THERMAL PLASMA SOURCE OF HYDROGEN ATOMS AND IONS M.J. de GRAAF, R.P. DAHIYA, J.L. JAUBERTEAU, F.J. de HOOG, M.J.F. van de SANDE and D.C. SCHRAM J. Phys. Colloques, 51 C5 (1990) C5-387-C5-392 DOI: 10.1051/jphyscol:1990546