LONG-DURATION HIGH-ENERGY PROTON EVENTS OBSERVED BY GOES IN OCTOBER 1989

We consider the prolonged injection of the high-energy (> 10 MeV) prot ons during the three successive events observed by GOES in October 198 9. We apply a solar-rotation-stereoscopy approach to study the injecti on of the accelerated particles from the CME-driven interplanetary sho ck waves in order to find out how the effectiveness of the particle ac celeration and/or escape depends on the angular distance from the shoc k axis. We use an empirical model for the proton injection at the shoc k and a standard model of the interplanetary transport. The model can reproduce rather well the observed intensity-time profiles of the Octo ber 1989 events. The deduced proton injection rate is highest at the n ose of the shock; the injection spectrum is always harder near the Sun . The results seem to be consistent with the scheme that the CME-drive n interplanetary shock waves accelerate a seed particle population of coronal origin.