Empirical expressions for angular deviation of muons transmitted through slabs of iron, lead and uranium

Mitra, M.; Sarkar, Pradip; Kudryavtsev, V. A.

doi:10.1016/j.nima.2009.02.037

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…There are no false positives observed that can be attributed to the cargo container. The ability to detect these high-Z materials from the background is in agreement with previous work published for experimental data and simulations [1][2][3][4][5][6][7][8][9][10][11][12][13][14] that also show the capability of muon tomography in discriminating different density materials from one another.…”

Section: Results For Cargo Containing 5 Shielded Nuclear Materials Wi...supporting

confidence: 90%

“…While effective under certain conditions, current technologies employed at international borders struggle to detect emitted radiation upon the introduction of shielding. Muon tomography (MT) represents a new type of imaging technique that has shown promise in both simulation and experimental studies in discriminating high-Z shielding materials from low-Z background clutter [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Muons are a natural source of radiation that rain down upon the Earth with an average energy of 6 GeV, at a rate of ∼ 170 per m 2 per second [15].…”

Section: Introductionmentioning

confidence: 99%

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Simulation study into the identification of nuclear materials in cargo containers using cosmic rays

Blackwell¹,

Kudryavtsev²

2015

J. Inst.

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Muon tomography represents a new type of imaging technique that can be used in detecting high-Z materials. Monte Carlo simulations for muon scattering in different types of target materials are presented. The dependence of the detector capability to identify high-Z targets on spatial resolution has been studied. Muon tracks are reconstructed using a basic point of closest approach (PoCA) algorithm. In this article we report the development of a secondary analysis algorithm that is applied to the reconstructed PoCA points. This algorithm efficiently ascertains clusters of voxels with high average scattering angles to identify 'areas of interest' within the inspected volume. Using this approach the effect of other parameters, such as the distance between detectors and the number of detectors per set, on material identification is also presented. Finally, false positive and false negative rates for detecting shielded HEU in realistic scenarios with low-Z clutter are presented.

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Section: Results For Cargo Containing 5 Shielded Nuclear Materials Wi...supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Simulation study into the identification of nuclear materials in cargo containers using cosmic rays

Blackwell¹,

Kudryavtsev²

2015

J. Inst.

Self Cite

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“…Figure 7(b) shows the distribution of hit position of vertically going muons along the length of one full PS bar, using the source-based parameterization. muon tracks to estimate the extent of scattering, when these muons pass through the high 'Z' material [36][37][38][39]. To circumvent the problem due to the non-collimated nature of the source, Can Liao et al [40], calibrated their scintillators by using a blue light-emitting diode to emulate the scintillating light, since the emission spectrum of their scintillator (EJ-200) mainly covers the blue range.…”

Section: Jinst 17 P02036mentioning

confidence: 99%

A new technique to enhance the position resolution of large area plastic scinitillators to reconstruct the cosmic muon tracks

Sehgal¹,

Dey²,

Behera³

et al. 2022

J. Inst.

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In this paper, we present a study to use thick plastic scintillators to reconstruct the cosmic muon tracks, that can be used for the applications like Muon Tomography. At Bhabha Atomic Research Centre (BARC), India, a plastic scintillator array — `ISMRAN (Indian Scintillator Matrix for Reactor Anti-Neutrinos),' with a total weight of 1.0 ton has been configured for neutrino physics study. Using the ISMRAN scintillators matrix, we present a technique of the position calibration of thick plastic scintillators using cosmic muons as a probe. The position resolution obtained from the cosmic muons based calibration method is compared with the one obtained from the traditional calibration method using the radioactive source. Finally, the accuracy of reconstructed cosmic muon tracks from the two position calibration techniques is compared using the χ2/ndf distribution of the fitted cosmic muon tracks.

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“…Among the various techniques of volcanic monitoring, muography is unique as it is based on astroparticle physical phenomena and technology that differs from those used in conventional geophysics. Muons passing through a geological material lose energy through the excitation and ionization of atoms (due to collisions) and photonuclear interaction, which produce a deflection of the muons from their original trajectories [70]. The attenuation of the energy and the deviation of the effective trajectory of the atmospheric muons crossing a dense medium (e.g.…”

Section: Muography As a Monitoring Tool For Volcanoesmentioning

confidence: 99%

Muography as a new complementary tool in monitoring volcanic hazard: implications for early warning systems

et al. 2021

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Muography uses muons naturally produced in the interactions between cosmic rays and atmosphere for imaging and characterization of density differences and time-sequential changes in solid (e.g. rocks) and liquid (e.g. melts ± dissolved gases) materials in scales from tens of metres to up to a few kilometres. In addition to being useful in discovering the secrets of the pyramids, ore prospecting and surveillance of nuclear sites, muography successfully images the internal structure of volcanoes. Several field campaigns have demonstrated that muography can image density changes relating to magma ascent and descent, magma flow rate, magma degassing, the shape of the magma body, an empty conduit diameter, hydrothermal activity and major fault lines. In addition, muography is applied for long-term volcano monitoring in a few selected volcanoes around the world. We propose using muography in volcano monitoring in conjunction with other existing techniques for predicting volcanic hazards. This approach can provide an early indication of a possible future eruption and potentially the first estimate of its scale by producing direct evidence of magma ascent through its conduit in real time. Knowing these issues as early as possible buy critically important time for those responsible for the local alarm and evacuation protocols.

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Empirical expressions for angular deviation of muons transmitted through slabs of iron, lead and uranium

Cited by 9 publications

References 9 publications

Simulation study into the identification of nuclear materials in cargo containers using cosmic rays

Simulation study into the identification of nuclear materials in cargo containers using cosmic rays

A new technique to enhance the position resolution of large area plastic scinitillators to reconstruct the cosmic muon tracks

Muography as a new complementary tool in monitoring volcanic hazard: implications for early warning systems

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