Following a new approach we studied the microvoid structure in amorphous canonical systems constructed by statistic relaxation method under pair interatomic potentials of b/rm with m in range 2-50. The microvoid structure has been analyzed in three following terms: the radius, the number and volume distributions of all cavities surrounding a central atom in the amorphous structure. Analyzing the microvoid structures in the canonical model with m=15.5 and Lennard-Jones model we found that the microvoid structures of both models are quite different despite of they have the same pair radial distribution functions and atomic density. The significance features of the microvoid distributions for the canonical models with different parameters m is also discussed.
