Isotope-specific detection of low-density materials with laser-based monoenergetic gamma-rays

What we believe to be the first demonstration of isotope-specific detection of a low-Z and low density object shielded by a high-Z and high-density material using monoenergetic gamma rays is reported. The isotope-specific detection of LiH shielded by Pb and Al is accomplished using the nuclear reson...

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Bibliographic Details
Published in:Optics letters 2010-02, Vol.35 (3), p.354-356
Main Authors: ALBERT, F, ANDERSON, S. G, SHVERDIN, M. Y, TREMAINE, A. M, HARTEMANN, F. V, SIDERS, C. W, MCNABB, D. P, BARTY, C. P. J, ANDERSON, G. A, BETTS, S. M, GIBSON, D. J, HAGMANN, C. A, HALL, J, JOHNSON, M. S, MESSERLY, M. J, SEMENOV, V. A
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Language:English
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Summary:What we believe to be the first demonstration of isotope-specific detection of a low-Z and low density object shielded by a high-Z and high-density material using monoenergetic gamma rays is reported. The isotope-specific detection of LiH shielded by Pb and Al is accomplished using the nuclear resonance fluorescence line of L7i at 478 keV. Resonant photons are produced via laser-based Compton scattering. The detection techniques are general, and the confidence level obtained is shown to be superior to that yielded by conventional x-ray and gamma-ray techniques in these situations.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.000354