Detection of High‐Z Objects using Multiple Scattering of Cosmic Ray Muons
Detection of High‐Z Objects using Multiple Scattering of Cosmic Ray Muons
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DOI：
10.1063/1.1664345
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发表时间：
2004-02
期刊：
影响因子：
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通讯作者：
G. Hogan;K. Borozdin;J. Gomez;C. Morris;W. Priedhorsky;A. Saunders;L. Schultz;M. E. Teasdale
中科院分区：
文献类型：
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作者：
G. Hogan;K. Borozdin;J. Gomez;C. Morris;W. Priedhorsky;A. Saunders;L. Schultz;M. E. Teasdale
考虑到非法运输铀和重元素所带来的危险，检测隐藏在大量普通货物中的高Z材料是一项重要且及时的任务。现有的射线照相技术对于屏蔽材料来说效率低下，通常价格昂贵，并且涉及真实和感知的辐射危害。我们最近证明，可以使用宇宙射线μ介子形成射线照片。在这里，我们展示了可以通过 μ 子射线照相技术在 3 维中检测和定位紧凑的高 Z 物体。宇宙射线 μ 子的自然通量约为 10,000 m−2min−1，可以使用粒子和核物理中使用的大面积 μ 子探测器在不到一分钟的时间内生成可靠的探测信号。
Detection of high‐Z material hidden inside a large volume of ordinary cargo is an important and timely task given the danger associated with illegal transport of uranium and heavier elements. Existing radiography techniques are inefficient for shielded material, often expensive and involve radiation hazards, real and perceived. We recently demonstrated that radiographs can be formed using cosmic‐ray muons. Here, we show that compact, high‐Z objects can be detected and located in 3 dimensions with muon radiography. The natural flux of cosmic‐ray muons, approximately 10,000 m−2min−1, can generate a reliable detection signal in a fraction of a minute, using large‐area muon detectors as used in particle and nuclear physics.