Study of the stability of beam characteristics of the neon-like Zn X-ray laser using a half cavity A. R. Präg, T. Mocek, M. Kozlová, B. Rus, G. Jamelot and D. Ros Eur. Phys. J. D, 22 1 (2003) 31-40 Published online: 06 November 2002 DOI: 10.1140/epjd/e2002-00221-1