Abstract
Introduction
Cosmic-ray muon imaging is a kind of nondestructive detection technology which can be used to detect unknown objects in geological exploration, civil engineering and nuclear safety. Transmission imaging and scattering tomography schemes are studied.
Method
The transmission scheme uses a multilayer detector to measure the direction of a cosmic-ray muon passing through an object. The scattering scheme involves placing two detectors upstream and downstream of the object to record the incident and exit directions of the muon passing through the object. The effect of the detector resolution on the imaging clarity of transmission imaging was studied. The applicable scenarios of the two schemes were analyzed.
Results
The results by calculating show that in the transmission imaging of a hundred-meter object, a spatial resolution of 2.5 m can be achieved, and Cu and Fe can be discriminated with a density difference of 1.1 g/cm3. Scattering tomography is mainly suitable for meter-level objects, which can detect 0.2 m chamber and distinguish 0.05 m heavy metal blocks in rock.
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References
M. Tanabashi et al., Review of particle physics. Phys. Rev. D 98(3), 030001 (2018)
E.P. George, Cosmic rays measure overburden of tunnel. Commonw. Eng. 455–457 (1955)
L.W. Alvarez et al., Search for hidden chambers in the pyramids. Science 167(3919), 832–839 (1970)
K.N. Borozdin et al., Surveillance: radiographic imaging with cosmic-ray muons. Nature 422(6929), 277 (2003)
S. Buontempo et al., Perspectives for the radiography of Mt. Vesuvius by cosmic ray muons. Earth Planets Space 62(2), 131 (2010)
K. Morishima et al., Discovery of a big void in Khufu’s Pyramid by observation of cosmic-ray muons. Nature 552(7685), 386 (2017)
U. Fano, Penetration of protons, alpha particles, and mesons. Annu. Rev. Nucl. Sci. 13(1), 1–66 (1963)
S. Procureur, Muon imaging: principles, technologies and applications. Nuclear Instrum. Methods Phys. Res. 878, 169–179 (2018)
G. Moliere, Theorie der streuung schneller geladener teilchen ii mehrfach-und vielfachstreuung. Zeitschrift für Naturforschung A 3(2), 78–97 (1948)
H.A. Bethe, Moliere’s theory of multiple scattering. Phys. Rev. 89(6), 1256 (1953)
W.T. Scott, The theory of small-angle multiple scattering of fast charged particles. Rev. Mod. Phys. 35(2), 231 (1963)
G.R. Lynch, O.I. Dahl, Approximations to multiple Coulomb scattering. Nucl. Instrum. Methods Phys. Res. Sect. B 58(1), 6–10 (1991)
W.C. Priedhorsky et al., Detection of high-Z objects using multiple scattering of cosmic ray muons. Rev. Sci. Instrum. 74(10), 4294–4297 (2003)
L.J. Schultz et al., Image reconstruction and material Z discrimination via cosmic ray muon radiography. Nuclear Instrum. Methods Phys. Res. Sect. A Accel. Spectrom. Detect. Assoc. Equip. 519(3), 687–694 (2004)
T.K. Gaisser, Cosmic Rays and Particle Physics (University Press, Cambridge, 1990).
S.R. Cherry, M.E. Phelps, J.A. Sorenson, Physics in Nuclear Medicine (Saunders, Philadelphia, 2003).
R. Ahmad, Yu. Ding, O.P. Simonetti, Edge sharpness assessment by parametric modeling: application to magnetic resonance imaging. Concepts Magn. Resonan. Part A 44(3), 138–149 (2015)
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Li, M., Heng, Y., Wang, Y. et al. Study of imaging unknown objects by cosmic-ray muons. Radiat Detect Technol Methods 5, 192–199 (2021). https://doi.org/10.1007/s41605-021-00246-9
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DOI: https://doi.org/10.1007/s41605-021-00246-9