Incoherent plasma X-ray sources. Betatron/Compton radiation. Laser-driven X-ray free-electron lasers. For each of these research areas, dedicated beamlines will be built to provide a unique combination of X-ray sources to the user community. This is the mission of the Research Activity 2 (RA2). The RA2 application has a well-defined balance
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Sep 29, 2021 · The recent development of petawatt-class laser systems sets a focus on the development of ultra-thin free-standing targets to access enhanced particle acceleration schemes vital for future applications, such as, medical and laser-driven nuclear physics. Specific strategies are required to improve the laser-to-particle energy conversion efficiency and increase the …
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IDM Members' meetings for 2022 will be held from 12h45 to 14h30.A zoom link or venue to be sent out before the time.. Wednesday 16 February; Wednesday 11 May; Wednesday 10 August; Wednesday 09 November
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condensed matter. Using direct fast laser spectroscopy techniques to probe hydrogen and deuterium precompressed in a diamond anvil cell and laser heated on microsecond timescales, we observe an onset of metal-like reflectance in the …
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1 Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan 2 Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan. Abstract Sound velocity of laser-irradiated iron foils was measured with side-on x-ray radiograph technique. Iron foils were irradiated with two-stepped laser pulse to reach earth's
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Efficient laser shock processing of materials requires a good characterization of their dynamic response to pulsed compression, and predictive numerical models to simulate the thermomechanical processes governing this response. Due to the extremely high strain rates involved, the kinetics of these processes should be accounted for. In this paper, we present an …
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Jun 03, 2020 · Ramp-compressed samples are probed by diffraction of x rays generated by a laser-driven source foil. The resulting diffraction lines provide insights into phase changes, or structural transitions, that can occur in materials under extreme pressure (see "NIF's TARDIS Aims to Conquer Time and Space" ).
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Interaction of Ultra-Intense Lasers with Plasmas: From Fusion to Particle Accelerators. Laser wakefield acceleration and self-injection. Field decay due to return current screening in a proton driver wakefield accelerator. Laser Interactions with Nanoscale Solid Targets at Ultra-High Intensities: Ion Accelerator on a Desktop. SiC accelerator
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Laser-driven plasma loader for shockless compression provides a new approach to study the rapid compression response of materials. But little information about the "plasma piston" can be obtained. The objective of the current study tried to map out a whole procedure of laser-driven plasma jet and shockless compression of solid materials.
Get a QuoteNov 18, 2020 · In ramp-wave compression experiments, the input drive pressure to the experimental setup may be exerted through one of a number of different mechanisms (e.g., magnetic fields, gas-gun-driven impactors, or high-energy lasers) and is generally required for simulating such experiments.
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Aug 01, 2012 · Laser-driven plasma loader for shockless compression provides a new approach to study the rapid compression response of materials. But little information about the "plasma piston" can be obtained. The objective of the current study tried to map out a whole procedure of laser-driven plasma jet and shockless compression of solid materials.
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This book provides an introductory overview of warm dense matter research for new postgraduate students entering the field. Author David Riley, based at the Centre for Plasma Physics at Queen's University Belfast, covers a broad range of topics with an emphasis on experimental techniques.
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May 13, 2011 · Laser-driven plasma loader for shockless compression provides a new approach to study the rapid compression response of materials not attainable in conventional shock experiments. In this method, the strain rate is varied from ∼10 6 /s to ∼10 8 /s, significantly higher than other shockless compression methods. Thus, this loading process is attractive in the …
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Nov 26, 2014 · Laser-driven plasma loader for shockless compression provides a new approach to study the rapid compression response of materials not attainable in conventional shock experiments. In this method, the strain rate is varied from {approx}10{sup 6}/s to {approx}10{sup 8}/s, significantly higher than other shockless compression methods.
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1 Institute of Laser Engineering, Osaka University, Suita, Osaka 565-0871, Japan 2 Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790-8577, Japan. Abstract Sound velocity of laser-irradiated iron foils was measured with side-on x-ray radiograph technique. Iron foils were irradiated with two-stepped laser pulse to reach earth's
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Mar 03, 2021 · Structured solid targets are widely investigated to increase the energy absorption of high-power laser pulses so as to achieve efficient ion …
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A typical laser-plasma accelerator (LPA) is driven by a single, ultrarelativistic laser pulse from terawatt- or petawatt-class lasers. Recently, there has been some theoretical work on the use of copropagating two-color laser pulses (CTLP) for LPA research. Here, we demonstrate the first LPA driven by CTLP where we observed substantial electron
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In ramp experiments the solid state can be maintained to high These capabilities provide the energy and control necessary to ramp compress matter to several terapascals Laser-driven plasma loader for shockless compression and acceleration of samples in the solid state. Phys. Rev. Lett. 92:075002. doi: 10.1103/PhysRevLett.92
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Oct 01, 2006 · In this section we describe our laser based experimental technique for reaching high pressures in a quasi-isentropic compression. A schematic of the target package and experimental arrangement is shown in Fig. 2.Energy is deposited onto the front surface of a plastic reservoir, resulting in rapid heating and pressurization of the reservoir material.
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Nov 06, 2017 · Grating targets have been investigated for a wide variety of applications, including laser-driven ion acceleration [13, 14, 16], synchrotron emission, electron acceleration [18, 19] and control [20, 21] or enhancement [8, 22–25] of HHG from laser–solid interaction.
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