Radiation-Thermal Mechanism of Initiation of PETN in the Region of Absorption of a Nanosecond-Duration Electron Beam

摘要

A radiation-thermal mechanism of initiation of a PETN sample by a nanosecond-duration electron beam is examined. It is assumed that the energy of the electron beam is spent not only on heating the sample, but also on generating active species. The initiation of PETN was simulated using three-step kinetic mechanism. Calculations have shown that taking into account the formation of active species in the mechanism of PETN initiation significantly lowers the initiation energy threshold.