A5102025451- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Laser Design and Applications
- High-pressure geophysics and materials
- Advanced X-ray Imaging Techniques
- Laser-Matter Interactions and Applications
- Planetary Science and Exploration
- Advanced Chemical Physics Studies
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Astro and Planetary Science
- Diamond and Carbon-based Materials Research
- Optical Systems and Laser Technology
- Ocular and Laser Science Research
- Mass Spectrometry Techniques and Applications
- Supramolecular Chemistry and Complexes
- Crystallography and molecular interactions
- Photocathodes and Microchannel Plates
- Advanced Frequency and Time Standards
- Metal complexes synthesis and properties
- Pulsars and Gravitational Waves Research
- Plasma Diagnostics and Applications
- Inorganic Fluorides and Related Compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Geophysics and Sensor Technology
The University of Texas at Austin
2018-2025
Lawrence Livermore National Laboratory
2018-2024
University of California, Los Angeles
2019-2023
Massachusetts Institute of Technology
2023
Rutherford Appleton Laboratory
2023
Florida Agricultural and Mechanical University
2023
General Atomics (United States)
2023
University of Michigan
2023
ELI-HU Research and Development Non-Profit
2019
University of Rochester
2019
An ultrabroad-band x-ray source, with photon energies from 10 keV to <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mo>></a:mo><a:mn>1</a:mn></a:math> MeV, based on a picosecond laser-driven plasma accelerator, is characterized and used radiograph high-energy-density-science relevant targets. The measured yield of <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:msup><b:mn>10</b:mn><b:mn>12</b:mn></b:msup></b:math> photons/shot reaching the necessary yields radiograph, in...
An x-ray source generated by an electron beam produced using a Self-Modulated Laser Wakefield Accelerator (SM-LWFA) is explored for use in high energy density science facilities. By colliding the beam, with maximum of 380 MeV, total charge >10 nC and divergence 64 × 100 mrad, from SM-LWFA driven 1 ps 120 J laser, into high-Z foil, x/gamma-ray was generated. A broadband bremsstrahlung spectrum temperatures ranging 0.8 to 2 MeV measured almost orders magnitude flux increase when compared other...
A scaling study of short-pulse laser-driven proton and electron acceleration was conducted as a function pulse duration, laser energy, intensity in the multi-picosecond (ps) regime (∼0.8 ps–20 ps). Maximum energies significantly greater than established laws were observed, consistent with observations at other multi-ps facilities. In addition, maximum temperatures this found to be strongly dependent on duration preplasma conditions. modified model is presented that able better represent...
Laser-plasma-based accelerators are now able to provide the scientific community with novel high-energy light sources that essential study density matter, inertial confinement fusion, astrophysical systems, and fundamental plasma physics. Due transient high-density properties of these it is develop in hard x-ray energy range (0.01–1 MeV) directional have high yield, low divergence, short duration (ps sub-ps). In this work, we show by using a Laser accelerator, possible generate broadband...
Laser-plasma accelerators (LPAs) driven by picosecond-scale, kilojoule-class lasers can generate particle beams and x-ray sources that could be utilized in experiments multi-kilojoule, high-energy-density science (HEDS) drivers such as the OMEGA laser at Laboratory for Laser Energetics (LLE) or National Ignition Facility Lawrence Livermore Laboratory. This paper reports on development of first LPA a short-pulse, (OMEGA EP) connected to multi-kilojoule HEDS driver (OMEGA). In experiments,...
<title>Abstract</title> Understanding dense fuel hydrodynamics is critical for predicting burning plasma behavior in laser-driven inertial confinement fusion. Traditional diagnostic sources face many limitations brightness, spatio-temporal resolution, and their ability to capture kinetic effects electromagnetic fields influencing interaction dynamics. We present a dual-probe, multi-messenger laser wakefield accelerator system, combining ultrafast X-rays relativistic electron beams at 1~Hz,...
This paper presents an experimental and theoretical study of betatron x-ray radiation from laser wakefield acceleration in the self-modulated regime. Our experiments use picosecond duration pulses up to 150 J, for plasmas with electronic densities on order 1019 cm−3. In regime, electrons accelerated wake pulse are subject both longitudinal plasma transverse electrical fields. As a result, they undergo oscillations radiate synchrotron-like spectrum. our configuration, about 300 MeV, as well...
We report on the increase in accelerated electron number and energy using compound parabolic concentrator (CPC) targets from a short-pulse ($\ensuremath{\sim}150$ fs), high-intensity ($>{10}^{18}$ W/${\mathrm{cm}}^{2}$), high-contrast ($\ensuremath{\sim}{10}^{8}$) laser-solid interaction. experimental measurements CPC where hot-electron temperature is enhanced up to $\ensuremath{\sim}9$ times when compared planar targets. The measured target...
A comparative experimental study of betatron x-ray radiation from laser wakefield acceleration in the blowout and self-modulated regimes is presented. Our experiments use picosecond duration pulses up to 150 J (self-modulated regime) 60 fs 10 (blowout regime), for plasmas with electronic densities on order 1019 cm−3. In regime, where has been very little studied compared electrons accelerated wake pulse are subject both longitudinal plasma transverse electrical fields. As a result, their...
A versatile set of methods for analyzing x-ray energy spectra and photon flux has been developed laser plasma accelerator experiments driven by picosecond lasers. Forward fit provides extrapolated broad spectrum measurements, while Ross pair differential average transmission analysis provide directly measured data points using a particular diagnostic. Combining these allows the measurement with improved confidence. We apply to three diagnostics (filter wheel, stacked image plate...
We report on experimental results from a high-intensity laser interaction with cone targets that increase the number (×3) and temperature of measured hot electrons over traditional planar target. This is caused by substantial in plasma density within target geometry, which was induced 17 ± 9 mJ prepulse arrived 1.5 ns prior to main high intensity (&gt;1019 W/cm2). Three-dimensional hydrodynamic simulations are conducted using hydra show create substantially longer denser than due...
A comparative study of x-ray sources generated with different mechanisms from self-modulated laser wakefield acceleration (SM-LWFA) electrons was performed to compare the source size or spatial resolution for use in high energy density science applications. We examine betatron, inverse Compton scattering, and bremsstrahlung radiation a Fresnel diffraction based formalism modified ray tracing model. observe dependence on generation process, parameters, what is possible other regimes LWFA, as...
Tricarbonylrhenium(I) halide complexes of the non-racemic chiral ligand 2,6-bis[(4R,5R)-dimethyl-1,3-dioxan-2-yl]pyridine (L1), namely fac-[ReX(CO)3(L1)] (X = Cl, Br or I), have been prepared. In these is bound in a bidentate fashion, with N atom pyridine ring and an O one acetal rings co-ordinated to octahedral metal centre. The mode confirmed by crystal structure fac-[ReBr(CO)3(L1)]. There are four possible diastereoisomers, depending on configuration at centre acetal-carbon ring;...
The two-temperature relativistic electron spectrum from a low-density ($3\ifmmode\times\else\texttimes\fi{}{10}^{17}\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}3}$) self-modulated laser wakefield accelerator (SM-LWFA) is observed to transition between temperatures of $19\ifmmode\pm\else\textpm\fi{}0.65$ and $46\ifmmode\pm\else\textpm\fi{}2.45\text{ }\mathrm{MeV}$ at an energy about 100 MeV. When the electrons are dispersed orthogonally polarization, their above 60 MeV shows forking...
The generation of hot, directional electrons via laser-driven stimulated Raman scattering (SRS) is a topic great importance in inertial confinement fusion (ICF) schemes. Little recent research has been dedicated to this process at high laser intensity, which back, side, and forward scatter simultaneously occur energy density plasmas, relevance to, for example, shock ignition ICF. We present an experimental particle-in-cell (PIC) investigation hot electron production from SRS the near-forward...
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