Simulations of a grazing-incidence pumped x-ray laser at14.7nm

Abstract

Numerical simulations of the grazing-incidence pumped Ni-like Pd x-ray laser at $14.7\phantom{\rule{0.3em}{0ex}}\mathrm{nm}$ ($4d\ensuremath{\rightarrow}4p$, $J=0\ensuremath{\rightarrow}1$) is performed using a modified one-dimensional hydrodynamic code MEDUSA. The effective absorption of the main laser pulse in the gain region is greatly increased due to the lengthened propagation path. Results predict that a saturated output of the x-ray laser can be achieved with only subjoules driver energy on a $4\text{\ensuremath{-}}\mathrm{mm}$-long Pd target.