Review of the 1st EUV Light Sources Code Comparison Workshop

Abstract

We review the results of the 1st Extreme Ultraviolet (EUV) Light Sources Code Comparison Workshop. The goal of this workshop was to provide a platform for specialists in EUV light source plasma modeling to benchmark and validate their numerical codes using well-defined case studies. Detailed consideration of a plethora of atomic collisional and radiative processes is required for modeling EUV light source plasmas. Eight institutions spanning four countries contributed data to the workshop. Two topics were addressed, namely (i) the atomic kinetics and radiative properties of tin plasmas under EUV-generating conditions and (ii) laser absorption in a fully ionized, one-dimensional hydrogen plasma. In this paper, we summarize the key findings of the workshop and outline plans for future iterations of the code comparison activity.

Computational study of laser-produced plasma, EUV generation, and the impact of magnetic fields

“…Here, FLASH uses a ray-tracing algorithm to compute laser energy deposition using the inverse Bremsstrahlung mechanism. As FLASH uses a three-temperature fluid model, the tabulated equation of state and opacity, [21][22][23] and multigroup diffusion radiation transfer, it can accurately compute energy transfer between fluids and radiation throughout the plasma evolution. Figure 1(a) shows different time snap-shots of the hydrodynamic simulation of the Sn target (mass density).…”