THE ENERGY SPREAD OF IONS FROM GOLD LIQUID METAL ION SOURCES AS A FUNCTION OF SOURCE PARAMETERS S. Papadopoulos, D. Barr, W.L. Brown et A. Wagner J. Phys. Colloques, 45 C9 (1984) C9-217-C9-222 DOI: 10.1051/jphyscol:1984936