Ground level neutron monitoring instruments

In the scope of scientific collaboration between Lebedev Physical Institute RAS, University Mackenzie (Brazil) and National Space Institute (INPE, Brazil) we are currenty involved in the developing of neutron detector. This experimental device will help us to study high energy phenomena at the Sun and dynamic processes in the Earth's atmosphere. The device consists of several detecting modules. Each of them includes neutron detectors, pressure and temperature sensors. To receive data from each detecting module uses interface module that connects to computer via serial interface. We present and discuss first experimental results obtained by constructed neutron detector.