Chilla, J. L. A., authorHartshorn, D., authorCortázar, O. D., authorTomasel, F. G., authorShlyaptsev, V., authorRocca, Jorge J., authorAmerican Physical Society, publisher2007-01-032007-01-031994Rocca, J. J., et al., Demonstration of a Discharge Pumped Table-Top Soft-X-Ray Laser, Physical Review Letters 73, no. 16 (17 October 1994): 2192-[2196].Rocca, J. J., et al., Errata to "Demonstration of a Discharge Pumped Table-Top Soft-X-Ray Laser", Physical Review Letters 75, no. 6 (7 August 1995): 1236.http://hdl.handle.net/10217/67823Includes errata.We report the first observation of large soft-x-ray amplification (gl = 7.2) in a discharge-created plasma. A fast, ~40 kA, current pulse from a compact discharge was used to excite plasma columns up to 12 cm in length in 4-mm channels, producing population inversion in the J = 0-1 line of Ne-like Ar and resulting in a gain of 0.6 cm-1 at 46.9 nm. The beam divergence was measured to be <9 mrad.born digitalarticleseng©1994 American Physical Society.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.Text