Numéro
J. Phys. Colloques
Volume 48, Numéro C9, Décembre 1987
X-Ray and Inner-Shell Processes
Vol. 1
Page(s) C9-323 - C9-334
DOI https://doi.org/10.1051/jphyscol:1987958
X-Ray and Inner-Shell Processes
Vol. 1

J. Phys. Colloques 48 (1987) C9-323-C9-334

DOI: 10.1051/jphyscol:1987958

X-RAY LASERS : STATE OF ART AND PROSPECT

P. JAEGLÉ

Laboratoire de Spectroscopie Atomique et Ionique, Université Paris-Sud, F-91405 Orsay Cedex, France and Greco "Interaction Laser-Matière", Ecole Polytechnique, F-91128 Palaiseau Cedex, France


Abstract
Using hot plasmas for making soft X-ray amplifiers will lead to laboratory sources brigther than any others by several orders of magnitude. Population inversions are produced either by collisional pumping due to plasma free electrons or by fast plasma cooling. Gain coefficients between 1 and 5 per cm have been measured in the 60 A - 200 A wavelength range.