Development of material and method for 3D printing an absorber for a sampling detector

A new method for creating an absorber for a sampling detector using 3D printing technology on an FDM printer is proposed. A prototype of the absorber was manufactured using the proposed method. Alloys of bismuth, lead, tin and cadmium are proposed as absorber materials. The alloys studied are close to lead in their absorption properties; at the same time, they have a melting point that allows their use in 3D printing together with polymeric materials, avoiding high temperatures. It is experimentally shown that the selected material and method can potentially be used to form an alternating scintillator-reflector-absorber structure in a single technological cycle. The proposed method can be useful in the development of sampling detectors with improved energy resolution.