title: Sector-shaped fast organic liquid scintillation detectors based neutron coincidence counter.
abstract: A simulation based on the Monte Carlo method is described which has been performed using MCNPX 2.6.0, to model the geometry of a sector-shaped liquid scintillation detector in response to coincident neutron events. The detection of neutrons from a mixed-oxide (MOX) fuel pellet has been simulated for different thicknesses of scintillators. A layer of lead has been used to reduce the gamma-ray fluence reaching the scintillator and, the effect of lead for neutron detection has also been estimated by considering different thicknesses of lead layers.
authors: Department of Engineering, Lancaster University, Lancaster LA1 4YR, UK. Electronic address: k.gamage@lancaster.ac.uk.
authors: K A A
authors: KA
authors: Gamage
authors: Department of Engineering, Lancaster University, Lancaster LA1 4YR, UK.
authors: M J
authors: MJ
authors: Joyce
authors: Hybrid Instruments Ltd., The Gordon Manley Building, Lancaster University, Lancaster LA1 4YQ, UK.
authors: F D
authors: FD
authors: Cave
keywords: Monte Carlo simulations; Nuclear material assay; Safeguard applications; Sector-shaped liquid scintillation detector