The Experts below are selected from a list of 34776 Experts worldwide ranked by ideXlab platform

L. Cox - One of the best experts on this subject based on the ideXlab platform.

  • Advanced active interrogation sources for remote detection of special nuclear material
    2009 IEEE Conference on Technologies for Homeland Security, 2009
    Co-Authors: J. O'malley, James R. Threadgold, S. Quillin, Gillian Weston, S. Robertson, P Adsley, K. Omar, M Owen, A. Jones, L. Cox
    Abstract:

    AWE has recently commenced a research programme to develop Techniques for the remote detection of illicitly trafficked, special nuclear material. Three Techniques that are being investigated as part of this programme utilise an active interrogation source to stimulate a radiation signature within SNM. A photonuclear Technique and nuclear resonance fluorescence require an active gamma source while a Technique stimulating fission with low energy Neutrons requires a low energy Neutron source. The potential for consolidation of the photonuclear and Neutron Technique is discussed. Conceptual designs of intense, pulsed, ion beam diodes to generate suitable sources of 6-7 MeV gamma photons for the photonuclear Technique and <100 keV Neutron sources for the active Neutron Technique are presented. The sources required for remote detection via the 60 keV Neutron or photofission Techniques are contrasted with the source requirements for nuclear resonance fluorescence.

R. Trainham - One of the best experts on this subject based on the ideXlab platform.

  • Identification of Fissionable Materials Using the Tagged Neutron Technique
    Transactions of the American Nuclear Society, 2009
    Co-Authors: R. P. Keegan, J. P. Hurley, J. R. Tinsley, R. Trainham
    Abstract:

    This summary describes experiments to detect and identify fissionable materials using the tagged Neutron Technique. The objective of this work is to enhance homeland security capability to find fissionable material that may be smuggled inside shipping boxes, containers, or vehicles. The Technique distinguishes depleted uranium from lead, steel, and tungsten. Future work involves optimizing the Technique to increase the count rate by many orders of magnitude and to build in the additional capability to image hidden fissionable materials. The tagged Neutron approach is very different to other Techniques based on Neutron die-away or photo-fission. This work builds on the development of the Associated Particle Imaging (API) Technique at the Special Technologies Laboratory (STL) [1]. Similar investigations have been performed by teams at the Oak Ridge National Laboratory (ORNL), the Khlopin Radium Institute in Russia, and by the EURITRACK collaboration in the European Union [2,3,4].

J. O'malley - One of the best experts on this subject based on the ideXlab platform.

  • Advanced active interrogation sources for remote detection of special nuclear material
    2009 IEEE Conference on Technologies for Homeland Security, 2009
    Co-Authors: J. O'malley, James R. Threadgold, S. Quillin, Gillian Weston, S. Robertson, P Adsley, K. Omar, M Owen, A. Jones, L. Cox
    Abstract:

    AWE has recently commenced a research programme to develop Techniques for the remote detection of illicitly trafficked, special nuclear material. Three Techniques that are being investigated as part of this programme utilise an active interrogation source to stimulate a radiation signature within SNM. A photonuclear Technique and nuclear resonance fluorescence require an active gamma source while a Technique stimulating fission with low energy Neutrons requires a low energy Neutron source. The potential for consolidation of the photonuclear and Neutron Technique is discussed. Conceptual designs of intense, pulsed, ion beam diodes to generate suitable sources of 6-7 MeV gamma photons for the photonuclear Technique and <100 keV Neutron sources for the active Neutron Technique are presented. The sources required for remote detection via the 60 keV Neutron or photofission Techniques are contrasted with the source requirements for nuclear resonance fluorescence.

D.l. Bot - One of the best experts on this subject based on the ideXlab platform.

  • An empirical fast-Neutron Technique for detection of explosive-like materials
    Nuclear Instruments and Methods in Physics Research Section A: Accelerators Spectrometers Detectors and Associated Equipment, 1990
    Co-Authors: Esam M.a. Hussein, P.m. Lord, D.l. Bot
    Abstract:

    Abstract A method for detecting explosives in airport baggage using fast-Neutron scattering and transmission measurements is presented. Ammonium nitrate (a commercial fertilizer) is used in the laboratory to simulate an explosive-like substance. The measurements are combined in Cartesian maps of normalized pairs of measurements. The existence of fertilizer manifests itself in these maps within a distinct region which is not significantly altered by the presence of surrounding materials. Monte Carlo simulations further confirm this phenomenon.

P. Buckup - One of the best experts on this subject based on the ideXlab platform.

  • Continuous Pollution Monitoring by Pulse-Neutron-Neutron-Technique
    Near Surface 2006 - 12th EAGE European Meeting of Environmental and Engineering Geophysics, 2006
    Co-Authors: K. Buckup, P. Buckup
    Abstract:

    Along Neutron-decay-curves a fully approach to elemental detection is featured. By mean of countrates elements and compounds may be identified over pregiven monitoring periods till the exhausting of the physical Neutron source. The pulse Neutron monitoring is equally effective for water and soil. Experiments and fieldtestd have shown, that the majority of potential pollutants (organic and inorganic) may be identified at least in the ppm-range.