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Abstract A multi-detector fast neutron radiography panel was built using the pre-vious work on scalable neutron radiography using the IDEAS ROSSPADreadout module. A new aluminum housing was built to accommodate a large number of detectors tiled together. Additional changes tostartup and processing code were made to operate the detector as onecohesive unit. Spatial resolution of the full panel using Cs-137 gammas was reported to be 0.42 line pairs per centimeter at 90% MTFand 2.09 line pairs per centimeter at 10% MTF. Three neutron radio-graphs generated using a Cf-252 fission neutron source were used todetermine the spatial resolution of the panel for neutrons. The experiments had 90% MTF values of 0.24, 0.3, and 0.27 line pairs percentimeter and 10% MTF values of 1.30, 1.46, and 1.40 line pairs percentimeter. An example neutron radiograph was also used to provethat the radiography panel can perform true neutron radiography.
Young et al. (Fri,) studied this question.