Total cross sections for single electron capture by N+ ions impinging on Ne
, Kr, and Xe were measured in the energy range of 1.0-5.0 keV. The electron
capture cross sections for all the targets studied are found to be in exce
llent agreement with previous data in the low-energy range. These results g
ive a general shape of the whole curve of single electron capture cross sec
tions for the N+-Ne system over a wide range of energy. For the cases of N-Kr and N+-Xe systems, semiempirical calculation using the two-state approx
imation are in very good agreement with present cross-section data. (C) 200
1 Elsevier Science B.V.