RECENT ADVANCES IN LASER SPECTROSCOPY FOR ANALYSIS AND CONTROL IN NUCLEAR INDUSTRIES T. BERTHOUD, N. DELORME, N. DRIN, B. FLEUROT, B. KIRSCH, P. MAUCHIEN et C. MOULIN J. Phys. Colloques, 48 C7 (1987) C7-765-C7-766 DOI: 10.1051/jphyscol:19877189