X-ray source with photon energy 5 keV pumped by laser

Investigation of a monochromatic point X-ray source of photon energy simila r to 5 keV has been carried out. The source was set up using a laser produc ed aluminium plasma as a cathode and a point-tip titanium anode. Optimum pa rameters of the diode were determined from experimental measurements of X-r ay intensity dependence on laser pulse energy, applied accelerating voltage , and distance between target (cathode) and anode, using Nd:glass laser pul ses (FWHM 30 ns) of 2 mJ to 4 J energy. Electron temperature characterizati on of the target plasma was also performed from the XUV emission spectrum ( 5 to 80 Angstrom). Parameters of X-ray radiation in Ti K-shells are 1) spec tral brightness of similar to 10(20) photons/cm(2)-sec-sr-keV, 2) spatial s ize similar to 300 microns, and 3) X-ray pulse duration less than 20 ns.