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Chinese Physics C> 2010, Vol. 34> Issue(5) : 610-614 DOI: 10.1088/1674-1137/34/5/020

Muon radiography technology for detecting high-Z materials

  • This paper studies the possibility of using the scattering of cosmic muons to identify threatening high-Z materials. Various scenarios of threat material detection are simulated with the Geant4 toolkit. PoCA (Point of Closest Approach) algorithm reconstructing muon track gives 3D radiography images of the target material. Z-discrimination capability, effects of the placement of high-Z materials, shielding materials inside the cargo, and spatial resolution of position sensitive detector for muon radiography are carefully studied. Our results show that a detector position resolution of 50 μm is good enough for shielded materials detection.

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MA Ling-Ling, WANG Wen-Xin, ZHOU Jian-Rong, SUN Shao-Hua, LIU Zuo-Ye, LI Lu, DU Hong-Chuan, ZHANG Xiao-Dong and HU Bi-Tao. Muon radiography technology for detecting high-Z materials[J]. Chinese Physics C, 2010, 34(5): 610-614. doi: 10.1088/1674-1137/34/5/020
MA Ling-Ling, WANG Wen-Xin, ZHOU Jian-Rong, SUN Shao-Hua, LIU Zuo-Ye, LI Lu, DU Hong-Chuan, ZHANG Xiao-Dong and HU Bi-Tao. Muon radiography technology for detecting high-Z materials[J]. Chinese Physics C, 2010, 34(5): 610-614.  doi: 10.1088/1674-1137/34/5/020 shu
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Received: 2009-05-15
Revised: 2009-12-15
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Muon radiography technology for detecting high-Z materials

    Corresponding author: HU Bi-Tao,
  • Received Date: 2009-05-15
  • Accepted Date: 2009-12-15
  • Available Online: 2010-05-05

Abstract: 

This paper studies the possibility of using the scattering of cosmic muons to identify threatening high-Z materials. Various scenarios of threat material detection are simulated with the Geant4 toolkit. PoCA (Point of Closest Approach) algorithm reconstructing muon track gives 3D radiography images of the target material. Z-discrimination capability, effects of the placement of high-Z materials, shielding materials inside the cargo, and spatial resolution of position sensitive detector for muon radiography are carefully studied. Our results show that a detector position resolution of 50 μm is good enough for shielded materials detection.

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