Speaker
Description
High-energy muons generated from cosmic-ray particle showers have been found to exhibit properties suitable for imaging the interior of large structures due to their high penetrating power. Based on the absorption or the scattering of muons in the target object, a technique for producing three-dimensional image of the object, known as Muon Tomography, has been widely in practice for several decades for various applications in the fields of geology, industry, homeland security etc.
In the present work, we attempt to produce shadow of different materials on a detector plane placing it under muon shower using GEANT4 [1] simulation framework. The typical muon flux reaching the Earth’s surface at a rate of about ten thousand muons per minute per metre square vertically. Muons of such rate with fixed energy will be emulated using Monte-Carlo technique from a plane placed above the material under inspection. A cubical box of different materials like Al, Fe, Pb, U will be placed symmetrically under the particle generation plane to allow most of the muons pass through it. A detecting plane will be kept below it at a fixed distance to record the muon hits. The hit positions on the detector will be plotted to study the image pattern produced for different materials individually. It is planned to present also a study on the effect of various parameters, such as dimension of the box, muon energy etc. on the produced images.
References:
[1] S. Agostinelli, et al., “GEANT4 – a simulation tool kit,” Nuclear Instruments & Methods A506 (2003) 250303.
[2] M. Hohlmann, et al., “GEANT4 Simulation of a Cosmic Ray Muon Tomography System with Micro Pattern Gas Detectors for the Detection of High Z Materials”, IEEE Transactions on Nuclear Science 56 (2009) 1356.
| Presentation type | Oral |
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