Ultra-high intensity
Laser-plasma acceleration at ultra high intensity - numerical modeling
... at Ultra High Intensity - Numerical Modeling 58 important to note that at the onset of the ultra-high intensity regime the improvements in maximum particle energy and angular ...
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Optical performance and laser induced damage threshold improvement of diffraction gratings used as compressors in ultra high intensity lasers
... Commissariat a` lÕEnergie Atomique, Centre dÕEtudes Scientifiques et Techniques dÕAquitaine, BP2, F-33114 Le Barp, France Received 22 July 2005; received in revised form 26 October 2005; accepted 27 October 2005 Abstract ...
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Effect of turbulence on the wavefront of an ultra high intensity laser beam
... ABSTRACT Ultra high intensity lasers face thermal management issues that limit their repetition rates. The key challenge is to efficiently evacuate the heat deposited in the amplifier by the optical ...
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Massively parallel algorithms for realistic PIC simulations of ultra high intensity laser-plasma interaction, application to attosecond pulses separation of Doppler harmonics
... of high order harmonics generated in the relativistic regime, the plasma mirror curva- ture significantly increases the attosecond pulses divergence and prevents their separation with the attosecond lighthouse ...
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Experimental Study of Proton Acceleration with Ultra-High Intensity, High Contrast Laser Beam
... of high contrast beams enables the use of thinner targets which in turns increases the proton cutoff ...moderate intensity beam to produce a plasma gradient on the illuminated surface of a metallic target ...
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High Plasmodium infection intensity in naturally infected malaria vectors in Africa
... very high oocyst numbers has been reported in nature ( Pringle, 1966; Billingsley et ...very high oocyst loads are also observed in direct membrane feeding assays in the region where volunteer blood-donors ...
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Designs for ultra-high efficiency grid-connected power conversion
... The modulation of power through the blocks of the converter is accomplished by controlling the switching function of each block relative to the series resonant current. [r] ...
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High relative wages and high work intensity: The French food processing model in international perspective
... Beyond the crucial role of the statutory minimum wage (which is high in relative terms, see section 1), this apparent paradox can be explained by the role traditionally played by collective agreements in setting ...
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Nonlinear ionization of organic molecules in high intensity laser fields
... the length of the cylinder projected on the detector. f is the ionization branching ratio compared to neutral path- ways such as dissociation and is taken here to be indepen- dent of I. W 共I兲 is the intensity ...
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Ferroelectric Ceramic Detectors for Ultra-High Field Magnetic Resonance
... electric fields experiment equivalent variations (concomitant high magnetic and high electric fields). Accordingly, the theoretical SNR was higher for the ceramic resonator than for a solenoid with similar ...
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Filler effect of mineral powders on ultra high performance concrete
... INTRODUCTION Ultra High Performance Concrete (UHPC) have been under development during the last two decades with the main objective of pushing concrete to its limits in terms of structural and durability ...
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Calculation of Net Emission Coefficient for High Intensity Discharge Lamps
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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High intensity noise generation for extremely large reverberant room test applications
... Figure 1: Acoustic Test Spectra Requirements The next design issue was to determine the number and type of acoustic modulators or noise generators that would be needed to create the enormous sound power necessary to ...
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Analytic fluid theory of beam spiraling in high-intensity cyclotrons
... For the simulations we present in this article, we choose the same beam parameters as the ones used in [ 3 ] for the study of a 1 mA, 3 MeV coasting beam in PSI injector II. With these parameters, we find 2 0:8. This ...
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Diffraction gratings: from principles to applications in high-intensity lasers
... FIGURE 17. Crazing due to coating stress on a H f O 2 /SiO 2 E-beam Phase Vapor Deposited mirror stack,from [ 124 ]. 6.1.c. From dielectric gratings to hybrid metallo-dielectric gratings Principle One of the first ...
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Interstitial devices for minimally invasive thermal ablation by high-intensity ultrasound.
... heat and inducing coagulation necroses without geometric focusing of the beam. An interstitial approach is thus very safe because the exponential decrease with distance of the deposited energy results in heating only ...
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Ultra-high neutrino fluxes as a probe for non-standard physics
... which are within a factor of roughly 2 of each other by the time they reach the earth [ 44 ]. The potential of the neutrino telescopes to probe new physics using absolute flux ratios has been studied in [ 22 , 45 – 53 ]. ...
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Innovative precast bridge superstructure using ultra high performance concrete girders
... In this paper, an innovative bridge design is proposed, which introduces a new hybrid superstructure system utilizing ultra high performance concrete (UHPC) for the girders and normal or high ...
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Microwave photoresistance in an ultra-high-quality GaAs quantum well
... * Corresponding author: zudov@physics.umn.edu While the above prediction has been known for more than a decade, it remained unclear if it could ever be tested experi- mentally. The lack of such experiments, at least in ...
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Ultra-high-reflectivity photonic-bandgap mirrors in a ridge SOI waveguide
... In figure 2 , we show the impact of the hole diameter on the modal reflectivity R. The computations are performed for n = 1.44 and for λ = 1.5 µm, and the displayed data are restricted to periodicities for which the ...
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