Authors:

Eftihia Giannoudakos

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About Paper:

The Mobile Antineutrino Demonstrator (MAD) is a mobile detector for nuclear nonproliferation and reactor monitoring. MAD is a nonintrusive detector that will have the capability to travel to various nuclear reactors. The purpose is to monitor different nuclear reactors and ensure excess plutonium-239 is not being created inside those reactors. MAD is made up of two detectors, a 2D detector with °Li doped scintillator bars and a 3D detector with scintillator cubes separated by sheets of °LiZnS. ROADSTR is a predecessor of MAD and has been tested using °Li doped bars as well as °LiZnS wrapped bars to understand the background of test sites. Geant-4 software was used to simulate ROADSTR and compare the °Li doped bars with the °LiZnS wrapped bars. Analysis of simulation results showed the °LiZnS wrapped bars to have more total neutron captures and better resistance to fast neutrons. Distribution of °Li in each bar also showed to be influential to capture efficiencies of both thermal and fast neutrons.

Source:

Illinois Institute of Technology

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Co-authors:

Eftihia Giannoudakos