Comparison of the performance of different converters for neutron radiography and tomography using fission neutrons

An extensive study of the characteristic parameters of different types of converters for the detection of fast neutrons in radiography and tomography was performed. pp-Converters, plastic scintillators and some new scintillators were available for comparison. The investigated parameters were linearity, relative luminescent sensitivity, signal-to-noise ratio, spatial resolution and gamma-to-neutron sensitivity. A summary of the results and discussion are given.