Design and Assembly of High Resolution Fast-Neutron Radiography Panel

Although large industrial x-ray flat panel imagers are readily available off-the-shelf, a flat panel imager for fast neutron radiography does not exist. A high-resolution fast-neutron flat panel radiography system was designed and fabricated to produce images utilizing a 6x6 array of ROSSPAD modules. Each module utilizes an IDEAS ROSSPAD with an 8×8 array of SensL MICROFJ-60035-TSV SiPMs coupled to a 3 mm thick acrylic light spreader and 3 mm thick sheet of EJ-200. The resulting imager can produce high-resolution, high-energy neutron radiographs in a portable flat panel form factor.