investigation of neutron detection using the digital video disc (dvd) and converter layers

The neutron source at the shahid bahonar university of kerman employs an americium-beryllium (am-be) source with an activity of 5 ci. this study aimed to calculate neutron tracks from this source using experimental and simulation approaches. the ptrac command of the mcnpx code was utilized to determine the neutron spectrum incident on the digital video disc (dvd) converter layer. advances in neutron detection methods have introduced significant innovations, including the use of converter layers combined with dvd layer as nuclear track detector. in this technique, a boron oxide layer with a thickness of 0.1 millimeters was put on the dvd surface to convert neutrons into alpha particles, allowing for nuclear track recording. empirical results demonstrated that the number of tracks depended on the boron concentration in the converter layer. the angular spectrum of the dvd converter layer indicates that the highest particle collision angle occurred near 60°. simulation result confirmed the feasibility of this method for neutron detection.