Designing a toroidal crystal for monochromatic X-ray imaging of a laser-produced He-like plasma

Brilliance Improvement of a Laser-Produced Soft X-Ray Plasma

The brilliance of a laser-produced soft X-ray source is enhanced for gaseous target concepts. In contrast to solid or liquid target materials, these sources are clean and versatile but provide a comparably low conversion efficiency of laser energy into EUV and soft X-ray radiation. The basic idea is to induce supersonic effects in the gas jet, leading to a local increase of the particle density...

Space- and time-resolved monochromatic x-ray imaging for laser-imploded core plasma

In fast ignition scheme [1], dense plasma formation and additional heating with an ultra-short high-energy laser pulse are of great importance. In particular, implosion dynamics and energy transport process by fast particles must be investigated with x-ray spectroscopy and imaging in order to attain efficient fusion burn. We have measured the electron temperature and density profiles of laser-i...

Curved crystal x-ray optics for monochromatic imaging with a clinical source.

Monochromatic x-ray imaging has been shown to increase contrast and reduce dose relative to conventional broadband imaging. However, clinical sources with very narrow energy bandwidth tend to have limited intensity and field of view. In this study, focused fan beam monochromatic radiation was obtained using doubly curved monochromator crystals. While these optics have been in use for microanaly...

X-ray Emission Spectra from Laser-produced Cobalt Plasma

Development of a time-resolved soft x-ray spectrometer for laser produced plasma experiments.

A 2400 lines/mm variable-spaced grating spectrometer has been used to measure soft x-ray emission (8-22 Å) from laser-produced plasma experiments at Lawrence Livermore National Laboratory's Compact Multipulse Terrawatt (COMET) Laser Facility. The spectrometer was coupled to a Kentech x-ray streak camera to study the temporal evolution of soft x rays emitted from the back of the Mylar and the co...