Matter and Radiation at Extremes
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Transport properties of warm and hot dense iron from orbital free and corrected Yukawa potential molecular dynamics
Matter and Radiation at Extremes - Tập 2 - Trang 287-295 - 2017
The equation of states, diffusions, and viscosities of strongly coupled Fe at 80
and 240 eV with densities from 1.6 to 40 g/cm3 are studied by orbital-free
molecular dynamics, classical molecular dynamics with a corrected Yukawa
potential and compared with the results from average atom model. A new local
pseudopotential is generated for orbital free calculations. For low densities,
the Yukawa mode...
Dynamics of N5+-H electron capture in Debye plasmas
Matter and Radiation at Extremes - Tập 1 - Trang 114-122 - 2016
The electron capture in N5+-H collisions imbedded in a Debye plasma is studied
by using the two-center atomic orbital close-coupling method in the energy range
from 1 keV/u to 200 keV/u. The atomic orbitals and electron binding energies of
atomic states are calculated within the Debye–Hückel approximation of the
screened Coulomb potential and used in atomic orbital close-coupling dynamics
formalis...
First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility
Matter and Radiation at Extremes - Tập 2 - Trang 77-86 - 2017
We present our recent laser-plasmas instability (LPI) comparison experiment at
the SGIII laser facility between the spherical and cylindrical hohlraums. Three
kinds of filling are considered: vacuum, gas-filling with or without a capsule
inside. A spherical hohlraum of 3.6 mm in diameter, and a cylindrical hohlraum
of 2.4 mm × 4.3 mm are used. The capsule diameter is 0.96 mm. A flat-top laser
puls...
The pulsed high magnetic field facility and scientific research at Wuhan National High Magnetic Field Center
Matter and Radiation at Extremes - Tập 2 - Trang 278-286 - 2017
Wuhan National High Magnetic Field Center (WHMFC) at Huazhong University of
Science and Technology is one of the top-class research centers in the world,
which can offer pulsed fields up to 90.6 T with different field waveforms for
scientific research and has passed the final evaluation of the Chinese
government in 2014. This paper will give a brief introduction of the facility
and the development...
Investigation of spherical and concentric mechanism of compound droplets
Matter and Radiation at Extremes - Tập 1 - Trang 213-223 - 2016
Polymer shells with high sphericity and uniform wall thickness are always needed
in the inertial confined fusion (ICF) experiments. Driven by the need to control
the shape of water-in-oil (W1/O) compound droplets, the effects of the density
matching level, the interfacial tension and the rotation speed of the continuing
fluid field on the sphericity and wall thickness uniformity of the resulting
p...
Optimization of hole-boring radiation pressure acceleration of ion beams for fusion ignition
Matter and Radiation at Extremes - Tập 3 - Trang 28-39 - 2018
In contrast to ion beams produced by conventional accelerators, ion beams
accelerated by ultrashort intense laser pulses have advantages of ultrashort
bunch duration and ultrahigh density, which are achieved in compact size.
However, it is still challenging to simultaneously enhance their quality and
yield for practical applications such as fast ion ignition of inertial
confinement fusion. Compare...
A general comparison between tokamak and stellarator plasmas
Matter and Radiation at Extremes - Tập 1 - Trang 192-200 - 2016
This paper generally compares the essential features between tokamaks and
stellarators, based on previous review work individually made by authors on
several specific topics, such as theories, bulk plasma transport and edge
divertor physics, along with some recent results. It aims at summarizing the
main results and conclusions with regard to the advantages and disadvantages in
these two types of ...
A tabletop, ultrashort pulse photoneutron source driven by electrons from laser wakefield acceleration
Matter and Radiation at Extremes - Tập 2 - Trang 296-302 - 2017
Relativistic electron beams driven by laser wakefield acceleration were utilized
to produce ultrashort neutron sources. The experiment was carried out on the 38
fs, ∼0.5 J, 800 nm Ti:Sapphire laser in the 10 TW UT3 laser lab at University of
Texas at Austin. The target gas was a high density pulsed gas jet composed of
90% He and 10% N2. The laser pulse with a peak intensity of 1.5 × 1018 W/cm2
int...
Investigation of Al plasmas from thin foils irradiated by high-intensity extreme ultraviolet
Matter and Radiation at Extremes - Tập 2 - Trang 129-138 - 2017
Dynamics and spectral transmission of Al plasma produced by extreme ultraviolet
(EUV) irradiation of 0.75-μm thick Al foil is investigated. The EUV radiation
with the peak power density in the range of 0.19–0.54 TW/cm2 is provided by
Z-pinch formed by W multiwire array implosion in the Angara-5-1 facility.
Geometry of the experiment ensures that there are no plasma fluxes from the
pinch toward the...
Compact Z-pinch radiation source dedicated to broadband absorption measurements
Matter and Radiation at Extremes - Tập 1 - Trang 179-186 - 2016
In order to acquire a broadband absorption spectrum in a single shot, a compact
radiation source was developed by using a Z-pinch type electric discharge. This
paper presents the mechanical and electrical construction of the source, as well
as its electrical and optical characteristics, including the intense continuum
of radiation emitted by the source in the UV and visible spectral range. It also...
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