Neutron Transmission Testing
Using a collimated, thermal neutron beam, the NRL provides for users the means to measure the neutron-absorbing capability of sample coupons. In addition to the beam, the NRL provides the mounting location and the neutron-measurement pulse channels necessary for measuring both the transmitted neutrons and the reactor power correction. Typically, the measurements are performed as standards-based measurements per ASTM E2971, but this can be modified as needed by the experimenter. The user must provide the standards for such tests, and coupons with neutron-absorbing capability equivalent to a boron areal density of up to 70 mg/cm2 can be measured.