A5021476102- Laser-Plasma Interactions and Diagnostics
- Laser-Matter Interactions and Applications
- Laser-induced spectroscopy and plasma
- High-pressure geophysics and materials
- Laser Design and Applications
- Advanced Fiber Laser Technologies
- Animal Disease Management and Epidemiology
- Atomic and Molecular Physics
- Animal Virus Infections Studies
- Advanced X-ray Imaging Techniques
- Particle Accelerators and Free-Electron Lasers
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Magnetic confinement fusion research
- Ion-surface interactions and analysis
- Laser Material Processing Techniques
- Spectroscopy and Quantum Chemical Studies
- Solid State Laser Technologies
- Pulsed Power Technology Applications
- Particle accelerators and beam dynamics
- Viral gastroenteritis research and epidemiology
- Vector-Borne Animal Diseases
- Mass Spectrometry Techniques and Applications
- Viral Infections and Immunology Research
- Quantum optics and atomic interactions
Marvel Fusion
2022-2024
Marvell (Israel)
2022-2024
Extreme Light Infrastructure Beamlines
2013-2024
Fusion Academy
2022-2024
Fusion (United States)
2022-2024
Extreme Light Infrastructure - Nuclear Physics
2024
Czech Academy of Sciences, Institute of Physics
2013-2022
Keldysh Institute of Applied Mathematics
2018-2021
National Institutes for Quantum Science and Technology
2018-2021
Lawrence Berkeley National Laboratory
2021
In the 2015 review paper ‘Petawatt Class Lasers Worldwide’ a comprehensive overview of current status high-power facilities ${>}200~\text{TW}$ was presented. This largely based on facility specifications, with some description their uses, for instance in fundamental ultra-high-intensity interactions, secondary source generation, and inertial confinement fusion (ICF). With 2018 Nobel Prize Physics being awarded to Professors Donna Strickland Gerard Mourou development technique chirped...
Guiding of relativistically intense laser pulses with peak power 0.85 PW over 15 diffraction lengths was demonstrated by increasing the focusing strength a capillary discharge waveguide using inverse bremsstrahlung heating. This allowed for production electron beams quasimonoenergetic peaks up to 7.8 GeV, double energy that previously demonstrated. Charge 5 pC at GeV and 62 in 6 peaks, typical beam divergence 0.2 mrad.
It is shown that even a single ${e}^{\ensuremath{-}}{e}^{+}$ pair created by superstrong laser field in vacuum would cause development of an avalanchelike QED cascade which rapidly depletes the incoming pulse. This confirms Bohr's old conjecture electric critical strength ${E}_{S}={m}^{2}{c}^{3}/e\ensuremath{\hbar}$ could never be created.
The paper examines the prospects of using laser plasma as a source high-energy ions for purpose hadron beam therapy — an approach which is based on both theory and experimental results (ions are routinely observed to be accelerated in interaction high-power radiation with matter). Compared accelerators like synchrotrons cyclotrons, technology advantageous that it more compact simpler delivering from accelerator treatment room. Special target designs allow requirements ion quality satisfied....
Vector momentum distributions of Ne(n+) (n = 1,2,3) ions created by 30 fs, approximately 1 PW/cm(2) laser pulses at 795 nm have been measured using recoil-ion spectroscopy. Distinct maxima along the light polarization axis are observed 4.0 and 7.5 a.u. for Ne2+ Ne3+ production, respectively. Hence, mechanisms based on an instantaneous release two (or more) electrons can be ruled out as a dominant contribution to nonsequential strong-field multiple ionization. The positions in accord with...
Vector momentum distributions of two electrons created in double ionization Ar by 25 fs, 0.25 PW/cm(2) laser pulses at 795 nm have been measured using a "reaction microscope." At this intensity, where nonsequential dominates, distinct correlation patterns are observed the two-electron distributions. A kinematical analysis these spectra within classical "recollision model" revealed an (e,2e)-like process and excitation with subsequent tunneling second electron as different mechanisms. This...
Nanostructured thin plastic foils have been used to enhance the mechanism of laser-driven proton beam acceleration. In particular, presence a monolayer polystyrene nanospheres on target front side has drastically enhanced absorption incident 100 TW laser beam, leading consequent increase in maximum energy and charge. The cutoff increased by about 60% for optimal spheres' diameter 535 nm comparison planar foil. total number protons with energies higher than 1 MeV was approximately 5 times. To...
When high-intensity laser interaction with matter enters the regime of dominated radiation reaction, losses open way for producing short pulse high power gamma ray flashes. The gamma-ray duration and divergence are determined by amplitude plasma target density scale length. On basis theoretical analysis particle-in-cell simulations friction force incorporated, optimal conditions generating a flash tailored overcritical found.
The energy of ions accelerated by an intense electromagnetic wave in the radiation pressure dominated regime can be greatly enhanced due to a transverse expansion thin target. decreases number irradiated region resulting increase ion and longitudinal velocity. In relativistic limit, become phase locked with respect unlimited gain.
ELI-Beamlines (ELI-BL), one of the three pillars Extreme Light Infrastructure endeavour, will be in a unique position to perform research high-energy-density-physics (HEDP), plasma physics and ultra-high intensity (UHI) (1022W/cm2) laser–plasma interaction. Recently need for HED laboratory was identified P3 (plasma platform) installation under construction ELI-BL an answer. The 10 PW laser makes possible fundamental topics from high-field new extreme states matter such as radiation-dominated...
We show that a spatially well-defined layer of boron dopants in hydrogen-enriched silicon target allows the production high yield alpha particles around 109 per steradian using nanosecond, low-contrast laser pulse with nominal intensity approximately 3×1016 W cm−2. This result can be ascribed to nature long laser-pulse interaction and expanding plasma, as well optimal geometry composition. The possibility an impact on future applications such nuclear fusion without neutron-induced...
Abstract Protontherapy is hadrontherapy’s fastest-growing modality and a pillar in the battle against cancer. Hadrontherapy’s superiority lies its inverted depth-dose profile, hence tumour-confined irradiation. Protons, however, lack distinct radiobiological advantages over photons or electrons. Higher LET (Linear Energy Transfer) 12 C-ions can overcome cancer radioresistance: DNA lesion complexity increases with LET, resulting efficient cell killing, i.e. higher Relative Biological...
The nuclear reaction known as proton-boron fusion has been triggered by a subnanosecond laser system focused onto thick boron nitride target at modest intensity (∼10^{16}W/cm^{2}), resulting in record yield of generated α particles. estimated value particles emitted per pulse is around 10^{11}, thus orders magnitude higher than any other experimental result previously reported. accelerated α-particle stream shows unique features terms kinetic energy (up to 10 MeV), duration (∼10 ns), and...
We show the laser-driven acceleration of unprecedented, collimated (2 mrad divergence), and quasi-monoenergetic (25% energy spread) electron beams with up to 50 MeV at 1 kHz repetition rate. The laser driver is a multi-cycle (15 fs) optical parametric chirped pulse amplification system, operating 26 mJ (1.7 TW). scalability technology reported in this work pave way toward developing high-brilliance x-ray sources for medical imaging innovative devices brain cancer treatment represent step...
Regenerative pulse shaping is used to alleviate gain narrowing during ultrashort-pulse amplification. Amplification bandwidths of ~100 nm, or nearly three times wider than the traditional gain-narrowing limit, are produced with a modified Ti:sapphire regenerative amplifier. This novel amplifier has been amplify pulses 5-mJ level bandwidth sufficient support ~10-fs pulses.
Electron emission for single ionization of Ne by 25 fs, 1.0 PW/cm(2) laser pulses at 800 nm has been investigated in a kinematically complete experiment using "reaction microscope." Mapping the final state momentum space with high resolution, distinct local minimum is observed P(e parallel )=0, where ) electron to polarization. Whereas tunneling theory predicts maximum zero momentum, our findings are good agreement recent semiclassical predictions which were interpreted be due "recollision."
The photoelectron spectra of C60 ionized using a 790 nm laser with pulse durations varying from 25 fs to 5 ps have been determined. For pulses, in the absence fragmentation, ionization mechanism is direct multiphoton clear observation above threshold ionization. As duration increased, this becomes dominated by statistical due equilibration among electronic degrees freedom. on order coupling vibrational freedom occurs and well-known phenomenon delayed (&mgr;s) observed.
The dynamics of an electron bunch irradiated by two focused colliding super-intense laser pulses and the resulting γ e(-)e(+) production are studied. Due to attractors in a standing wave created photon emission pair production, general, more efficient with linearly polarized than circularly ones. dependence key parameters on intensity wavelength allows us identify conditions for cascade development γe(-)e(+) plasma creation.
The Horizon 2020 Project EuPRAXIA ("European Plasma Research Accelerator with eXcellence In Applications") is preparing a conceptual design report of highly compact and cost-effective European facility multi-GeV electron beams using plasma as the acceleration medium. accelerator will be based on laser and/or beam driven approach used for photon science, high-energy physics (HEP) detector tests, other applications such X-ray sources medical imaging or material processing. started in November...
Abstract The new generation of laser facilities is expected to deliver short (10 fs–100 fs) pulses with 10–100 PW peak power. This opens an opportunity study matter at extreme intensities in the laboratory and provides access physics. Here we propose scatter GeV-class electron beams from laser-plasma accelerators a multi-PW normal incidence. In this configuration, one can both create accelerate electron-positron pairs. particles are generated focus gain relativistic momentum direction...
Recent experiments done at Prague with the 600 J/0.2 ns PALS laser interacting a layer of boron dopants in hydrogen enriched target have produced around 109 alphas. We suggest that these unexpected very high fusion reactions proton 11B indicate an avalanche multiplication for measured anomalously nuclear reaction yields. This can be explained by elastic collisions broad keV energy band, which is coincident p-11B cross section, way through generation three secondary alpha particles from...
The main direction proposed by the community of experts in field laser-driven ion acceleration is to improve particle beam features (maximum energy, charge, emittance, divergence, monochromaticity, shot-to-shot stability) order demonstrate reliable and compact approaches be used for multidisciplinary applications, thus, principle, reducing overall cost a laser-based facility compared conventional accelerator one and, at same time, demonstrating innovative more effective sample irradiation...