Temporal and spectral characteristics of soft x radiation from laser-irradiated cylindrical cavities

Abstract
Cylindrical cavity targets with inner diameters between 200 and 300 μm have been irradiated with 4 J, 80 ps, Nd:glass laser pulses through a 100-μm-wide longitudinal slit. From the spatially resolved temporal and spectral behavior of the x-ray emission along the axis, data on temperature and density of the expanding primary and secondary plasmas and of the region of collision have been obtained.