Marconi, Mario Carlos, authorRocca, Jorge J., authorAmerican Institute of Physics, publisher2015-07-282015-07-281989Marconi, Mario C. and Jorge J. Rocca, Time-Resolved Extreme Ultraviolet Emission from a Highly Ionized Lithium Capillary Discharge, Applied Physics Letters 54, no. 22 (29 May 1989): 2180-2182.http://hdl.handle.net/10217/2118A fast discharge current pulse (50 ns FWHM) was used to create a highly ionized plasma in a 500-μm-diam lithium hydride capillary 3.8 cm in length. Time-resolved extreme ultraviolet spectra of the capillary plasma show simultaneous line emission from highly ionized (O VI) and singly ionized (O II) species, indicating the existence of a hot-core plasma (Te>25 eV) surrounded by a significantly cooler plasma near the walls. The intensity of the 72.9 nm emission corresponding to the Li III 3-2 transition was observed to increase during the decay of the current pulse, consistent with excitation by electron-ion recombination. The results are relevant to the possibility of amplification of extreme ultraviolet radiation in a discharge-pumped device.born digitalarticleseng©1989 American Institute of Physics.Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.ultraviolet radiationlithium hydridesplasma productionultraviolet spectralithium ionsrecombinationelectric dischargesText