ELECTRON EMISSION AT ZERO DEGREES IN COLLISIONS OF He WITH 20 AND 80 KEV H+ IONS C McGrath*, B.S. Nesbitt*, P.C.E. McCartney*, M.B. Shah*, S.F.C. O'Rourke*, J. Geddes*, D.S.F.Crothers*, C. Illescas#, A. Riera# and H.B. Gilbody* *The School of Mathematics & Physics, The Queen's University of Belfast, Belfast, United Kingdom. #Departmento de Quimica, C-IX, Universidad Autonoma de Madrid, Cantoblanco, E-28049, Madrid, Spain Electron velocity distributions at the zero degree emission angle have been investigated at 20 keVand 80 keV in H+ - He collisions and compared with a number of theoretical predictions.