A device for detecting neutrons comprises at least one common module, where a number of solid state sensors are assembled. The sensors are configured in the module side by side and/or stacked in a layered structure. At least one of the sensors comprises neutron reactive material as a neutron converter for interacting with neutrons incident thereon to be detected and to release ionizing radiation reaction products responsive to interactions with said incident neutrons. The neutron converters are coupled with corresponding semiconductor elements so that the semiconductor elements interact with said ionizing radiation reaction products for providing electrical charges in proportion to the energy of said ionizing radiation reaction products. The semiconductor elements are configured with electrodes for providing charge collection areas for collecting said electrical charges and to provide electrically readable signals proportional to said collected electrical charges.
