nonlinear media may lead to the generation of coherent light at> 1 KeV photon energy. Recent application results include the first study of the damage threshold and damage mechanism of XUV mirrors exposed to intense focalized 46.9 nm laser radiation, and the study of the ablation of polymers with soft x-ray laser light.
Download or read book Coherent Radiation Sources written by A.W. Saenz and published by Springer. This book was released on 2014-03-12 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energetic electromagnetic radiation finds frequent uses in science (e. g. , for expe riments in nuclear and elementary - particle physics), in technology (for materials testing), and in medicine (for medical X-rays). The most common method of genera ting such radiation is via the process of "bremsstrahlung" (a German term coined by A. Sommerfeld, meaning "braking radiation") in which a beam of electrons is direc ted into matter (e. g. , a metal target), losing energy during its collisions with the atoms and releasing this energy in the form of emitted radiation. The character of such radiation may be drastically changed by the use of a tar get with periodic structure (most commonly, a crystal target). The coherent waves emitted from individual crystal atoms interfere with each other, monochromatizing and polarizing the radiation and often increasing its intensity manifold, thereby creating a powerful radiation source of high quality for purposes of scientific and technical applications. This is true both for the well - established "coherent bremsstrahlung" process in which the interfering radiation is emitted while the electrons cross a succession of crystal planes, as well as for the more recently discovered process of "channeling radiation" (generating radiation of even higher intensity, but lower energy) in which the radiation is emitted while the electrons propagate along a crystal plane, or a crystal axis, in an oscillatory fashion.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Generation and Application of Ultrashort Coherent Mid Infrared Electromagnetic Radiation written by Scott Wandel and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle accelerators are useful instruments that help address critical issues for the future development of nuclear energy. Current state-of-the-art accelerators based on conventional radio-frequency (rf) cavities are too large and expensive for widespread commercial use, and alternative designs must be considered for supplying relativistic beams to small-scale applications, including medical imaging, security screening, and scientific research in a university-scale laboratory. Laser-driven acceleration using micro-fabricated dielectric photonic structures is an attractive approach because such photonic microstructures can support accelerating fields that are 10 to 100 times higher than that of rf cavity-based accelerators. Dielectric laser accelerators (DLAs) use commercial lasers as a driving source, which are smaller and less expensive than the klystrons used to drive current rf-based accelerators. Despite the apparent need for compact and economical laser sources for laser-driven acceleration, the availability of suitable high-peak-power lasers that cover a broad spectral range is currently limited.To address the needs of several innovative acceleration mechanisms like DLA, it is proposed to develop a coherent source of mid-infrared (IR) electromagnetic radiation that can be implemented as a driving source of laser accelerators. The use of ultrashort mid-IR high peak power laser systems in various laser-driven acceleration schemes has shown the potential to greatly reduce the optical pump intensities needed to realize high acceleration gradients. The optical intensity needed to achieve a given ponderomotive potential is 25 times less when using a 5-m mid-IR laser as compared to using a 1-m near-IR solid-state laser. In addition, dielectric structure breakdown caused by multiphoton ionization can be avoided by using longer-wavelength driving lasers. Current mid-IR laser sources do not produce sufficiently short pulse durations, broad spectral bandwidths, or high energies as required by certain accelerator applications. The use of a high- peak-power mid-IR laser system in DLA could enable tabletop accelerators on the MeV to GeV scale for security scanners, medical therapy devices, and compact x-ray light sources.Ultrashort mid-IR laser sources also play a vital role in the measurement and enhancement of material properties relevant for nuclear applications. For example, photoexcitation of graphene with femtosecond mid-IR laser pulses can be used to measure the time-resolved photoconductivity in graphene for its use in radiation detection. Graphene photodetectors have the unique ability to operate at room temperatures across a broad spectral region with ultrashort response times; however, achieving high efficiency in graphene detectors remains challenging due to graphenes weak optical absorption. The current methods and materials are not capable of operating at room temperature, do not respond at mid-IR wavelengths, or cannot achieve single-shot operation. Therefore, the metrology of ultrashort mid-IR laser pulses is needed to understand the mechanisms of photoconductive gain in mid-IR detectors to enhance detector efficiency. Advanced pulse diagnostic instrumentation is needed that performs reliably and efficiently over a broad spectral range for the metrology of ultrashort mid-IR laser pulses for applications of radiation detection, IR spectroscopy, and remote sensing for trace gas detection.This dissertation reports on the design and construction of a simple and robust, short-pulse parametric source operating at a center wavelength of 5 m. The design and construction of a high-energy, short-pulse 2-m parametric source is also presented, which serves as a surrogate pumping source for the 5-m source. An elegant method for mid-IR pulse characterization is demonstrated, which makes use of ubiquitous silicon photodetectors, traditionally reserved for the characterization of near-IR radiation. In addition, a dual-chirped parametric amplification technique is extended into the mid-IR spectral region, producing a bandwidth- tunable mid-IR source in a simple design without sacrificing conversion efficiency. The design and development of a compact single-shot mid-IR prism spectrometer is also reported, and its implementation in a number of condensed matter studies at the Linac Coherent Light Source (LCLS) at the Stanford Linear Accelerator Center is discussed. Rapid tuning and optimization of a high-energy parametric laser system using the mid-IR spectrometer is demonstrated, which significantly enhances the capabilities of performing optical measurements on superconducting materials using the LCLS instrument. All of the laser sources and optical technologies presented in this dissertation were developed using relatively simple designs to provide compact and cost-effective systems to address some of the challenges facing accelerator and IR spectroscopy technologies.
Download or read book Undulators Wigglers and Their Applications written by Hideo Onuki and published by CRC Press. This book was released on 2002-10-17 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: A "wiggler" is an insertion device used for spatially concentrating radiation for research purposes, and an "undulator" is a multi-period wiggler. Undulator and wiggler devices are inserted in a free straight section of the storage ring of the synchrotron. This book explores the radiation produced by these insertion devices, the engineering and ass
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-06 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Imaging Analysis written by Freddy Adams and published by Elsevier. This book was released on 2015-06-06 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Imaging Analysis covers the advancements made over the last 50 years in chemical imaging analysis, including different analytical techniques and the ways they were developed and refined to link the composition and structure of manmade and natural materials at the nano/micro scale to the functional behavior at the macroscopic scale. In a development process that started in the early 1960s, a variety of specialized analytical techniques was developed – or adapted from existing techniques – and these techniques have matured into versatile and powerful tools for visualizing structural and compositional heterogeneity. This text explores that journey, providing a general overview of imaging techniques in diverse fields, including mass spectrometry, optical spectrometry including X-rays, electron microscopy, and beam techniques. Provides comprehensive coverage of analytical techniques used in chemical imaging analysis Explores a variety of specialized techniques Provides a general overview of imaging techniques in diverse fields
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992-02 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy and Water Development Appropriations for 2013 Dept of Energy FY 2013 justifications written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 2012 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy and Water Development Appropriations for 2013 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 2012 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Foundation for Developing New Energy Technologies written by United States. Congress. House. Committee on Science and Technology (2007). Subcommittee on Energy and Environment and published by . This book was released on 2008 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
