Clearance inspection technology of uranium waste by fast neutron direct interrogation method

Haruyama, Mitsuo; Takase, Misao; Takamine, Jun 

In recently year, clearance level of the uranium waste is concretized, and then the inspection technology with low cost and high precision is required. Therefore, We performed applicability evaluation for the uranium waste of Fast neutron direct interrogation method and developed a suitable measurement system for the waste. As a result, it was confirmed that the measurement to be lower than clearance level greatly was possible by using the optimized measurement system. In this report, we introduce applicability evaluation to the uranium waste of this technique and a principle and the refinement of the device.