Results 31 to 40 of about 152 (76)

Hybrid atomic models for spectroscopic plasma diagnostics [PDF]

, 2006
We propose a hybrid approach to treating atomic structure and rates in collisional-radiative models, combining the completeness of highly averaged models with the accuracy of detailed models.
Bauche, J, Bauche-Arnoult, C, Gu, M F, Hansen, S B   +3 more
core  

Effect of incoming radiation on the non-LTE spectrum of Xe at Te = 100 eV

, 2011
The effect of a diluted Planckian radiation field on a Xe gas at the electron temperature of 100 eV is investigated within the framework of a Collisional Radiative Model, using the HULLAC code.
Bailey, Bar-Shalom, Bauche, Bouquet, Bouquet, Bozier, Busquet, Busquet, Chung, Doss, Drake, Hill, Klapisch, Klapisch, Klapisch, Mandelbaum, Marcel Klapisch, Mazevet, Michel Busquet, Reighard, Remington, Rose, Ryutov, Scott, Sobelman   +24 more
core   +1 more source

Detailed Opacity Calculations for Stellar Models

, 2018
Radiative opacity is an important quantity in the modeling of stellar structure and evolution. In the present work we recall the role of opacity in the interpretation of pulsations of different kinds of stars.
Comet, Maxime, Gilleron, Franck, Pain, Jean-Christophe   +2 more
core  

Excited States in Warm and Hot Dense Matter

, 2023
Accurate modeling of warm and hot dense matter is challenging in part due to the multitude of excited states that must be considered. In thermal density functional theory, these excited states are averaged over to produce a single, averaged, thermal ...
Fontes, C. J., Rehn, D. A., Starrett, C. E., Thelen, T. Q.   +3 more
core  

Another Proof of the Four Colour Theorem -- Part 2 -- Discharging a minimal 5-Chromatic Planar Graph

, 2022
In RSST, they "replace the mammoth hand-checking of unavoidability that A&H required, by another mammoth hand-checkable proof " (page 18). Here, the proof of unavoidability is accomplished in a lengthy structured hand-checkable proof whose entirety is ...
Allaire, Frank
core  

Spectroscopy of diagnostically-important magnetic-dipole lines in highly-charged 3d$^n$ ions of tungsten

, 2011
An electron beam ion trap (EBIT) is used to measure extreme ultraviolet spectra between 10 nm and 25 nm from highly-charged ions of tungsten with an open 3d shell (W XLVIII through W LVI).
Draganić, I. N., Gillaspy, J. D., Osin, D., Ralchenko, Yu., Reader, J.   +4 more
core   +1 more source

Charge State Distributions in Dense Plasmas

, 2020
Charge state distributions in hot, dense plasmas are a key ingredient in the calculation of spectral quantities like the opacity. However, they are challenging to calculate, as models like Saha-Boltzmann become unreliable for dense, quantum plasmas. Here
Fontes, C. J., Gill, N. M., Johns, W., Shaffer, N. R., Starrett, C. E., White, J.   +5 more
core  

Unlocking Potential: Mapping Arabic Student Theses to Innovate Inter-Departmental Exchange Programs [PDF]

This study aimed to map the trends of thesis topics and research methods used by students of the Arabic Language Education (PBA) and Arabic Literature (BSA) programs at the Islamic State University of Raden Fatah Palembang during 2020–2021.
Dolla Sobari, Kristina Imron, Nadya Syafira Putri, Salwa Humairoh, Yahya Abdullah   +4 more
core   +2 more sources

Evaluation of X-ray Spectroscopic Techniques for Determining Temperature and Density in Plasmas [PDF]

, 2019
Temperature and density measurements of plasmas are important for understanding various phenomena. For example, equations of state, most scaling arguments for Inertial Confinement Fusion and laboratory astrophysics all rely upon accurate knowledge of ...
Lane, Theodore Scott
core   +1 more source

EMISSION X DE PLASMAS CHAUDS HORS EQUILIBRE THERMODYNAMIQUE LOCAL CREES PAR LASER [PDF]

, 2015
X-ray emission of mid to high Z plasmas not in local thermodynamic equilibrium (LTE) is particularly difficult to modelize due to high number of electronic transitions to take into account.
Anne-Claire, Bourgaux
core   +2 more sources