Fast Neutron Scattering Analysis - University of Cape Town

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Panel on the assessment of the practicality of Pulse Fast Neutron Transmission Spectroscopy for Aviation Safety Report: 1999 Washington D.C. Recommendations: 1. Do not consider accelerator-based technologies to have promise for deployment as a primary screening procedure for checked baggage inspection. Any screening procedure relying on an accelerator cannot compete with available technologies on either cost or practicality bases 2. Do not fund any large accelerator-based hardware development projects. Combinations of experimental work with existing laboratory equipment, mathematical modeling and simulation can better define the potential of nuclear technologies without the expense or time required to design and build new hardware.
Location of contraband in FNSA measurements Rotate and translate package across collimated beam. Backward detector Forward detector Package Collimated mono-energetic neutron beam Transmission detector Shielding Rotating turntable Translating trolley
Page 1: Contraband detection, using neutron
Page 5 and 6: Bombing of Pan Am Flight 103 (Boein
Page 7 and 8: Common approaches to detect hidden
Page 9 and 10: Oxygen concentration (moles cm -3 )
Page 11 and 12: Neutron - based interrogation metho
Page 13 and 14: Thermal neutron capture thermal neu
Page 15 and 16: Fast neutron inelastic scattering m
Page 17 and 18: Neutrons in, neutrons out fast neut
Page 19 and 20: National Accelerator Centre, near C
Page 21 and 22: 1500 mm 300 mm 600 mm 400 mm 310 mm
Page 23 and 24: Pulse height (L) channel 60 40 20 0
Page 27 and 28: θ lab : 150 o 45 o Parameter: Puls
Page 29 and 30: Scattering signatures measured for
Page 31 and 32: The sensitivity of the approach for
Page 33 and 34: P x (x,k) represents the degree to
Page 35 and 36: Ammonium Nitrate Composition B Comp
Page 37: A group probability function indica
Page 41 and 42: Results from a Rotational-Translati
Page 43 and 44: Detection of explosives in airline
Page 46 and 47: Detection of illicit drugs in airli
Page 48 and 49: FNSA screening times per suspect it

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