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

Muon radiography technology for detecting high-Zmaterials

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Abstract：

This paper studies the possibility of using the scattering of cosmic muons to identify threatening high-Zmaterials. 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-Zmaterials, 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- Zmaterials[J]. Chinese Physics C, 2010, 34(5): 610-614. doi: 10.1088/1674-1137/34/5/020

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Received: 2009-05-15
Revised: 2009-12-15

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沈阳化工大学材料科学与工程学院沈阳 110142

Muon radiography technology for detecting high-Zmaterials

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-Zmaterials. 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-Zmaterials, 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.