MULTIPLE IONIZATION OF NOBLE GASES BY He+ A. C. F. Santos, W. S. Melo, M. M. Sant'Anna, G. M. Sigaud, and E. C. Montenegro Departamento de F=EDsica, Pontif=EDcia Universidade Cat=F3lica do Rio de Janeiro, PUC-Rio, Cx. Postal 38071, Rio de Janeiro, RJ 22452-970, Brazil In this work, we present absolute multiple ionization cross sections of He, Ne, Ar, Kr, and Xe by impact of He+ in the energy range from 1.0 MeV up to 3.5 MeV. The present results are compared with the previous ones by DuBois . We have analyzed our results within the framework of Bethe Theory and a quite good agreement with the results from literature for electron impact is found.