Neutron radiography with a one-dimensional image sensor having a high linearity range

By a combination of a linear image sensor and a honeycomb collimator, neutron radiography imaging system with wide dynamic range was constructed. Using this system, the effective thermal neutron attenuation coefficients for several materials were evaluated systematically. The imaging system was also used to perform neutron computed tomography as well as to evaluate the CT-value for several metallic samples. The obtained CT values agreed well with the effective neutron attenuation coefficients.