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Optimizing the Tracking Efficiency for Cosmic Ray Muon Tomography

Optimizing the Tracking Efficiency for Cosmic Ray Muon Tomography,10.1109/NSSMIC.2006.356157,J. A. Green,C. Alexander,T. Asaki,J. Bacon,G. Blanpied,K.

Optimizing the Tracking Efficiency for Cosmic Ray Muon Tomography   (Citations: 7)
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J. A. Green, C. Alexander, T. Asaki, J. Bacon, G. Blanpied, K. Borozdin, A. Canabal-Rey, M. Cannon, R. Chartrand, D. Clark, C. Espinoza, E. Figueroahttp://academic.research.microsoft.com/io.ashx?type=5&id=50535252&selfId1=0&selfId2=0&maxNumber=12&query=
We have built a detector capable of locating high Z objects in the sampling (middle) region of the detector. As atomic number increases, radiation length rapidly decreases, yielding larger variance in scattering angle. Cosmic ray muon tomography works by tracking muons above the sampling region, and tracking them below the region as well. The difference between the two trajectories yield information, via the muon scattering variance, of the materials contained within the sampling region [Borozdin, K, et al., 2003]. One of most important aspects of cosmic ray tomography is minimizing exposure time. The cosmic ray flux is about 1 cm-2 min-1, and the goal is to use them for detecting high-density materials as quickly as possible. This involves using all of the information possible to reconstruct tracks with redundant detectors. Detector scattering residuals yield a low precision measurement of muon energy. Knowing the rough energy of an incoming particle will yield more precisely the expected scattering variance (currently the expectation value of ~3 GeV is used).
Published in 2006.
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    • ...applications of drift tubes [1]-[5], drift chambers [6], [7], and resistive plate chambers [8]...

    K. Gnanvoet al. Detection and imaging of high-Z materials with a muon tomography stati...

    • ...A research group centered at Los Alamos National Laboratory proposed and investigated Muon Tomography (MT) based on the measurement of multiple scattering [1] of atmospheric cosmic ray muons as a promising technique for detecting shielded high- material and discriminating it from lowbackground material [2]–[6]...
    • ...We extend previous work [2]–[6] on muon tomography with gaseous detectors by studying in detail the impact that spatial resolution and scattering in the detector material have on the -discrimination and imaging capabilities of the muon tomography method...

    Marcus Hohlmannet al. GEANT4 Simulation of a Cosmic Ray Muon Tomography System With Micro-Pa...

    • ...Muon Tomography (MT) based on the measurement of multiple scattering [1] of atmospheric cosmic ray muons traversing cargo or vehicles is a promising technique for solving this problem [2-6] because of the deep penetration of cosmic ray muons into shielding material...

    Kondo Gnanvoet al. Performance expectations for a Tomography System using cosmic ray muon...

    • ...A description of our experimental implementation and discussion of the practical aspects of muon tracking appear in [4]...
    • ...discuss methods of muon momentum measurement elsewhere [3], [4]...
    • ...With colleagues we have constructed a large muon tracker [4] that is providing the means to validate the algorithm on experimental data...
    • ...We anticipate that detector spatial resolution will have little effect on reconstructions, since muon detectors have been built that exhibit good resolution (a few hundred microns rms [4]) relative to voxel sizes and scattering angles of interest...

    Larry Joe Schultzet al. Statistical Reconstruction for Cosmic Ray Muon Tomography

    • ...The LMT consists of 512 aluminum tracking drift tubes arranged in four planes [19]...

    A. V. Klimenkoet al. Exploring Signatures of Different Physical Processes for Fusion With S...

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