Abstract
The authors use an electromagnetic method to measure the mass-velocity profile in the detonation of a tamped charge of ammonium perchlorate (APC) in a strong shell. The profile for the mass velocity in the detonation wave was recorded by a two-arm electro-magnetic sensor. Calculations on the two-phase medium together with the mass-velocity profile are shown. High porosity at the front is found; much of the material burns at the front, during the first 0.5 ..mu..sec, which agrees with previous data. It is shown that the porosity in shock compression by a wave of amplitude 10 GPa would be not less than 0.2-0.45, which conflicts with the traditional mass velocity for complete pore collapse in strong shock waves.
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