Escape factors in zero-dimensional radiation-transfer codes by Phillips, G, Wark, J, Kerr, F, Rose, S, Lee, R

“…Several zero-dimensional non-LTE radiation-transfer codes are in common use within the laser-plasma community (for example, RATION, FLY, FLYCHK and GALAXY). …”

Radiation transfer in cylindrical, toroidal and hemi-ellipsoidal plasmas by Pérez-Callejo, G, Wark, J, Rose, S

“…We present solutions of the radiative transfer equation for cylinders, hollow hemi-ellipsoidal shells and tori for a uniform plasma of fixed geometry. …”

Radiation transfer effects on the spectra of laser-generated plasmas by Renner, O, Kerr, F, Wolfrum, E, Hawreliak, J, Chambers, D, Rose, S, Wark, J, Scott, H, Patel, P

Astrophysically relevant experiments on radiation transfer through plasmas with large velocity gradients by Wark, J, Rose, S, Patel, P, Djaoui, A, Renner, O, Hauer, A

“…The hydrocode gives time- and space-dependent values of the electron and ion densities, excited state fractions, electron and ion temperatures, and velocities, The hydrodynamic output is post-processed with a radiative transfer routine to construct the simulated line shape. …”

Enhancement of optically thick to thin line intensities in solar and stellar coronal plasmas through radiative transfer effects: An angularly resolved study by Kerr, F, Rose, S, Wark, J, Keenan, F

Extension of the code suite FLY to a multi-cell postprocessor for hydrodynamic plasma simulation codes by Sondhauss, P, Rose, S, Lee, R, Al'miev, I, Wark, J

“…Multiple cell simulations require a more complicated algorithm to solve the radiative transfer problem, taking into account geometry and point of observation. …”

Measurements of the K-shell Opacity in Solid-density Plasmas heated by an X-ray Free Electron Laser by Preston, TR

“…The data exhibit a thickness-independent source function, allowing the extraction of a measure of the opacity to K-shell X-rays within well-defined regimes of electron density and temperature, extremely close to Local Thermodynamic Equilibrium conditions by fitting to the simple 1D slab solution of the equation of radiative transfer. The deduced opacities at the peak of the K-α transitions of the ions are consistent with those predicted by detailed atomic-kinetics calculations.…”

X-ray line transfer in plasmas with large velocity gradients by Kerr, F, Gouveia, A, Lee, R, Patel, P, Renner, O, Rose, S, Scott, H, Wark, J

“…An astrophysically relevant experiment is compared to the output of a multidimensional radiation transfer code in which populations and radiation are self-consistently treated. …”

Simultaneous diagnosis of radial profiles and mix in NIF ignition-scale implosions via X-ray spectroscopy by Ciricosta, O, Scott, H, Durey, P, Hammel, B, Epstein, R, Preston, T, Regan, S, Vinko, S, Woolsey, N, Wark, J

“…We present here an improved 2D model for mix spectroscopy which can be used to retrieve information on both the amount of mixed mass and on the full imploded plasma profile. By performing radiation transfer, and simultaneously fitting all of the features exhibited by the spectra, we are able to constrain self-consistently the effect of the opacity of the external layers of the target on the emission, thus improving the accuracy of the inferred mixed mass. …”