Effect of the geometry of a half-cavity on the output and spatial coherence of the 21.2 nm laser investigated with the COLAX code O. Larroche, A. Klisnick, D. Ros, A. Sureau et C. MöllerJ. Phys. IV France, 11 PR2 (2001) Pr2-289-Pr2-292DOI: https://doi.org/10.1051/jp4:2001254