Multiple ionisation cross section of krypton (Kr-Krn+, with n = 2,7) have b
een measured by time-of-flight spectrometry in the 100-3000 eV electron imp
act energy range. We determined the apparent ionisation thresholds and the
integrated oscillator strengths for the reactions. The values are compared
with data available in the literature. (Int J Mass Spectrom 184 (1999) 49-5
6) (C) 1999 Elsevier Science B.V.