High-Resolution Radiographs Produced by Single X-Ray ($\lambda$2.9 Angstroms) Pulses from UV Laser and Xe Cluster Interactions

The ability to produce high spatial resolution radiographs of tiny objects with short pulse x-rays is of high interest in the fields of x-ray micro-imaging and high field physics. This work reports the taking of radiographs exhibiting a resolution better than 10 microns of fruit flies and ants with a single x-ray (about 4.5 keV) pulse. The x-ray pulse was produced from Xe(L) 3d-2p hollow atom transitions excited by a high power UV laser pulse (180 fs, 248 nm, 600 mJ) interacting with Xe clusters. The emission that contributed to the x-ray imaging is concentrated in the wavelength of 2.9 Angstroms.