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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. Figueroa, A. Fraser, M. Galassi, J. Gomez, J. Gonzales, A. Green, N. Hengartner, G. Hogan, A. Klimenko, P. McGaughey, G. McGregor, J. Medina, C. Morris, K. Mosher, C. Orum, F. Pazuchanics, W. Priedhorsky, A. Sanchez, A. Saunders, R. Schirato, L. Schultz, M. Sossong, M. Sottile, J. Tenbrink, R. Van de Water, K. Vixie and B. Wohlberg, "Optimizing the tracking efficiency for cosmic ray muon tomography", in 2006 IEEE Nuclear Science Symposium Conference Record, 2006


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. One of most important aspects of cosmic ray tomography is minimizing exposure time. The cosmic ray flux is about 1/cm^2/min, 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 ~3GeV is used).

BibTeX Entry

author = {J. A. Green and C. Alexander and T. Asaki and J. Bacon and G. Blanpied and K. Borozdin and A. Canabal-Rey and M. Cannon and R. Chartrand and D. Clark and C. Espinoza and E. Figueroa and A. Fraser and M. Galassi and J. Gomez and J. Gonzales and A. Green and N. Hengartner and G. Hogan and A. Klimenko and P. McGaughey and G. McGregor and J. Medina and C. Morris and K. Mosher and C. Orum and F. Pazuchanics and W. Priedhorsky and A. Sanchez and A. Saunders and R. Schirato and L. Schultz and M. Sossong and M. Sottile and J. Tenbrink and R. Van de Water and K. Vixie and B. Wohlberg},
title = {Optimizing the tracking efficiency for cosmic ray muon tomography},
year = {2006},
urlpdf = {},
booktitle = {2006 IEEE Nuclear Science Symposium Conference Record}