Generation of ultrashort X-ray bursts without attosecond frequency modulation in Coulomb collisions of nuclei of diatomic heteronuclear molecules ionised by an ultraintense laser pulse

2019 ◽  
Vol 49 (4) ◽  
pp. 330-336
Author(s):  
I R Khairulin ◽  
M Yu Emelin ◽  
M Yu Ryabikin
Keyword(s):  
Laser Pulse ◽  
Frequency Modulation ◽  
Coulomb Collisions ◽  
X Ray ◽  
Heteronuclear Molecules

Performance comparison of the neon-like chromium soft x-ray lasing driven by a double laser pulse with different duration

1999 ◽  
Vol 8 (6) ◽  
pp. 463-468 ◽  
Author(s):  
Li Yu-tong ◽  
Gu Yu-qiu ◽  
Li Ying-jun ◽  
Zhang Jie ◽  
Chun-yu Shu-tai ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Performance Comparison ◽  
X Ray ◽  
Double Laser Pulse

scholarly journals Linear Breit-Wheeler pair production by high-energy bremsstrahlung photons colliding with an intense x-ray laser pulse

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
A. Golub ◽  
S. Villalba-Chávez ◽  
H. Ruhl ◽  
C. Müller
Keyword(s):  
Laser Pulse ◽  
Pair Production ◽  
High Energy ◽  
X Ray ◽  
Bremsstrahlung Photons

X-ray-boosted photoionization for the measurement of an intense laser pulse

2013 ◽  
Vol 22 (6) ◽  
pp. 063201
Author(s):  
Yu-Cheng Ge ◽  
Hai-Ping He
Keyword(s):  
Laser Pulse ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
X Ray

High-frequency modulation of an x-ray beam by diffraction on surface acoustic waves: application to the design of a MHz-range chopper and to digital data transfer by x rays

1998 ◽  
Author(s):  
Remi Tucoulou ◽  
Dmitry V. Roshchupkin ◽  
Olivier Mathon ◽  
Igor A. Schelokov ◽  
Michel Brunel
Keyword(s):  
Frequency Modulation ◽  
Acoustic Waves ◽  
High Frequency ◽  
Data Transfer ◽  
Surface Acoustic Waves ◽  
Digital Data ◽  
X Rays ◽  
X Ray

Surface compositions of 9XC and R6M5 tool steels after laser pulse irradiation according to X-ray photoelectron spectroscopy data

2011 ◽  
Vol 5 (3) ◽  
pp. 431-439 ◽  
Author(s):  
A. T. Kozakov ◽  
S. I. Yares’ko ◽  
V. I. Kolesnikov ◽  
A. V. Sidashov
Keyword(s):  
Laser Pulse ◽  
Photoelectron Spectroscopy ◽  
Spectroscopy Data ◽  
Tool Steels ◽  
Pulse Irradiation ◽  
X Ray

scholarly journals Two-temperature magnetohydrodynamic simulations for sub-relativistic active galactic nucleus jets: dependence on the fraction of the electron heating

2020 ◽  
Vol 493 (4) ◽  
pp. 5761-5772 ◽  
Author(s):  
Takumi Ohmura ◽  
Mami Machida ◽  
Kenji Nakamura ◽  
Yuki Kudoh ◽  
Ryoji Matsumoto
Keyword(s):  
Electron Temperature ◽  
X Rays ◽  
Ion Temperature ◽  
Temperature Plasma ◽  
Electron Heating ◽  
Coulomb Collisions ◽  
X Ray ◽  
Jet Plasma ◽  
Magnetohydrodynamic Simulations ◽  
Two Temperature

ABSTRACT We present the results of two-temperature magnetohydrodynamic simulations of the propagation of sub-relativistic jets of active galactic nuclei. The dependence of the electron and ion temperature distributions on the fraction of electron heating, fe, at the shock front is studied for fe = 0, 0.05, and 0.2. Numerical results indicate that in sub-relativistic, rarefied jets, the jet plasma crossing the terminal shock forms a hot, two-temperature plasma in which the ion temperature is higher than the electron temperature. The two-temperature plasma expands and forms a backflow referred to as a cocoon, in which the ion temperature remains higher than the electron temperature for longer than 100 Myr. Electrons in the cocoon are continuously heated by ions through Coulomb collisions, and the electron temperature thus remains at Te > 109 K in the cocoon. X-ray emissions from the cocoon are weak because the electron number density is low. Meanwhile, X-rays are emitted from the shocked intracluster medium (ICM) surrounding the cocoon. Mixing of the jet plasma and the shocked ICM through the Kelvin–Helmholtz instability at the interface enhances X-ray emissions around the contact discontinuity between the cocoon and shocked ICM.

scholarly journals Nonthermal graphitization of diamond induced by a femtosecond x-ray laser pulse

2013 ◽  
Vol 88 (22) ◽  
Author(s):  
N. Medvedev ◽  
H. O. Jeschke ◽  
B. Ziaja
Keyword(s):  
Laser Pulse ◽  
X Ray

Enhancement of Double Auger Decay Probability in Xenon Clusters Irradiated with a Soft-X-Ray Laser Pulse

2007 ◽  
Vol 99 (4) ◽  
Author(s):  
S. Namba ◽  
N. Hasegawa ◽  
M. Nishikino ◽  
T. Kawachi ◽  
M. Kishimoto ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Auger Decay ◽  
Decay Probability ◽  
X Ray ◽  
Xenon Clusters

Core-Shell SiO2/Ag Composite Spheres Prepared by Electrical Exploding Wire Plasma Technique: Synthesis and Characterization

2021 ◽  
Vol 19 (10) ◽  
pp. 82-88
Author(s):  
Duaa A. Uamran ◽  
Qasim Hassan Ubaid ◽  
Hammad R. Humud
Keyword(s):  
Laser Pulse ◽  
Laser Pulses ◽  
Structural Features ◽  
Optical Absorption Spectroscopy ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Shell Nanoparticles ◽  
X Ray ◽  
Photocatalytic Activities ◽  
Core Shell Nanoparticles

Core-shell nanoparticles (SiO2/Ag) were manufactured by using a two-step process: Electric detonation of Ag. Wire in colloidal solution particles then by using laser pulses, nanoparticles are released. The structural features of these nanoparticles were checked by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The (XRD) study showed the progressive coverage of SiO2/Ag by nanoparticles according to the energies of the laser pulse. Measurements of morphology and EDX confirmed the Core/shell structure with particle size at the nano level. It confirmed that preliminary analysis consists of a SiO2 core and an Ag shell from FESEM. The surface of the microscopic balls (SiO2) has been covered completely and homogeneously with Ag nanoparticles, Moreover, Ultraviolet-Visible, and by optical absorption spectroscopy, the Nanoparticles with core crust SiO2/Ag showed excellent photocatalytic activities at various concentrations and laser pulse energy.

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