TITLE

Piece work

AUTHOR(S)
Fisher, Richard
PUB. DATE
March 2005
SOURCE
Engineer (00137758);3/29/2005, Vol. 293 Issue 7671, p10
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
The article reports that a team at Liverpool University is building a gamma-ray scanner for airports that creates clear images of hidden drugs and explosives by piecing together their components like a jigsaw. Explosives or drugs universally comprise oxygen, nitrogen, hydrogen and carbon in different quantities, and have a unique fingerprint based on the ratios of these four elements. The Liverpool researchers' device will bombard the bag or suitcase with neutrons, and any hidden explosives or drugs will release gamma rays from each of their four components at different energy levels.
ACCESSION #
16659403

 

Related Articles

  • Biological application of Doppler broadening of neutron-induced prompt gamma-ray from energetic 7*Li. Sakai, Y.; Kubo, M. K.; Matsue, H.; Yonezawa, C. // Journal of Radioanalytical & Nuclear Chemistry;Aug2005, Vol. 265 Issue 2, p287 

    By probing Doppler broadened line-shapes of prompt γ -ray at 478 keV emitted from moving 7*Li produced via the 10B(n, γ)7*Li reaction, matrix materials containing and/or surrounding boron species were non-destructively characterized for several growing stages of soybean. It was elucidated...

  • Eta-meson photoproduction on protons, neutrons, and light nuclei in the nucleon-resonance region. Ignatov, A. S.; Mushkarenkov, A. N.; Nedorezov, V. G. // Physics of Atomic Nuclei;Oct2009, Vol. 72 Issue 10, p1773 

    Eta-meson photoproduction on protons, neutrons, and light nuclei is reviewed. New results obtained for photoproduction on protons and neutrons at the GRAAL facility are analyzed in detail. The experiment in question was performed in a gamma-ray beam that was obtained by means of Compton...

  • Prompt gamma radiation from fission fragments due to the Strutinsky-Denisov polarisation. Karpeshin, F. F. // European Physical Journal A -- Hadrons & Nuclei;Aug2010, Vol. 45 Issue 2, p251 

    The hard electric dipole radiation from fission fragments of 235U by thermal neutrons is predicted. The radiation arises due to the Strutinsky-Denisov-induced polarisation mechanism. The probability of the radiation is at the level of 0.0025 per fission, which is in agreement with experiment....

  • Spectroscopic Measurement System for ITER Divertor Plasma: Impurity Influx Monitor (divertor). Sugie, Tatsuo; Ogawa, Hiroaki; Kasai, Satoshi; Kusama, Yoshinori // AIP Conference Proceedings;3/12/2008, Vol. 988 Issue 1, p218 

    The detailed design of the Impurity Influx Monitor (divertor) has been carried out to provide the measurement capability in the harsh environment such as higher irradiation levels of neutron, gamma-ray and particles than in present devices. The in-situ calibration system using a micro...

  • Late stages of the evolution of close compact binaries: Type I supernovae, gamma-ray bursts, and supersoft X-ray sources. Tutukov, A.V.; Fedorova, A.V. // Astronomy Reports;Apr2007, Vol. 51 Issue 4, p291 

    We consider the evolution of close binaries resulting in the most intensive explosive phenomena in the stellar Universe—Type Ia supernovae and gamma-ray bursts. For Type Ia supernovae, which represent thermonuclear explosions of carbon-oxygen dwarfs whose masses reach the Chandrasekhar...

  • A phoswich detector for high-energy neutrons. Takada, M.; Nakamura, T. // Radiation Protection Dosimetry;Aug2007, Vol. 126 Issue 1-4, p178 

    A phoswich detector was developed to measure neutron energy spectra from a few MeV to a few hundreds MeV in aircrafts and space crafts. Radiation fields, which both crafts are exposured, consist of neutrons, gamma rays, protons, etc. The phoswich detector can measure neutrons separately from...

  • Astrophysics: A puzzling ?-ray burst. Costa, Enrico // Nature;12/1/2011, Vol. 480 Issue 7375, p47 

    The article focuses on recent research on gamma-ray bursts (GRB). It states that proposed mechanisms to explain GRBs and their afterglows are complex and often contradictory. It offers information on differences between long and short GRBs, stating that long bursts are caused by hypernovae after...

  • Are Gamma-Ray Burst Outflows Neutron-Rich? Metzger, Brian D.; Thompson, Todd A.; Quataert, Eliot // AIP Conference Proceedings;5/22/2008, Vol. 1000 Issue 1, p413 

    Rapidly-accreting black holes and young, rapidly-rotating magnetars (“proto-magnetars”) are two possible central engines for gamma-ray bursts (GRBs). The midplane of neutrino-cooled accretion disks and the surface of proto-magnetars are both neutron-rich, with a neutron-to-proton...

  • The TRIUMF-ISAC gamma-ray escape suppressed specrometer, TIGRESS. Hackman, G.; Svensson, C. E. // Hyperfine Interactions;Feb2014, Vol. 225 Issue 1-3, p241 

    The TRIUMF-ISAC Gamma-Ray Escape Suppressed Spectrometer is a high energy-resolution, high efficiency γ-ray detector array for radioactive beam experiments. It consists of high-purity germanium detectors with scintillator suppressors and waveform digitization. TIGRESS can operate in modes...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics