Design of the LORD experiment and perspectives of ultrahigh-energy particles observation

The feasibility of using the Lunar Orbital Radio Detector (LORD) to detect radio signals from showers initiated by ultrahigh-energy particles interacting with the lunar regolith is studied. The design of the LORD space apparatus is presented. The simulation by the Monte Carlo method has shown the necessity to take into account the radio signal reflection from the lower Lunar regolith boundary. As a result, the increase of the observation efficiency of true events increases by several times. This fact greatly enhances the scientific potential of experiments with the lunar orbital radio detector.