A computer simulation of results of LASI gap test was performed. It was confirmed that an ideal C-J detonation was developed in the donor explosive, tetryl, when the volume-burn technique was utilized. Also, the shock wave propagation in the PMMA gap and the subsequent shock wave growth in the acceptor explosive, comp-B, were observed. The results show a favorable agreement with the experimental observation on the relation between the pressure at the top of the PMMA gap and the free surface velocity at the top of comp-B.
