High-velocity limit for the ratio of helium double-to-single ionization for highly charged, bare-ion impact.
J
Ullrich
R
Moshammer
H
Berg
R
Mann
H
Tawara
R
Dörner
J
Euler
H
Schmidt-Böcking
S
Hagmann
CL
Cocke
M
Unverzagt
S
Lencinas
V
Mergel