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- W2031935844 abstract "Abstract A neutron Albedo system has been developed for imaging of buried landmines and improvised explosive devices (IEDs). It involves irradiating the ground with fast neutrons and subsequently detecting the thermalized neutrons that return. A scintillating 6Li loaded ZnS(Ag) screen with a sensitive area of 40 cm×40 cm is used as a thermal neutron detector. Scintillation light is captured by orthogonal arrays of wavelength-shifting fibers placed on either side of the scintillator surface and then transferred to X and Y multi-pixel PMTs. A timing circuit, used with pulsed neutron sources, records the time when a neutron detection takes place relative to an external synchronization pulse from the pulsed source. Experimental tests of the Albedo system performance have been done in a sand box with a 252Cf neutron source (no time gating) and with pulsed D–D (2.6 MeV) neutrons from the Defense R&D Ottawa Van de Graaff accelerator (with time gating). Information contained in the time evolution of the thermal neutron field provided improved detection capability and image reconstruction. The detector design is described and experimental results are discussed." @default.
- W2031935844 created "2016-06-24" @default.
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- W2031935844 date "2011-10-01" @default.
- W2031935844 modified "2023-10-01" @default.
- W2031935844 title "A neutron Albedo system with time rejection for landmine and IED detection" @default.
- W2031935844 cites W1505812996 @default.
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- W2031935844 doi "https://doi.org/10.1016/j.nima.2010.09.038" @default.
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