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Description
Two table-top neutron generators producing 14 MeV and 2.5 MeV neutrons have been installed at the Neutron Irradiation Laboratory for Electronics (NILE) of the Rutherford Appleton Laboratory. The neutron fields are generated through deuterium–tritium (DT) and deuterium–deuterium (DD) fusion reactions, respectively. Monte Carlo simulations supported the design and optimisation of the facility.
This work presents the characterisation and dosimetry of the radiation fields using a range of complementary measurement techniques. Activation foils provide standard passive measurements of neutron fluence, while active detectors, including fission chambers, are primarily used for online beam monitoring. Diamond detectors are used for high-resolution neutron spectroscopy, and scintillation detectors provide both neutron monitoring and spectrometric measurements, with the additional capability of neutron–gamma discrimination. SRAM based detectors are deployed as a reference for the irradiation of electronics applications.