scholarly journals Atomic physics modeling of transmission spectra of Sc-doped aerogel foams to support OMEGA experiments

2016 ◽  
Vol 87 (11) ◽  
pp. 11E337 ◽  
Author(s):  
H. M. Johns ◽  
N. E. Lanier ◽  
J. L. Kline ◽  
C. J. Fontes ◽  
T. S. Perry ◽  
...  
Keyword(s):  
Atomic Physics ◽  
Transmission Spectra ◽  
Physics Modeling

scholarly journals Radiation transport and atomic physics modeling in high-energy-density laser-produced plasmas

1994 ◽  
Vol 12 (2) ◽  
pp. 223-244 ◽  
Author(s):  
K. Eidmann
Keyword(s):  
Energy Density ◽  
Atomic Physics ◽  
Radiation Transport ◽  
Gold Foil ◽  
High Energy ◽  
Physical Models ◽  
High Energy Density ◽  
Radiation Hydrodynamics ◽  
Laser Plasmas ◽  
Physics Modeling

The radiation hydrodynamics in laser-produced high-energy-density plasmas has been successfully simulated by means of the MULTI hydrocode. It is used in combination with the SNOP atomic physics code, which uses a steady-state screened hydrogenic explicit ion model and which generates non-LTE opacity tables for MULTI. After a brief general review of the modeling of the radiation hydrodynamics in laser-produced plasmas, the underlying physical models of MULTI and SNOP are described in detail, with particular emphasis on atomic physics. Examples of simulations of the radiation transport in laser plasmas are presented. They include a laser-irradiated gold foil and a radiatively heated carbon foil.

scholarly journals Atomic Physics Modeling and Applications for ICF Plasmas

2013 ◽  
Vol 8 (0) ◽  
pp. 3404056-3404056
Author(s):  
Emilio MÍNGUEZ ◽  
Miguel A. MENDOZA ◽  
Rafael RODRÍGUEZ ◽  
Jesus G. RUBIANO ◽  
Juan M. GIL ◽  
...  
Keyword(s):  
Atomic Physics ◽  
Physics Modeling

The Interpretation of Line Profiles

1977 ◽  
Vol 36 ◽  
pp. 191-215
Author(s):  
G.B. Rybicki
Keyword(s):  
Magnetic Fields ◽  
Atomic Physics ◽  
Velocity Fields ◽  
Spectral Lines ◽  
Inhomogeneous Structure ◽  
The Sun ◽  
Line Profiles ◽  
Physical Phenomena

Observations of the shapes and intensities of spectral lines provide a bounty of information about the outer layers of the sun. In order to utilize this information, however, one is faced with a seemingly monumental task. The sun’s chromosphere and corona are extremely complex, and the underlying physical phenomena are far from being understood. Velocity fields, magnetic fields, Inhomogeneous structure, hydromagnetic phenomena – these are some of the complications that must be faced. Other uncertainties involve the atomic physics upon which all of the deductions depend.

Effect of MCl (M = Na, K) addition on microstructure and electrical conductivity of forsterite

2020 ◽  
Vol 92 (1) ◽  
pp. 10901
Author(s):  
Saloua El Asri ◽  
Hamid Ahamdane ◽  
Lahoucine Hajji ◽  
Mohamed El Hadri ◽  
Moulay Ahmed El Idrissi Raghni ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Electrical Conductivity ◽  
Single Phase ◽  
Sol Gel ◽  
Complex Impedance ◽  
Transmission Spectra ◽  
Electrical Measurements ◽  
Cation Type ◽  
Edx Analyses ◽  
The Fourier Transform

Forsterite single phase powder Mg2SiO4 was synthesized by sol–gel method alongside with heat treatment, using two different cation alkaline salts MCl as mineralizers (M = Na, K) with various mass percentages (2.5, 5, 7.5, and 10 wt.%). In this work, we report on the effect of the cation type and the added amount of used mineralizer on microstructure and electrical conductivity of Mg2SiO4. The formation of forsterite started at 680–740  °C and at 630–700  °C with KCl and NaCl respectively, as shown by TG-DTA and confirmed by XRD. Furthermore, the Fourier transform infrared (FTIR) transmission spectra indicated bands corresponding to vibrations of forsterite structure. The morphology and elemental composition of sintered ceramics were examined by SEM-EDX analyses, while their densities, which were measured by Archimedes method, increased with addition of both alkaline salts. The electrical measurements were performed by Complex Impedance Spectroscopy. The results showed that electrical conductivity increased with the addition of both mineralizers, which was higher for samples prepared with NaCl than those prepared with KCl.

Sign in / Sign up

Export Citation Format

Share Document