Enhanced MeV Energy X-Ray Yield using Advanced Targets.*

High-energy x-rays have the ability to passively probe/radiograph HED matter providing essential information to inertial confinement fusion, astrophysical systems, planetary interiors and fundamental plasma physics. Laser produced x-rays are key tools in this exploration due to their ability to produce broad band x-ray sources with large flux (\textasciitilde 10$^{\mathrm{13}}$-10$^{\mathrm{14}}$ photons/steradian/MeV) of \textgreater 2 MeV photons that are necessary to radiograph high-areal density objects. In this work we generate a high yield x-ray source through bremsstrahlung by irradiating a high-Z target with a kJ, ps laser. We increased the laser to target coupling by using advanced targets, such as compound parabolic concentrators and capillary structured targets.