| 摘要 |
<p>The invention relates to a nonintrusive system for controlling objects by using natural isotopes. According to the invention, the control system comprises an isotope irradiator-container () wherein there are placed two natural isotopes () of different energies, one high energy isotope and one low energy isotope, on a transportation system () which moves them between a position closed in the container and a position open in the irradiator, and two sets of specialized radiation detectors () receiving the radiation emitted by the two natural isotopes () and which are connected to a data acquisition system () which takes over the information generated by the detectors () at predetermined time intervals, the said information being processed by a processing system ().</p> |
