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