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Ultrabright X Ray Laser Scattering For Dynamic Warm Dense Matter Physics
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Book Synopsis Ultrabright X-ray Laser Scattering for Dynamic Warm Dense Matter Physics by :
Download or read book Ultrabright X-ray Laser Scattering for Dynamic Warm Dense Matter Physics written by and published by . This book was released on 2015 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In megabar shock waves, materials compress and undergo a phase transition to a dense charged-particle system that is dominated by strong correlations and quantum effects. This complex state, known as warm dense matter, exists in planetary interiors and many laboratory experiments (for example, during high-power laser interactions with solids or the compression phase of inertial confinement fusion implosions). Here, we apply record peak brightness X-rays at the Linac Coherent Light Source to resolve ionic interactions at atomic (ångström) scale lengths and to determine their physical properties. Our in situ measurements characterize the compressed lattice and resolve the transition to warm dense matter, demonstrating that short-range repulsion between ions must be accounted for to obtain accurate structure factor and equation of state data. Additionally, the unique properties of the X-ray laser provide plasmon spectra that yield the temperature and density with unprecedented precision at micrometre-scale resolution in dynamic compression experiments.
Book Synopsis The Physics of Laser Plasmas and Applications - Volume 2 by : Hideaki Takabe
Download or read book The Physics of Laser Plasmas and Applications - Volume 2 written by Hideaki Takabe and published by Springer Nature. This book was released on with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-ray Free Electron Lasers by : Sébastien Boutet
Download or read book X-ray Free Electron Lasers written by Sébastien Boutet and published by Springer. This book was released on 2018-12-27 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: The timely volume describes recent discoveries and method developments that have revolutionized Structural Biology with the advent of X-ray Free Electron Lasers. It provides, for the first time, a comprehensive examination of this cutting-edge technology. It discusses of-the-moment topics such as growth and detection of nanocrystals, Sample Delivery Techniques for serial femtosecond crystallography, data collection methods at XFELs, and more. This book aims to provide the readers with an overview of the new methods that have been recently developed as well as a prospective on new methods under development. It highlights the most important and novel Structural Discoveries made recently with XFELS, contextualized with a big-picture discussion of future developments.
Book Synopsis X-ray Scattering from Warm Dense Matter by : María Elena García Saiz
Download or read book X-ray Scattering from Warm Dense Matter written by María Elena García Saiz and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-ray Scattering from Warm Dense Matter by : Steven Jonathan White
Download or read book X-ray Scattering from Warm Dense Matter written by Steven Jonathan White and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soft X-Ray Thomson Scattering in Warm Dense Hydrogen at FLASH. by :
Download or read book Soft X-Ray Thomson Scattering in Warm Dense Hydrogen at FLASH. written by and published by . This book was released on 2009 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present collective Thomson scattering with soft x-ray free electron laser radiation as a method to track the evolution of warm dense matter plasmas with ≈200 fs time resolution. In a pump-probe scheme an 800 nm laser heats a 20 [mu]m hydrogen droplet to the plasma state. After a variable time delay in the order of ps the plasma is probed by an x-ray ultra violet (XUV) pulse which scatters from the target and is recorded spectrally. Alternatively, in a self-Thomson scattering experiment, a single XUV pulse heats the target while a portion of its photons are being scattered probing the target. From such inelastic x-ray scattering spectra free electron temperature and density can be inferred giving insight on relaxation time scales in plasmas as well as the equation of state. We prove the feasibility of this method in the XUV range utilizing the free electron laser facility in Hamburg, FLASH. We recorded Thomson scattering spectra for hydrogen plasma, both in the self-scattering and in the pump-probe mode using optical laser heating.
Book Synopsis Predictions of X-ray Scattering Spectra in Warm Dense Matter by :
Download or read book Predictions of X-ray Scattering Spectra in Warm Dense Matter written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-Intensity X-rays - Interaction with Matter by : Stefan P. Hau-Riege
Download or read book High-Intensity X-rays - Interaction with Matter written by Stefan P. Hau-Riege and published by John Wiley & Sons. This book was released on 2012-09-19 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling the need for a book bridging the effect of matter on X-ray radiation and the interaction of x-rays with plasmas, this monograph provides comprehensive coverage of the topic. As such, it presents and explains such powerful new X-ray sources as X-ray free-electron lasers, as well as short pulse interactions with solids, clusters, molecules, and plasmas, and X-ray matter interactions as a diagnostic tool. Equally useful for researchers and practitioners working in the field.
Book Synopsis Study of Laser-irradiated Gas Jet Plasmas and Warm Dense Matter Using X-ray Scattering, Spectroscopy, and Imaging by : Nathan Louis Kugland
Download or read book Study of Laser-irradiated Gas Jet Plasmas and Warm Dense Matter Using X-ray Scattering, Spectroscopy, and Imaging written by Nathan Louis Kugland and published by . This book was released on 2010 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Basic X-ray Scattering for Soft Matter by : Wilhelmus Hendrikus Jeu
Download or read book Basic X-ray Scattering for Soft Matter written by Wilhelmus Hendrikus Jeu and published by Oxford University Press. This book was released on 2016 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-ray scattering is a well-established technique in materials science. The aim of this text is to explain basic principles and applications of x-ray scattering in a simple way using many practical examples followed by more elaborate case studies. It contains a separate chapter on the different types of order/disorder in soft matter that play such an important role in modern self-assembling systems. Finally the last chapter treats soft matter surfaces and thin film that are increasingly used in coatings and in many technological applications, such as liquid crystal displays and nanostructured block copolymer films
Book Synopsis X-Ray Scattering of Soft Matter by : Norbert Stribeck
Download or read book X-Ray Scattering of Soft Matter written by Norbert Stribeck and published by Springer Science & Business Media. This book was released on 2007-05-16 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is a useful ready-reference guide to the analytical power of modern X-ray scattering in the field of soft matter. The author describes simple tools that can elucidate the mechanisms of structure evolution in the studied materials, and follows this up with a step-by-step guide to more advanced methods. Data analysis based on clear, unequivocal results is rendered simple and straightforward – with a stress on careful planning of experiments and adequate recording of all required data.
Book Synopsis Inelastic X-ray Scattering Measurements of Ionization in Warm, Dense Matter by : Paul Davis
Download or read book Inelastic X-ray Scattering Measurements of Ionization in Warm, Dense Matter written by Paul Davis and published by . This book was released on 2012 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work we demonstrate spectrally resolved x-ray scattering from electron-plasma waves in shock-compressed deuterium and proton-heated matter. Because the spectral signature of inelastic x-ray scattering is strongly dependent on the free electron density of the system, it is used to infer ionization in dynamically heated samples. Using 2-6 ns, 500 J laser pulses from LLNL's Janus laser, we shocked liquid deuterium to pressures approaching 50 GPa, reaching compressions of 4 times liquid density. A second laser produced intense 2 keV x-rays. By collecting and spectrally dispersing forward scattered photons at 45 degrees, the onset of ionization was detected at compressions of about 3 times in the form of plasmon oscillations. Backscattered x-rays bolstered this observation by measuring the free electron distribution through Compton scattering. Comparison with simulations shows very close agreement between the pressure dependence of ionization and molecular dissociation in dynamically compressed deuterium. In a second set of experiments, a 10 ps, 200 J Titan laser pulse was split into two beams. One created a stream of MeV protons to heat samples of boron and boron-nitride and the other pumped 4.5 keV K-alpha radiation in a titanium foil to probe the hot target. We observed scattered x-rays 300 ps after heating, noting a strong difference in average ionization between the two target materials at temperatures of 16 eV and very similar mass densities. Comparison with electron structure calculations suggests that this difference is due to a persistence of long-range ion structure in BN resulting in high-temperature band structure. These results underscore the importance of understanding the complex electron structure of materials even at electron-volt temperatures and gigapascal pressures. Our results provide new data to guide the theoretical modeling of warm, dense matter important to understanding giant planets and inertial fusion targets.
Book Synopsis Simulations of X-ray Thomson Scattering from Warm Dense Matter by : Ghulam Shabbir Naz
Download or read book Simulations of X-ray Thomson Scattering from Warm Dense Matter written by Ghulam Shabbir Naz and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-Ray Scattering From Warm Dense Matter by : M. E. Garcia Saiz
Download or read book X-Ray Scattering From Warm Dense Matter written by M. E. Garcia Saiz and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling X-ray Thomson Scattering Spectra of Warm Dense Matter by :
Download or read book Modeling X-ray Thomson Scattering Spectra of Warm Dense Matter written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Using Collective X-ray Thomson Scattering to Measure Temperature and Density of Warm Dense Matter by :
Download or read book Using Collective X-ray Thomson Scattering to Measure Temperature and Density of Warm Dense Matter written by and published by . This book was released on 2009 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collective x-ray Thomson scattering allows measuring plasmons, i.e electron plasma oscillations (Langmuir waves). This is manifest in the appearance of spectrally up- and down-shifted spectral features in addition to the Rayleigh signal. The ratio of the up- and down-shifted signals is directly related to detailed balance, allowing to determine the plasma temperature from first principles. The spectral shift of the plasmon signals is sensitive to temperature and electron density. We discuss the experimental considerations that have to be fulfilled to observe plasmon signals with x-ray Thomson scattering. As an example, we describe an experiment that used the Cl Ly-[alpha] x-ray line at 2.96 keV to measure collective Thomson scattering from solid beryllium, isochorically heated to 18 eV. Since temperature measurement based on detailed balance is based on first principles, this method is important to validate models that, for example, calculate the static ion-ion structure factor S{sub ii}(k).
Book Synopsis Evolution of Elastic X-ray Scattering in Laser-Shocked Warm Dense Li by :
Download or read book Evolution of Elastic X-ray Scattering in Laser-Shocked Warm Dense Li written by and published by . This book was released on 2009 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have studied the dynamics of warm dense Li with near-elastic x-ray scattering. Li foils were heated and compressed using shock waves driven by 4 ns long laser pulses. Separate 1 ns long laser pulses were used to generate a bright source of 2.96 keV Cl Ly-[alpha] photons for x-ray scattering, and the spectrum of scattered photons was recorded at a scattering angle of 120{sup o} using a HOPG crystal operated in the von Hamos geometry. A variable delay between the heater and backlighter laser beams measured the scattering time evolution. Comparison with radiation hydrodynamics simulations shows that the plasma is highly coupled during the first several nanoseconds, then relaxes to a moderate coupling state at later times. Near-elastic scattering amplitudes have been successfully simulated using the screened one-component plasma model. Our main finding is that the near-elastic scattering amplitudes are quite sensitive to the mean ionization state {bar Z}, and by extension to the choice of ionization model in the radiation-hydrodynamics simulations used to predict plasma properties within the shocked Li.
