  Cross sections of the residual nuclei production in $^{129}$I, $^{237}$Np and
$^{241}$Am target irradiated by proton beam with energy 660 MeV are measured by
means of activation analysis with the use of HPGe detectors. The number of
product nuclei identified amounts to 74 for $^{129}$I target, 53 for $^{237}$Np
target and 80 for $^{241}$Am target. Theoretical model analysis employing
eleven contemporary computer models of hadron-nuclear interactions is
performed. Insufficient for practical purposes precision of modelling of the
reactions under study is demonstrated. Methods for short-lived beta-unstable
reaction product identification are developed and amended, a program package
for gamma-spectrometry data analysis is described.
