Investigation on thermal neutron detectors based on the Gas Electron Multiplier technology

A thermal neutron detector based on the Gas Electron Multiplier technology is presented. It is configured to let neutron beam to impinge on the detector laterally, in order to allow neutron beam interaction with a series of borated glass layers placed along the neutron path inside the device. The detector was tested on beam at ISIS spallation neutron source and at the TRIGA reactor at ENEA-Centro Ricerche Casaccia.