title:   SINGLE- AND DOUBLE-CHARGE TRANSFER BY He２＋ IONS
          IN COLLISIONS WITH N2, O2, CO and CO2 MOLECULES IN keV ENERGY
REGION

authors:    T. Kusakabe, Y. Nakai*, H. Tawara# and M. Sasao#

affiliations:  Department of Nuclear Engineering, Kinki University,
Higashi-Osaka, Osaka, Japan
              *Atomic Energy Research Institute, Kinki University,
Higashi-Osaka, Osaka, Japan
                        #National Institute for Fusion Science, Toki,
Gifu, Japan

summary: We have measured the charge transfer cross sections of the ３He
２＋ions in collisions with N2, O2, CO, and CO2 molecules in the energy
range between 0.6 and 8 keV.  The present single-charge transfer cross
sections agree and are connected with the previously reported data.  The
present double-charge transfer cross sections also agree with the higer
energy data, but are smaller than those of Ishii et al. which show
different behavior against the incident energy.