Nondestructive detection of heavily shielded materials by using nuclear resonance fluorescence with a laser-compton scattering γ-ray source

Nobuhiro Kikuzawa, Ryoichi Hajima, Nobuyuki Nishimori, Eisuke Minehara, Takehito Hayakawa, Toshiyuki Shizuma, Hiroyuki Toyokawa, Hideaki Ohgaki

    研究成果: Article査読

    51 被引用数 (Scopus)

    抄録

    We perform a proof-of-principle experiment for a nondestructive method for detecting the elemental and isotopic composition of materials concealed by heavy shields such as iron plates with a thicl<ness of several centimeters. This method uses nuclear resonance fluorescence (NRF) triggered by an energy-tunable laser-Compton scattering (LCS) γ-ray source. One-dimensional mapping of a lead blocl< hidden behind 1.5-cm-thicl< iron plates is obtained by measuring an NRF γ-ray of a lead isotope 208Pb. We observe a 5512-l<eV γ-ray from 208Pb excited by the quasi-monochromatic LCS γ-rays with energies up to 5.7 MeV. The edge position of the lead block is consistent with the exact position within the uncertainty.

    本文言語English
    論文番号036502
    ジャーナルApplied Physics Express
    2
    3
    DOI
    出版ステータスPublished - 2009 3 1

    ASJC Scopus subject areas

    • 工学(全般)
    • 物理学および天文学(全般)

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